Bibliographic Details
| Title: |
Fullerene-Passivated Methylammonium Lead Iodide Perovskite Absorber for High-Performance Self-Powered Photodetectors with Ultrafast Response and Broadband Detectivity. |
| Authors: |
Praba, Lakshmi, Chung, Yoseob, Han, Dong Ho, Jung, Jae Woong |
| Source: |
Molecules; Mar2025, Vol. 30 Issue 5, p1166-1, 12p |
| Subject Terms: |
FULLERENE thin films, SURFACE passivation, STRAY currents, QUANTUM efficiency, LEAD iodide |
| Abstract: |
We herein report the enhanced electrical properties of self-powered perovskite-based photodetectors with high sensitivity and responsivity by applying the surface passivation strategy using C60 (fullerene) as a surface passivating agent. The perovskite (CH3NH3PbI3) thin film passivated with fullerene achieves a highly uniform and compact surface, showing reduced leakage current and higher photon-to-current conversion capability. As a result, the improved film quality of the perovskite layer allows excellent photon-detecting properties, including high values of external quantum efficiency (>95%), responsivity (>5 A W−1), and specific detectivity (>1013 Jones) at zero bias voltage, which surpasses those of the pristine perovskite-based device. Furthermore, the passivated device showed fast rise (0.18 μs) and decay times (17 μs), demonstrating high performance and ultrafast light-detecting capability of the self-powered perovskite-based photodetectors. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
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