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

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

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

Ramashanker Gupta,^ab Vinay Gupta,

*^c Ram Datt,

^d Sandeep Arya,

^e Animesh Pandey,^ab Anoop Singh,^e Sudhir Husale,^ab Ritu Srivastava^ab and Sandeep Pathak*^f

Author affiliations

* Corresponding authors

^a Advanced Materials and Device Metrology, CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi, India

^b Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India

^c Department of Physics, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
E-mail: drvinaygupta@netscape.net, vinay.gupta@ku.ac.ae

^d SPECIFIC, Faculty of Science and Engineering, Swansea University, Bay Campus, Fabian Way, Swansea, UK

^e University of Jammu, Jammu, Jammu, and Kashmir, India

^f Centre for Energy Studies, Indian Institute of Technology Delhi, 110016 New Delhi, India
E-mail: sandeeppathak04@gmail.com

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.

Download options Please wait...

Supplementary files

Supplementary information PDF (501K)

Article information

DOI: https://doi.org/10.1039/D1MA01096D
Article type: Paper
Submitted: 19 Nov 2021
Accepted: 03 Jan 2022
First published: 06 Jan 2022
This article is Open Access

Download Citation

Mater. Adv., 2022,3, 2089-2095

Permissions

Request permissions

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

R. Gupta, V. Gupta, R. Datt, S. Arya, A. Pandey, A. Singh, S. Husale, R. Srivastava and S. Pathak, Mater. Adv., 2022, 3, 2089 DOI: 10.1039/D1MA01096D

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Materials Advances