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Enhanced photosensitive properties of a single-crystal formamidinium lead bromide iodine (FAPbBr2I) based photodetector
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Ram Datt,
Sandeep Arya ,
Animesh Pandey,
Anoop Singh,
Sudhir Husale,
Ritu Srivastava,
Sandeep Pathak
Materials Advances, Volume: 3, Issue: 4, Pages: 2089 - 2095
Swansea University Author: Ram Datt
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DOI (Published version): 10.1039/d1ma01096d
Abstract
In this work, the growth of formamidinium (FA) based mixed halide perovskite single-crystals using the inverse temperature crystallization method is investigated and characterized to detect their photosensitive properties. The structural characterization of the as-grown single crystals was studied u...
| Published in: | Materials Advances |
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| ISSN: | 2633-5409 |
| Published: |
Royal Society of Chemistry (RSC)
2022
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa60737 |
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| Abstract: |
In this work, the growth of formamidinium (FA) based mixed halide perovskite single-crystals using the inverse temperature crystallization method is investigated and characterized to detect their photosensitive properties. The structural characterization of the as-grown single crystals was studied using X-ray diffractometry to confirm whether they belong to the {110} family of planes with a high crystallinity. Their optical properties were studied using UV-Vis spectroscopy, which showed a band-gap of 2 eV, and photoluminescence (PL) spectroscopy. The formation of the Ag/FAPbBr2I/Ag structure was tested under an applied bias voltage of up to ±5 V using different excitation light sources. The results showed a remarkable photosensitive performance with a peak current of 1 μA with corresponding responsivity and detectivity values of 0.8 A W−1 and 1.81 × 1011 Jones, respectively, under exposure to a visible (376 nm) laser. |
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| College: |
Faculty of Science and Engineering |
| Funders: |
The authors would like to thank EPSRC POLARIS HOUSE (EPSRCPH) for financial support under the SUNRISE (Strategic University Network to Revolutionise Indian Solar Energy) grant number
RP03541). The author (RG) also thanks to the Council of Scientific and Industrial Research (CSIR) New Delhi, India, for providing the senior research fellowship (31/001(0451)/2016-EMR-I). |
| Issue: |
4 |
| Start Page: |
2089 |
| End Page: |
2095 |