Van der Waals nano-thermistor

Temperature is a fundamental thermodynamic variable, an essential part of science, and a key factor in technology. Therefore, it is important to develop a detection system with ultrahigh spatial and temperature resolution for various applications such as biomedicine, extreme ultraviolet (EUV) lithog...

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Main Author: He, Yanchao
Other Authors: Liu Zheng
Format: Thesis-Doctor of Philosophy
Language:English
Published: Nanyang Technological University 2023
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Online Access:https://hdl.handle.net/10356/170484
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1704842023-10-03T09:52:45Z Van der Waals nano-thermistor He, Yanchao Liu Zheng School of Materials Science and Engineering Z.Liu@ntu.edu.sg Engineering::Materials Temperature is a fundamental thermodynamic variable, an essential part of science, and a key factor in technology. Therefore, it is important to develop a detection system with ultrahigh spatial and temperature resolution for various applications such as biomedicine, extreme ultraviolet (EUV) lithography, and micro/nano-electronics. Negative temperature coefficient resistance (NTCR) thermistor, as a promising candidate that can provide ultrahigh temperature resolution, has acquired enormous commercial success, but improvements, especially in spatial resolution, remain a great challenge. Herein, we present a series of layered metal phosphorous trichalcogenides (MPTs). These compounds exhibit distinctive material properties that position them as promising candidates for temperature sensing applications. Notably, the unique cation instability inherent to these Van der Waals (vdW) materials facilitates small polaron conduction, resulting in Arrhenius-type temperature-dependent conductivity that adheres to NTCR behavior. We showcase nano-thermistors boasting nanometric lateral resolution and an impressive accuracy of 0.1 K. Moreover, we demonstrate real-time, precise temperature monitoring for heat sources spanning microscale to nanoscale dimensions and across homojunctions and heterojunctions. This study stands to chart a path towards the advancement of next generation temperature sensing technology. Doctor of Philosophy 2023-09-15T02:57:17Z 2023-09-15T02:57:17Z 2023 Thesis-Doctor of Philosophy He, Y. (2023). Van der Waals nano-thermistor. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/170484 https://hdl.handle.net/10356/170484 10.32657/10356/170484 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
He, Yanchao
Van der Waals nano-thermistor
description Temperature is a fundamental thermodynamic variable, an essential part of science, and a key factor in technology. Therefore, it is important to develop a detection system with ultrahigh spatial and temperature resolution for various applications such as biomedicine, extreme ultraviolet (EUV) lithography, and micro/nano-electronics. Negative temperature coefficient resistance (NTCR) thermistor, as a promising candidate that can provide ultrahigh temperature resolution, has acquired enormous commercial success, but improvements, especially in spatial resolution, remain a great challenge. Herein, we present a series of layered metal phosphorous trichalcogenides (MPTs). These compounds exhibit distinctive material properties that position them as promising candidates for temperature sensing applications. Notably, the unique cation instability inherent to these Van der Waals (vdW) materials facilitates small polaron conduction, resulting in Arrhenius-type temperature-dependent conductivity that adheres to NTCR behavior. We showcase nano-thermistors boasting nanometric lateral resolution and an impressive accuracy of 0.1 K. Moreover, we demonstrate real-time, precise temperature monitoring for heat sources spanning microscale to nanoscale dimensions and across homojunctions and heterojunctions. This study stands to chart a path towards the advancement of next generation temperature sensing technology.
author2 Liu Zheng
author_facet Liu Zheng
He, Yanchao
format Thesis-Doctor of Philosophy
author He, Yanchao
author_sort He, Yanchao
title Van der Waals nano-thermistor
title_short Van der Waals nano-thermistor
title_full Van der Waals nano-thermistor
title_fullStr Van der Waals nano-thermistor
title_full_unstemmed Van der Waals nano-thermistor
title_sort van der waals nano-thermistor
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/170484
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