Sustainable energy conversion & storage systems

Iridium Oxide Redox Gradient Material: Operando X‑ray Absorption of Ir Gradient Oxidation States during IrOx Bipolar Electrochemistry

Written by Anna on 24 August 2021.

Título :

Iridium Oxide Redox Gradient Material: Operando X‑ray Absorption of Ir Gradient Oxidation States during IrO_x Bipolar Electrochemistry

Autores: Laura Fuentes-Rodriguez, Llibertat Abad, Laura Simonelli, Dino Tonti, and Nieves Casañ-Pastor

Citation and DOI:

J. Phys. Chem. C 2021,

Publication Date:July 27, 2021

DOI: 10.1021/acs.jpcc.1c05012

PlumX: Iridium Oxide Redox Gradient Material: Operando X‑ray Absorption of Ir Gradient Oxidation States during IrO_x Bipolar Electrochemistry

Electrodeposited iridium oxide (K_1.7IrO_0.8 (OH)_2.2 × 1.8 H₂O; also called IrO_x) is among the best substrates for neural growth, decreasing impedance and stimulating cell growth, when used as a connected electrode. Without direct contact, it has been proven to stimulate neurons through a bipolar mechanism related to the conducting character of the material in the presence of remote electric fields.

Biomaterials, Energy

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Mechanically Tunable Lattice-Plasmon Resonances by Templated Self-Assembled Superlattices for Multi-Wavelength Surface-Enhanced Raman Spectroscopy

Written by Anna on 03 August 2021.

Título : Mechanically Tunable Lattice-Plasmon Resonances by Templated Self-Assembled Superlattices for Multi-Wavelength Surface-Enhanced Raman Spectroscopy

Autores: Mathias Charconnet, Christian Kuttner, Javier Plou, Juan Luis García-Pomar, Agustín Mihi, Luis M. Liz-Marzán, Andreas Seifert

Citation and DOI:

Small Methods, 7 July 2021
DOI: 10.1002/smtd.202100453

PlumX: Mechanically Tunable Lattice-Plasmon Resonances by Templated Self-Assembled Superlattices for Multi-Wavelength Surface-Enhanced Raman Spectroscopy

Lattice plasmons, i.e., diffractively coupled localized surface plasmon resonances, occur in long-range ordered plasmonic nanostructures such as 1D and 2D periodic lattices. Such far-field coupled resonances can be employed for ultrasensitive surface-enhanced Raman spectroscopy (SERS), provided they are spectrally matched to the excitation wavelength.

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Observation of second sound in a rapidly varying temperature field in Ge

Written by Jags on 06 July 2021.

Título : Observation of second sound in a rapidly varying temperature field in Ge

Autores: Albert Beardo, Miquel López-Suárez, Luis Alberto Pérez, Lluc Sendra, Maria Isabel Alonso, Claudio Melis, Javier Bafaluy, Juan Camacho, Luciano Colombo, Riccardo Rurali, Francesc Xavier Alvarez and Juan Sebastián Reparaz,*

Citation and DOI: Science Advances 30 Jun 2021:
Vol. 7, no. 27, eabg4677
DOI: 10.1126/sciadv.abg4677

PlumX: Observation of second sound in a rapidly varying temperature field in Ge

Second sound is known as the thermal transport regime where heat is carried by temperature waves. Its experimental observation was previously restricted to a small number of materials, usually in rather narrow temperature windows. We show that it is possible to overcome these limitations by driving the system with a rapidly varying temperature field. High-frequency second sound is demonstrated in bulk natural Ge between 7 K and room temperature by studying the phase lag of the thermal response under a harmonic high-frequency external thermal excitation and addressing the relaxation time and the propagation velocity of the heat waves. These results provide a route to investigate the potential of wave-like heat transport in almost any material, opening opportunities to control heat through its oscillatory nature.

Hits: 363

Tuning the architectures and luminescence properties of Cu(I) compounds of phenyl and carboranyl pyrazoles: the impact of 2D versus 3D aromatic moieties in the ligand backbone

Written by Jags on 25 June 2021.

Título : Tuning the architectures and luminescence properties of Cu(I) compounds of phenyl and carboranyl pyrazoles: the impact of 2D versus 3D aromatic moieties in the ligand backbone

Autores: Joan Soldevila-Sanmartín, Eliseo Ruiz, Duane Choquesillo-Lazarte, Mark E. Light, Clara Viñas, Francesc Teixidor, Rosario Núñez, * Josefina Pons and José G. Planas *

Citation and DOI: J. Mater. Chem. C, 2021, Advance Article

PlumX: Tuning the architectures and luminescence properties of Cu(i) compounds of phenyl and carboranyl pyrazoles: the impact of 2D versus 3D aromatic moieties in the ligand backbone

Incorporation of one or two o-carborane moieties at the backbone of the pyrazole ring was achieved by lithiation and nucleophilic addition onto the corresponding 3,5-dimethyl-1-(2-toluene-p-sulfonyloxyethyl)pyrazole. Two monosubstituted carboranyl pyrazoles (L2 and L3) and one disubstituted carboranyl pyrazole (L4) were synthesized and fully characterized. All new compounds, and the corresponding monosubstituted phenylderivative (L1) behave as N-type ligands upon coordination with CuI to afford different polynuclear Cu(I) compounds 1–4. Compounds 1–4 were fully characterized and their molecular structures were determined by X-ray diffraction. It is noteworthy that whereas the pyrazolylphenyl ligand L1, without o-carborane, provides a 1D coordination polymer (1), ligands containing carborane, L2–L3, affords 0D coordination compounds 2 and 3, and disubstituted carboranyl pyrazole ligand L4 gives rise to a 3D coordination polymer.

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Accelerating organic solar cell material's discovery: high-throughput screening and big data

Written by Jags on 11 June 2021.

Título : Accelerating organic solar cell material's discovery: high-throughput screening and big data

Autores: Xabier Rodríguez-Martínez, Enrique Pascual-San-José and Mariano Campoy-Quiles

Citation and DOI:

Energy Environ. Sci., 2021, Advance Article
DOI: https://doi.org/10.1039/D1EE00559F

PlumX: Accelerating organic solar cell material's discovery: high-throughput screening and big data

The discovery of novel high-performing materials such as non-fullerene acceptors and low band gap donor polymers underlines the steady increase of record efficiencies in organic solar cells witnessed during the past years. Nowadays, the resulting catalogue of organic photovoltaic materials is becoming unaffordably vast to be evaluated following classical experimentation methodologies: their requirements in terms of human workforce time and resources are prohibitively high, which slows momentum to the evolution of the organic photovoltaic technology.

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Boost of Charge Storage Performance of Graphene Nanowall Electrodes by Laser-Induced Crystallization of Metal Oxide Nanostructures

Written by Jags on 08 June 2021.

Autores: Yasmín Esqueda-Barrón, Angel Pérez Del Pino, Pablo García Lebière, Arevik Musheghyan-Avetisyan, Enric Bertran-Serra, Enikö György, Constantin Logofatu

Citation and DOI:

ACS Appl Mater Interfaces. 21;13(15):17957-17970.
Doi: 10.1021/acsami.1c00951. 2021
Erratum in: ACS Appl Mater Interfaces. 2021 May 20;: PMID: 33843185.

PlumX: Boost of Charge Storage Performance of Graphene Nanowall Electrodes by Laser-Induced Crystallization of Metal Oxide Nanostructures

Major research efforts are being carried out for the technological advancement to an energetically sustainable society. However, for the full commercial integration of electrochemical energy storage devices, not only materials with higher performance should be designed and manufactured but also more competitive production techniques need to be developed.

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Unveiling Planar Defects in Hexagonal Group IV Materials

Written by Jags on 01 June 2021.

Autores:

Elham M. T. Fadaly, Anna Marzegalli, Yizhen Ren, Lin Sun, Alain Dijkstra, Diego de Matteis, Emilio Scalise, Andrey Sarikov, Marta De Luca, Riccardo Rurali, Ilaria Zardo, Jos E. M. Haverkort, Silvana Botti, Leo Miglio, Erik P. A. M. Bakkers, and Marcel A. Verheijen

Citation and DOI:

Nano Lett. 2021, 21, 8, 3619–3625

Publication Date:April 12, 2021

https://doi.org/10.1021/acs.nanolett.1c00683

PlumX: Unveiling Planar Defects in Hexagonal Group IV Materials

Recently synthesized hexagonal group IV materials are a promising platform to realize efficient light emission that is closely integrated with electronics. A high crystal quality is essential to assess the intrinsic electronic and optical properties of these materials unaffected by structural defects. Here, we identify a previously unknown partial planar defect in materials with a type I₃ basal stacking fault and investigate its structural and electronic properties.

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Battery Materials Design Essentials

Written by Jags on 21 May 2021.

Autores: M. Rosa Palacin*

Citation and DOI:

Acc. Mater. Res. 2021, XXXX, XXX, XXX-XXX

Publication Date:April 13, 2021
https://doi.org/10.1021/accountsmr.1c00026

PlumX: Battery Materials Design Essentials

The advanced materials industry is one of the leading technology sectors worldwide. The development of such materials is at the core of the technological innovations and has been possible in the last century thanks to the transition from “observational” science to “control” science.

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Study of nanostructured ultra-refractory Tantalum-Hafnium-Carbide electrodes with wide electrochemical stability window

Written by Jags on 04 May 2021.

Autores: Emerson Coy, Visnja Babacic, Luis Yate, Karol Załęski, Yeonho Kim, Juan Sebastián Reparaz, Bernhard Dörling, Bartlomiej Graczykowski, Igor Iatsunskyi, Katarzyna Siuzdak

Citation and DOI: Chemical Engineering Journal, Volume 415, 2021, 128987, ISSN 1385-8947
https://www.sciencedirect.com/science/article/pii/S1385894721005805

PlumX: Study of nanostructured ultra-refractory Tantalum-Hafnium-Carbide electrodes with wide electrochemical stability window

Transition metal carbides have gathered increasing attention in energy and electrochemistry applications, mainly due to their high structural and physicochemical properties. Their high refractory properties have made them an ideal candidate coating technology and more recently their electronic similarity to the platinum group has expanded their use to energy and catalysis. Here, we demonstrate that the nanostructuring and stoichiometry control of the highest melting point material to this date (Ta-Hf-C) results in outstanding electrochemical stability.

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pH-Responsive Self-Assembly of Amyloid Fibrils for Dual Hydrolase-Oxidase Reactions

Written by icmab on 30 April 2021.

Autores: Marta Díaz-Caballero, Susanna Navarro, Miquel Nuez-Martínez, Francesca Peccati, Luis Rodríguez-Santiago, Mariona Sodupe, Francesc Teixidor, and Salvador Ventura*

Citation and DOI:

ACS Catal. 2021, 11, 2, 595–607

DOI: https://doi.org/10.1021/acscatal.0c03093

PlumX: pH-Responsive Self-Assembly of Amyloid Fibrils for Dual Hydrolase-Oxidase Reactions

There is an increasing interest in synthetic systems that can execute bioinspired chemical reactions without requiring the complex structures that characterize enzymes in their components. The hierarchical self-assembly of peptides provides a means to create catalytic microenvironments. Ideally, as it occurs in enzymes, the catalytic activity of peptide nanostructures should be reversibly regulated. In a typical enzyme mimetic design, the peptide’s self-assembling and catalytic activities are segregated into different regions of the sequence.

Hits: 527

Noncovalently Linked Metallacarboranes on Functionalized Magnetic Nanoparticles as Highly Efficient, Robust, and Reusable Photocatalysts in Aqueous Medium

Written by icmab on 20 April 2021.

Autores: Isabel Guerrero, Arpita Saha, Jewel Ann Maria XavierJewel Ann Maria Xavier, Clara Viñas, Isabel Romero*, and Francesc Teixidor*

Citation and DOI:

ACS Appl. Mater. Interfaces 2020, 12, 50, 56372–56384

Publication Date:December 7, 2020

DOI: https://doi.org/10.1021/acsami.0c17847

PlumX: Noncovalently Linked Metallacarboranes on Functionalized Magnetic Nanoparticles as Highly Efficient, Robust, and Reusable Photocatalysts in Aqueous Medium

A successful homogeneous photoredox catalyst has been fruitfully heterogenized on magnetic nanoparticles (MNPs) coated with a silica layer, keeping intact its homogeneous catalytic properties but gaining others due to the easy magnetic separation and recyclability. The amine-terminated magnetic silica nanoparticles linked noncovalently to H[3,3′-Co(1,2-C₂B₉H₁₁)₂]⁻ (H[1]), termed MSNPs-NH₂@H[1], are highly stable and do not produce any leakage of the photoredox catalyst H[1] in water. The magnetite MNPs were coated with SiO₂ to provide colloidal stability and silanol groups to be tethered to amine-containing units.

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Large-Scale Soft-Lithographic Patterning of Plasmonic Nanoparticles

Written by icmab on 16 April 2021.

Autores: Naihao Chiang*, Leonardo Scarabelli*, Gail A. Vinnacombe-Willson, Luis A. Pérez, Camilla Dore, Agustín Mihi, Steven J. Jonas*, and Paul S. Weiss*

Citation and DOI:

ACS Materials Lett. 2021, 3, XXX, 282–289

Publication Date:February 12, 2021

DOI: https://doi.org/10.1021/acsmaterialslett.0c00535

PlumX: Large-Scale Soft-Lithographic Patterning of Plasmonic Nanoparticles

Micro- and nanoscale patterned monolayers of plasmonic nanoparticles were fabricated by combining concepts from colloidal chemistry, self-assembly, and subtractive soft lithography. Leveraging chemical interactions between the capping ligands of pre-synthesized gold colloids and a polydimethylsiloxane stamp, we demonstrated patterning gold nanoparticles over centimeter-scale areas with a variety of micro- and nanoscale geometries, including islands, lines, and chiral structures (e.g., square spirals).

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Disentangling Electron–Phonon Coupling and Thermal Expansion Effects in the Band Gap Renormalization of Perovskite Nanocrystals

Written by icmab on 11 March 2021.

Autores: Andrea Rubino, Adrián Francisco-López, Alex J. Barker, Annamaria Petrozza, Mauricio E. Calvo, Alejandro R. Goñi*, and Hernán Míguez*

Citation and DOI:

J. Phys. Chem. Lett. 2021, 12, 1, 569–575

Publication Date:December 31, 2020

https://doi.org/10.1021/acs.jpclett.0c03042

PlumX: Disentangling Electron–Phonon Coupling and Thermal Expansion Effects in the Band Gap Renormalization of Perovskite Nanocrystals

The complex electron–phonon interaction occurring in bulk lead halide perovskites gives rise to anomalous temperature dependences, like the widening of the electronic band gap as temperature increases. However, possible confinement effects on the electron–phonon coupling in the nanocrystalline version of these materials remain unexplored. Herein, we study the temperature (ranging from 80 K to ambient) and hydrostatic pressure (from atmospheric to 0.6 GPa) dependence of the photoluminescence of ligand-free methylammonium lead triiodide nanocrystals with controlled sizes embedded in a porous silica matrix.

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Laser fabrication of hybrid electrodes composed of nanocarbons mixed with cerium and manganese oxides for supercapacitive energy storage

Written by icmab on 05 March 2021.

Autores: Pablo García Lebière, * Ángel Pérez del Pino, Guillem Domènech Domingo, Constantin Logofatu, Immaculada Martínez-Rovira, Ibraheem Yousef and Enikö György

Citation and DOI: J. Mater. Chem. A, 2021, Advance Article
https://doi.org/10.1039/D0TA06756C

PlumX: Laser fabrication of hybrid electrodes composed of nanocarbons mixed with cerium and manganese oxides for supercapacitive energy storage

Novel composite materials are being investigated for improving the energy storage performance of electrochemical capacitors. For this goal, synergistic effects via the combination of diverse types of materials are crucial. In this work, electrodes composed of reduced graphene oxide, multiwall carbon nanotubes, as well as cerium and manganese oxides were fabricated through reactive inverse matrix-assisted pulsed laser evaporation (RIMAPLE).

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Predicting the photocurrent–composition dependence in organic solar cells

Written by icmab on 02 March 2021.

Autores: Xabier Rodríguez-Martínez, Enrique Pascual-San-José, Zhuping Fei, Martin Heeney, Roger Guimerà and Mariano Campoy-Quiles

Citation and DOI: Energy Environ. Sci., 2021, Advance Article
https://doi.org/10.1039/D0EE02958K

PlumX: Predicting the photocurrent–composition dependence in organic solar cells

The continuous development of improved non-fullerene acceptors and deeper knowledge of the fundamental mechanisms governing performance underpin the vertiginous increase in efficiency witnessed by organic photovoltaics. While the influence of parameters like film thickness and morphology are generally understood, what determines the strong dependence of the photocurrent on the donor and acceptor fractions remains elusive.

Hits: 586

Enhanced Directional Light Extraction from Patterned Rare‐Earth Phosphor Films

Written by icmab on 09 February 2021.

Autores: Elena Cabello‐Olmo, Pau Molet, Agustín Mihi, Gabriel Lozano, Hernán Míguez

Citation and DOI: Adv. Optical Mater. 2020, 2001611.
DOI: https://doi.org/10.1002/adom.202001611

PlumX: Enhanced Directional Light Extraction from Patterned Rare‐Earth Phosphor Films

The combination of light‐emitting diodes (LEDs) and rare earth (RE) phosphors as color‐converting layers comprises the basis of solid‐state lighting. Indeed, most LED lamps include a photoluminescent coating made of phosphor material, i.e., crystalline matrix suitably doped with RE elements, to produce white light from a blue or ultraviolet LED chip.

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Quasiballistic phonon transport from first principles

Written by icmab on 29 January 2021.

Autores: Pol Torres, Miquel Royo, Miquel López-Suárez, Junichiro Shiomi, and Riccardo Rurali

Citation and DOI: Phys. Rev. B 102, 144305 – Published 26 October 2020
DOI: https://doi.org/10.1103/PhysRevB.102.144305

PlumX: Quasiballistic phonon transport from first principles

At short length scales phonon transport is ballistic: the thermal resistance of semiconductors and insulators is quantized and length independent. At long length scales, on the other hand, transport is diffusive and resistance arises as a result of the scattering processes experienced by phonons. In many cases of interest, however, these two transport regimes coexist. Here we propose a first-principles approach to treat quasiballistic phonon transport where diffusive and ballistic phonons receive separate theoretical treatments.

Hits: 678

Beating the Thermal Conductivity Alloy Limit Using Long-Period Compositionally Graded Si1–xGex Superlattices

Written by icmab on 08 January 2021.

Título : Beating the Thermal Conductivity Alloy Limit Using Long-Period Compositionally Graded Si_1–xGe_x Superlattices

Autores: P. Ferrando-Villalba, Shunda Chen, A. F. Lopeandía, F. X. Alvarez, M. I. Alonso, M. Garriga, J. Santiso, G. Garcia, A. R. Goñi, D. Donadio*, and J. Rodríguez-Viejo*

Citation and DOI:

J. Phys. Chem. C 2020, 124, 36, 19864–19872

Publication Date:August 11, 2020

https://doi.org/10.1021/acs.jpcc.0c06410

PlumX: Beating the Thermal Conductivity Alloy Limit Using Long-Period Compositionally Graded Si1–xGex Superlattices

Superlattices with scattering mechanisms at multiple length scales efficiently scatter phonons at all relevant wavelengths and provide a convenient route to reduce thermal transport. Here, we show, both experimentally and by atomistic simulations, that SiGe superlattices with well-established compositional gradients and a sufficient number of interfaces exhibit extremely low thermal conductivity.

Hits: 664

Homoconjugation in Light-Emitting Poly(phenylene methylene)s: Origin and Pressure-Enhanced Photoluminescence

Written by icmab on 29 December 2020.

Autores: Aleksandr Perevedentsev*, Adrián Francisco-López, Xingyuan Shi, Andreas Braendle, Walter R. Caseri, Alejandro R. Goñi, and Mariano Campoy-Quiles

Citation and DOI:

Macromolecules 2020, 53, 17, 7519–7527
Publication Date: August 26, 2020

DOI: https://doi.org/10.1021/acs.macromol.0c01153

PlumX: Homoconjugation in Light-Emitting Poly(phenylene methylene)s: Origin and Pressure-Enhanced Photoluminescence

The surprising optical properties of the non-π-conjugated polymer poly(phenylene methylene) (PPM) and its derivatives—that is, absorption in the 350–450 nm and photoluminescence (PL) in the 400–600 nm spectral regions—have been attributed to chromophores formed by homoconjugation along the polymer chain. The enabling role of homoconjugation, however, was hitherto ascertained primarily by excluding alternative origins of luminescence.

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Hydroxypropyl Cellulose Adhesives for Transfer Printing of Carbon Nanotubes and Metallic Nanostructures

Written by icmab on 30 November 2020.

Autores: Camilla Dore, Bernhard Dörling, Juan Luis Garcia‐Pomar, Mariano Campoy‐Quiles, Agustín Mihi

Citation and DOI: Small 2020, 2004795

DOI:https://doi.org/10.1002/smll.202004795

PlumX: Hydroxypropyl Cellulose Adhesives for Transfer Printing of Carbon Nanotubes and Metallic Nanostructures

Transfer printing is one of the key nanofabrication techniques for the large‐scale manufacturing of complex device architectures. It provides a cost‐effective and high‐throughput route for the integration of independently processed materials into spatially tailored architectures.

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Reduction of the Lattice Thermal Conductivity of Polymer Semiconductors by Molecular Doping

Written by icmab on 16 October 2020.

Osnat Zapata-Arteaga, Aleksandr Perevedentsev, Sara Marina, Jaime Martin, Juan Sebastián Reparaz*, and Mariano Campoy-Quiles*.
ACS Energy Lett. 2020, 5, 9, 2972–2978.

Hits: 817

Understanding the nature of the passivation layer enabling reversible calcium plating

Written by icmab on 13 October 2020.

Juan Forero-Saboya, Carine Davoisne, Rémi Dedryvère, Ibraheem Yousef, Pieremanuele Canepa * and Alexandre Ponrouch *.
Energy Environ. Sci., 2020, Advance Article.

Hits: 711

High‐Throughput Nanofabrication of Metasurfaces with Polarization‐Dependent Response

Written by icmab on 15 September 2020.

Metal nanostructures offer exciting ways to manage light at the nanoscale exploited in fields such as imaging, sensing, energy conversion, and information processing. The optical response of the metallic architectures can be engineered to exhibit photonic properties that span from plasmon resonances to more complex phenomena such as negative refractive index, optical chirality, artificial magnetism, and more.

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Microfluidic‐Assisted Blade Coating of Compositional Libraries for Combinatorial Applications: The Case of Organic Photovoltaics

Written by icmab on 08 September 2020.

Microfluidic technologies are highly adept at generating controllable compositional gradients in fluids, a feature that has accelerated the understanding of the importance of chemical gradients in biological processes.

Hits: 748

Rapid and high-resolution patterning of microstructure and composition in organic semiconductors using ‘molecular gates’

Written by icmab on 28 August 2020.

Photolithography has been a major enabling tool for miniaturisation of silicon devices that underpinned the electronics revolution. Rapid, high-resolution patterning of key material characteristics would, similarly, accelerate the advent of molecular electronics and photonics.

Hits: 762

Electrodeposited Negative Index Metamaterials with Visible and Near Infrared Response

Written by icmab on 07 August 2020.

Negative index metamaterials have revolutionized the field of photonics because of their unconventional electromagnetic properties absent in naturally occurring materials. It remains a challenge however, to achieve strong negative refractive index at optical frequencies over large areas in a device compatible fashion.

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Templated‐assembly of CsPbBr3 perovskite nanocrystals into 2D photonic supercrystals with amplified spontaneous emission

Written by icmab on 31 July 2020.

Perovskite nanocrystals (NCs) have revolutionized optoelectronic devices because of their versatile optical properties. However, controlling and extending these functionalities often requires a light management strategy involving additional processing steps.

Hits: 1041

Towards photovoltaic windows: scalable fabrication of semitransparent modules based on non-fullerene acceptors via laser-patterning

Written by icmab on 14 July 2020.

Semitransparent organic photovoltaics (OPV) possess unique properties that make them highly appealing for their integration into semitransparent architectonic elements such as windows or glazings. In order to provide sufficient transparency, non-opaque electrodes and thin photoactive layers are typically used, thus limiting the light-harvesting capacity.

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Experimental demonstration of the suppression of optical phonon splitting in 2D materials by Raman spectroscopy

Written by icmab on 10 July 2020.

Raman spectroscopy is one of the most extended experimental techniques to investigate thin-layered 2D materials. For a complete understanding and modeling of the Raman spectrum of a novel 2D material, it is often necessary to combine the experimental investigation to density functional theory calculations.

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Probing Lattice Dynamics and Electronic Resonances in Hexagonal Ge and SixGe1–x Alloys in Nanowires by Raman Spectroscopy

Written by icmab on 26 June 2020.

Recent advances in nanowire synthesis have enabled the realization of crystal phases that in bulk are attainable only under extreme conditions, i.e., high temperature and/or high pressure.

Hits: 1063

A Highly Water-Stable meta-Carborane-Based Copper Metal–Organic Framework for Efficient High-Temperature Butanol Separation

Written by Jags on 02 June 2020.

Biofuels are considered sustainable and renewable alternatives to conventional fossil fuels. Biobutanol has recently emerged as an attractive option compared to bioethanol and biodiesel, but a significant challenge in its production lies in the separation stage.

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Photoflexoelectric effect in halide perovskites

Written by Jags on 18 May 2020.

Harvesting environmental energy to generate electricity is a key scientific and technological endeavour of our time. Photovoltaic conversion and electromechanical transduction are two common energy-harvesting mechanisms based on, respectively, semiconducting junctions and piezoelectric insulators.

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Electrochemical Methods for Lithium Recovery: A Comprehensive and Critical Review

Written by icmab on 15 May 2020.

Due to the ubiquitous presence of lithium‐ion batteries in portable applications, and their implementation in the transportation and large‐scale energy sectors, the future cost and availability of lithium is currently under debate.

Hits: 879

Large area metasurfaces made with spherical silicon resonators

Written on 07 April 2020.

Pau Molet, Luz Karimé Gil-Herrera, Juan Luis Garcia-Pomar, Niccolò Caselli, Álvaro Blanco, Cefe López, Agustín Mihi. Nanophotonics. Received January 16, 2020; revised February 20, 2020; accepted February 22, 2020.

Hits: 881

Nitro-graphene oxide in iridium oxide hybrids: electrochemical modulation of N-graphene redox states and charge capacities

Written on 27 March 2020.

E. Pérez, N. M. Carretero, S. Sandoval, A. Fuertes, G. Tobias and N. Casañ-Pastor*. Mater. Chem. Front., 2020, Advance Article.

Hits: 894

Phase Diagram of Methylammonium/Formamidinium Lead Iodide Perovskite Solid Solutions from Temperature-Dependent Photoluminescence and Raman Spectroscopies

Written on 10 March 2020.

Adrián Francisco-López, Bethan Charles, M. Isabel Alonso, Miquel Garriga, Mariano Campoy-Quiles, Mark T. Weller, Alejandro R. Goñi*. J. Phys. Chem. C 2020, 124, 6, 3448-3458

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Efficient Exploration of the Composition Space in Ternary Organic Solar Cells by Combining High‐Throughput Material Libraries and Hyperspectral Imaging

Written by icmab on 14 February 2020.

Albert Harillo‐Baños, Xabier Rodríguez‐Martínez, Mariano Campoy‐Quiles. Adv. Energy Mater.2020, 10, 1902417.

Hits: 820

Achievements, Challenges, and Prospects of Calcium Batteries

Written by icmab on 21 January 2020.

M. Elena Arroyo-de Dompablo*, Alexandre Ponrouch, Patrik Johansson, M. Rosa Palacín*. Chemical Reviews Article ASAP.

Hits: 768

Narrow linewidth quantum emitters in electron-beam shaped polymer

Written by icmab on 14 January 2020.

Carlotta Ciancico, Kevin Schädler, Sofia Pazzagli, Maja Colautti, Pietro Lombardi, Johann Osmond, Camilla Dore, Agustin Mihi, Anna Ovvyan, Wolfram HP Pernice, Enrico Berretti, Alessandro Lavacchi, Costanza Toninelli, Frank H.L. Koppens, Antoine Reserbat-Plantey. ACS Photonics

Hits: 1058

Methods and Protocols for Reliable Electrochemical Testing in Post-Li Batteries (Na, K, Mg, and Ca)

Written by icmab on 10 January 2020.

Romain Dugas, Juan D. Forero-Saboya, Alexandre Ponrouch*. Chem. Mater. 2019, 31, 21, 8613-8628. Publication Date:October 15, 2019

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