High Charge Carrier Mobilities and Long Diffusion Lengths in Tin Based Metal Halide Perovskite

S. O. Adeyemo; S Kar; SHASHINI MANOORI SILVA; IMALKA JAYAWARDENA; S. Ravi P. Silva CBE; H. J. Joyce

doi:10.1109/IRMMW-THz46771.2020.9370604

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High Charge Carrier Mobilities and Long Diffusion Lengths in Tin Based Metal Halide Perovskite

Conference proceeding

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High Charge Carrier Mobilities and Long Diffusion Lengths in Tin Based Metal Halide Perovskite

S. O. Adeyemo, S Kar, SHASHINI MANOORI SILVA, IMALKA JAYAWARDENA, S. Ravi P. Silva CBE and H. J. Joyce

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

11/08/2020

DOI: https://doi.org/10.1109/IRMMW-THz46771.2020.9370604

Abstract

Charge carrier mobility

Photoconductivity

Photonic band gap

Probes

Tin

Photovoltaic Cells

Spectroscopy

Tin (Sn)-based perovskites are promising for lower band gap and tandem solar cells due to their red-shifted band gap towards the infrared region. However, Sn based hybrid metal halide perovskite is well known to suffer rapid photoconductivity decay due to the oxidation of Sn 2+ to Sn 4+ under atmospheric oxygen. Here, the charge carrier dynamics of tin based metal halide perovskite is investigated using optical pump-terahertz probe (OPTP) spectroscopy. Also, the performance of the perovskite films at different annealing temperatures is compared and the best performing temperature is identified. The Sn based perovskite films exhibited a remarkable charge carrier mobility and diffusion length.

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Title: High Charge Carrier Mobilities and Long Diffusion Lengths in Tin Based Metal Halide Perovskite
Creators: S. O. Adeyemo (Contributor) - University of Cambridge,Electrical Engineering Division,Department of Engineering,Cambridge,UK,CB3 0FA
S Kar (Contributor) - University of Cambridge,Electrical Engineering Division,Department of Engineering,Cambridge,UK,CB3 0FA
SHASHINI MANOORI SILVA (Contributor) - Advanced Technology Institute, University of Surrey,Guildford,UK,GU2 7XH
IMALKA JAYAWARDENA (Contributor) - Advanced Technology Institute, University of Surrey,Guildford,UK,GU2 7XH
S. Ravi P. Silva CBE (Contributor)
H. J. Joyce (Corresponding Author) - University of Cambridge,Electrical Engineering Division,Department of Engineering,Cambridge,UK,CB3 0FA
Conference: 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Identifiers: 99657966602346
Copyright: © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”
Academic Unit: School of Computer Science and Electronic Engineering
Language: English
Resource Type: Conference proceeding

High Charge Carrier Mobilities and Long Diffusion Lengths in Tin Based Metal Halide Perovskite

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