Journal
RSC ADVANCES
Volume 6, Issue 8, Pages 6205-6208Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra27840f
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Funding
- National Nature Science Foundation of China [51372075]
- Research Fund for the Doctoral Program of Higher Education of China (RFDP) [20124208110006]
- Natural Science Foundation of Hubei Province [2014CFB538]
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A self-powered, ultraviolet-visible perovskite photodetector based on TiO2 nanorods/CH3NH3PbI3 heterojunction was reported. We found that the device showed good photovoltaic properties with a short-circuit current density of 17.83 mA cm(-2), an open-circuit voltage of 0.76 V and a fill factor of 51.34%, leading to a PCE of 6.95%. Based on the wide band gap and the perovskite supporting part of the TiO2 nanorods, the device showed good ultraviolet- visible photo- response characteristics with the responsivity at zero bias reaching similar to 0.26 and 0.85 A W-1 at 364 and 494 nm, respectively. These results present potential applications of TiO2/ perovskite photodetectors in ultraviolet and visible regions.
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