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Steady and Transient Photocurrent Response in BaTiO3 Films

Imagen1

Fanmao Liu, Ignasi Fina, Diego Gutiérrez, Greta Radaelli, Riccardo Bertacco, Josep Fontcuberta;  
Adv. Electron. Mater. 2015, 1500171; 

DOI:10.1002/aelm.201500171

 

When ferroelectric semiconductors are illuminate they develop a significant photocurrent.
Here, by exploiting the competition between coexisting internal electric fields (imprint, depolarizing and Schottky), we show that both the direction of the photocurrent and its time-dependence can be selectively engineered. 

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