Investigating the optical and electronic properties of halide perovskite inspired antimony compounds

This thesis investigates the optical and electronic properties of ns2 electron containing Antimony compounds. The study is focused on two material systems - A3Sb2I9 and NaSbS2. The work reveals the role of A cation in templating layered A3Sb2I9 structures and the effect of Atomic mass of Metal catio...

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Main Author: Padinhare Cholakkal Harikesh
Other Authors: Nripan Mathews
Format: Thesis-Doctor of Philosophy
Language:English
Published: Nanyang Technological University 2020
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Online Access:https://hdl.handle.net/10356/137121
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1371212020-11-01T04:55:50Z Investigating the optical and electronic properties of halide perovskite inspired antimony compounds Padinhare Cholakkal Harikesh Nripan Mathews Interdisciplinary Graduate School (IGS) Energy Research Institute @NTU Nripan@ntu.edu.sg Engineering::Materials This thesis investigates the optical and electronic properties of ns2 electron containing Antimony compounds. The study is focused on two material systems - A3Sb2I9 and NaSbS2. The work reveals the role of A cation in templating layered A3Sb2I9 structures and the effect of Atomic mass of Metal cation in affecting defects in these compounds. The partial substitution of Sb with Bi was shown to tune the carriers from p to n type by changing the defects in the material. This work also reported, for the first time, switchable Photovoltaic effect in Lead free perovskites and utilized ionic-electronic coupling in NaSbS2 for potential applications in neuromorphic devices. Doctor of Philosophy 2020-02-26T05:20:24Z 2020-02-26T05:20:24Z 2019 Thesis-Doctor of Philosophy Padinhare Cholakkal Harikesh. (2019). Investigating the optical and electronic properties of halide perovskite inspired antimony compounds. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/137121 10.32657/10356/137121 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
spellingShingle Engineering::Materials
Padinhare Cholakkal Harikesh
Investigating the optical and electronic properties of halide perovskite inspired antimony compounds
description This thesis investigates the optical and electronic properties of ns2 electron containing Antimony compounds. The study is focused on two material systems - A3Sb2I9 and NaSbS2. The work reveals the role of A cation in templating layered A3Sb2I9 structures and the effect of Atomic mass of Metal cation in affecting defects in these compounds. The partial substitution of Sb with Bi was shown to tune the carriers from p to n type by changing the defects in the material. This work also reported, for the first time, switchable Photovoltaic effect in Lead free perovskites and utilized ionic-electronic coupling in NaSbS2 for potential applications in neuromorphic devices.
author2 Nripan Mathews
author_facet Nripan Mathews
Padinhare Cholakkal Harikesh
format Thesis-Doctor of Philosophy
author Padinhare Cholakkal Harikesh
author_sort Padinhare Cholakkal Harikesh
title Investigating the optical and electronic properties of halide perovskite inspired antimony compounds
title_short Investigating the optical and electronic properties of halide perovskite inspired antimony compounds
title_full Investigating the optical and electronic properties of halide perovskite inspired antimony compounds
title_fullStr Investigating the optical and electronic properties of halide perovskite inspired antimony compounds
title_full_unstemmed Investigating the optical and electronic properties of halide perovskite inspired antimony compounds
title_sort investigating the optical and electronic properties of halide perovskite inspired antimony compounds
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/137121
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