Abstract
The CH3NH3PbI3-based photodetectors were fabricated with a coplanar metal-semiconductor-metal (MSM) IDT patterned Au electrode configuration. The MSM-structured perovskite-based photodetectors exhibited a higher Ion/Ioff of about 3.77 × 102, and a response of 6.66 mA/W. Additionally, the photodetectors worked best under red illumination, and the rise and decay times were estimated to shorter than 0.04 s and 0.05 s. Especially, the durability and stability of these photodetectors were excellent, which can be exposed to the red light illumination over 1000 s. There were still stable photocurrent signal after 90 days. It indicated that the device possessed a longer durability and had a lifetime of exceeding 90 days. These outstanding performances could be potentially applicable for practical applications.
Published Version
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