High-performance stretchable photodetector based on CH3NH3PbI3 microwires and graphene
| Autor: | Zhipeng Lian, Qingfeng Yan, Jia-Lin Sun, Qianrui Lv, Huajing Fang, Jie Ding |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Graphene business.industry Photodetector 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Responsivity law Optoelectronics General Materials Science Laser illumination 0210 nano-technology business Perovskite (structure) Voltage |
| Zdroj: | Nanoscale. 10:10538-10544 |
| ISSN: | 2040-3372 2040-3364 |
| DOI: | 10.1039/c8nr03108h |
| Popis: | A stretchable photodetector was fabricated by releasing a prestrained 3 M very high bond (VHB) substrate coated with perovskite CH3NH3PbI3 microwires and graphene. The light harvesting CH3NH3PbI3 microwires were realized through a transformation from CH3NH3PbI3 bulk single crystals. Graphene served as an expressway for photoinduced carriers in the perovskite. Under a very low working voltage bias of 0.01 V and irradiance power of 13.5 mW cm−2 under 785 nm laser illumination, the responsivity could be as high as 2.2 mA W−1. When the device was stretched up to 30%, 50%, and 80% strain, the responsivity was maintained at 0.96, 0.60, and 0.21 mA W−1, respectively. It also showed a fast photoresponse ( |
| Databáze: | OpenAIRE |
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