Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141375
Title: Cubic NaSbS2 as an ionic-electronic coupled semiconductor for switchable photovoltaic and neuromorphic device applications
Authors: Harikesh, Padinhare Cholakkal
Surendran, Abhijith
Ghosh, Biplab
John, Rohit Abraham
Moorthy, Arjun
Yantara, Natalia
Salim, Teddy
Thirumal, Krishnamoorthy
Leong, Wei Lin
Mhaisalkar, Subodh
Mathews, Nripan
Keywords: Engineering::Materials
Issue Date: 2020
Source: Harikesh, P. C., Surendran, A., Ghosh, B., John, R. A., Moorthy, A., Yantara, N., . . . Mathews, N. (2020). Cubic NaSbS2 as an ionic-electronic coupled semiconductor for switchable photovoltaic and neuromorphic device applications. Advanced Materials, 32(7), 1906976-. doi:10.1002/adma.201906976
Journal: Advanced Materials 
Abstract: The recent emergence of lead halide perovskites as ionic–electronic coupled semiconductors motivates the investigation of alternative solution‐processable materials with similar modulatable ionic and electronic transport properties. Here, a novel semiconductor—cubic NaSbS2—for ionic–electronic coupled transport is investigated through a combined theoretical and experimental approach. The material exhibits mixed ionic–electronic conductivity in inert atmosphere and superionic conductivity in humid air. It is shown that post deposition electronic reconfigurability in this material enabled by an electric field induces ionic segregation enabling a switchable photovoltaic effect. Utilizing post‐perturbation of the ionic composition of the material via electrical biasing and persistent photoconductivity, multistate memristive synapses with higher‐order weight modulations are realized for neuromorphic computing, opening up novel applications with such ionic–electronic coupled materials.
URI: https://hdl.handle.net/10356/141375
ISSN: 0935-9648
DOI: 10.1002/adma.201906976
DOI (Related Dataset): https://doi.org/10.21979/N9/C9MD12
Schools: School of Electrical and Electronic Engineering 
School of Materials Science and Engineering 
Interdisciplinary Graduate School (IGS) 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Research Techno Plaza 
Rights: This is the accepted version of the following article: Harikesh, P. C., Surendran, A., Ghosh, B., John, R. A., Moorthy, A., Yantara, N., . . . Mathews, N. (2020). Cubic NaSbS2 as an ionic-electronic coupled semiconductor for switchable photovoltaic and neuromorphic device applications. Advanced Materials, 32(7), 1906976-, which has been published in final form at https://doi.org/10.1002/adma.201906976. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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