Fabrication of Addressable Perovskite Film Arrays for High-Performance Photodetection and Real-Time Image Sensing Application
| Autor: | Bin Wang, Chao Zhang, Bin Zeng, Lin-Bao Luo, Chao Xie, Yu-Xue Zhou, Chunyan Wu, Di Wu |
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| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Materials science Polydimethylsiloxane business.industry PDMS stamp Photodetector 02 engineering and technology Photodetection Specific detectivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Responsivity chemistry Optoelectronics General Materials Science Physical and Theoretical Chemistry Image sensor 0210 nano-technology business |
| Zdroj: | The Journal of Physical Chemistry Letters. 12:2930-2936 |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.1c00521 |
| Popis: | Patterned growth of periodic perovskite film arrays is essential for application in sensing devices and integrated optoelectronic systems. Herein, we report on patterned growth of addressable perovskite photodetector arrays through an uncured polydimethylsiloxane (PDMS) oligomer-assisted solution-processed approach, in which a periodic hydrophilic/hydrophobic substrate replicating the predesigned patterns of the PDMS stamp was formed due to the migration of uncured siloxane oligomers in the PDMS stamp to the intimately contacted substrate. By using this technique, MAPbI3 film photodetector arrays with neglectable pixel-to-pixel variation, a responsivity of 2.83 A W-1, specific detectivity of 5.4 × 1012 Jones, and fast response speed of 52.7/57.1 μs (response/recovery time) were achieved. An 8 × 8 addressable photodetector array was further fabricated, which functioned well as a real-time image sensor with reasonable spatial resolution. It is believed that the proposed strategy will find potential application in large-scale fabrication of other photodetector arrays, which might be potentially important for future integrated optoelectronic devices. |
| Databáze: | OpenAIRE |
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