Giant bulk photovoltaic effect in thin ferroelectric BaTiO3 films

被引：234

作者：

Zenkevich, A. ^{[1
,2
]}

Matveyev, Yu. ^{[1
,2
]}

Maksimova, K. ^{[3
]}

Gaynutdinov, R. ^{[4
]}

Tolstikhina, A. ^{[4
]}

Fridkin, V. ^{[4
]}

机构：

[1] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[2] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[3] Deutsch Elect Synchrotron, D-22607 Hamburg, Germany

[4] Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 16期

关键词：

TITANATE; BIFEO3; LAYERS; FIELD;

D O I：

10.1103/PhysRevB.90.161409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The voltage generated in a noncentrosymmetric crystal due to the bulk photovoltaic effect (BPE) can greatly exceed the energy gap, however, the light energy conversion efficiency is extremely low. Here we show that the BPE is remarkably enhanced in the case of thin films. The measurements of the BPE in heteroepitaxial single domain ferroelectric BaTiO3 thin films reveal the enhancement of both photoinduced electric field and conversion efficiencies of the BPE by more than 4 orders of magnitude. Besides the fundamental aspect, our results indicate the potential for the use of the BPE in photovoltaic applications.

引用

页数：5

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