Abstract
We report a MAPbI3-based self-powered photodetector (SPPD). It has a dual sensing mechanism that relies on the joint properties of a photoelectric effect and a triboelectric effect of the perovskite material. Both the photoconductivity and the surface triboelectric density of the MAPbI3-based composite thin film are significantly altered upon solar illumination, which results in considerable reduction of the output voltage. The SPPD exhibits excellent responsivity (7.5 V W-1), rapid response time (<80 ms), great repeatability, and broad detection range that extends from UV to visible regions. This work presents a route to designing high-performance self-powered photodetectors from the aspect of materials.
Original language | English |
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Pages (from-to) | 11310-11316 |
Number of pages | 7 |
Journal | ACS Nano |
Volume | 9 |
Issue number | 11 |
DOIs | |
Publication status | Published - 24 Nov 2015 |
Externally published | Yes |
Keywords
- organolead halide perovskite
- photodetector
- self-powered
- triboelectric effect
ASJC Scopus subject areas
- General Materials Science
- General Engineering
- General Physics and Astronomy