Enhanced photosensitive properties of a single-crystal formamidinium lead bromide iodine (FAPbBr2I) based photodetector

Ramashanker Gupta; Vinay Gupta; Ram Datt; Sandeep Arya; Animesh Pandey; Anoop Singh; Sudhir Husale; Ritu Srivastava; Sandeep Pathak

doi:10.1039/d1ma01096d

Enhanced photosensitive properties of a single-crystal formamidinium lead bromide iodine (FAPbBr₂I) based photodetector

Ramashanker Gupta
, Vinay Gupta
, Ram Datt
, Sandeep Arya
, Animesh Pandey
, Anoop Singh
, Sudhir Husale
, Ritu Srivastava
, Sandeep Pathak

Physics

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

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.

Original language	British English
Pages (from-to)	2089-2095
Number of pages	7
Journal	Materials Advances
Volume	3
Issue number	4
DOIs	https://doi.org/10.1039/d1ma01096d
State	Published - 21 Feb 2022

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title = "Enhanced photosensitive properties of a single-crystal formamidinium lead bromide iodine (FAPbBr2I) based photodetector",

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.",

author = "Ramashanker Gupta and Vinay Gupta and Ram Datt and Sandeep Arya and Animesh Pandey and Anoop Singh and Sudhir Husale and Ritu Srivastava and Sandeep Pathak",

note = "Funding Information: 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). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

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AU - Gupta, Ramashanker

AU - Gupta, Vinay

AU - Datt, Ram

AU - Arya, Sandeep

AU - Pandey, Animesh

AU - Singh, Anoop

AU - Husale, Sudhir

AU - Srivastava, Ritu

AU - Pathak, Sandeep

N1 - Funding Information: 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). Publisher Copyright: © The Royal Society of Chemistry.

PY - 2022/2/21

Y1 - 2022/2/21

N2 - 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.

AB - 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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SN - 2633-5409

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SP - 2089

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JO - Materials Advances

JF - Materials Advances

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ER -

Enhanced photosensitive properties of a single-crystal formamidinium lead bromide iodine (FAPbBr₂I) based photodetector

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