Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 25, Pages 21066-21072Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b05860
Keywords
perovskites; polystyrene; electric field poling; stability; self-powered; photodetectors
Funding
- University of Waterloo
- Canada Foundation for Innovation, Early researcher award from Ministry of research and innovation and science, Ontario
- NSERC Canada
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A monolith photodetector is presented that utilizes the material properties of MAPbI(3) perovskite for self-powered operation and achieves improved stability by composting with polystyrene. The self powered operation makes this device suitable for remote applications and in smart systems. Improved stability of more than 20 days, with performance maintained by over 80% under ambient conditions, is achieved by incorporating polystyrene without additional fabrication steps. A plain MAPbI(3) device in comparison shows a performance degradation of 70-85% within 4 days of operation. The incorporation of polystyrene also improves the current detectivity of the device by over 70 times compared to plain perovskite.
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