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Significant enhancement of photovoltage in artificially designed perovskite oxide structures.
- Source :
- Applied Physics Letters; 3/30/2015, Vol. 106 Issue 13, p1-5, 5p, 6 Graphs
- Publication Year :
- 2015
-
Abstract
- La<subscript>0.9</subscript>Sr<subscript>0.1</subscript>MnO<subscript>3</subscript>/insulator/SrNb<subscript>0.007</subscript>Ti<subscript>0.993</subscript>O<subscript>3</subscript> multilayer and La<subscript>0.9</subscript>Sr<subscript>0.1</subscript>MnO<subscript>3</subscript>/SrNb<subscript>0.007</subscript>Ti<subscript>0.993O3</subscript>/In<subscript>2</subscript>O<subscript>3</subscript>:SnO<subscript>2</subscript>(ITO)/La<subscript>0.9</subscript>Sr<subscript>0.1</subscript>MnO<subscript>3</subscript>/SrNb<subscript>0.007</subscript>Ti<subscript>0.993</subscript>O<subscript>3</subscript> multilayer structures were designed to enhance the photovoltage. The photovoltages of these two structures under an illumination of 308 nm laser are 410 and 600 mV, respectively. The latter is 20 times larger than that (30 mV) observed in La<subscript>0.9</subscript>Sr<subscript>0.1</subscript>MnO<subscript>3</subscript>/SrNb<subscript>0.007</subscript>Ti<subscript>0.993</subscript>O<subscript>3</subscript> single junction. The origin of such significant enhancement of photovoltage is discussed in this letter. These results suggest that the photoelectric property of perovskite oxides could be much improved by artificial structure designing. The enhanced photovoltaic effects have potential applications in the ultraviolet photodetection and solar cells. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 106
- Issue :
- 13
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 101977322
- Full Text :
- https://doi.org/10.1063/1.4916993