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Design and Thermal Analysis of Flexible Microheaters
With the development of flexible electronics, flexible microheaters have been applied in many areas. Low power consumption and fast response microheaters have attracted much attention. In this work, systematic thermal and mechanical analyses were conducted for a kind of flexible microheater with two...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319418/ https://www.ncbi.nlm.nih.gov/pubmed/35888852 http://dx.doi.org/10.3390/mi13071037 |
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author | Li, Dezhao Ruan, Yangtao Chen, Chuangang He, Wenfeng Chi, Cheng Lin, Qiang |
author_facet | Li, Dezhao Ruan, Yangtao Chen, Chuangang He, Wenfeng Chi, Cheng Lin, Qiang |
author_sort | Li, Dezhao |
collection | PubMed |
description | With the development of flexible electronics, flexible microheaters have been applied in many areas. Low power consumption and fast response microheaters have attracted much attention. In this work, systematic thermal and mechanical analyses were conducted for a kind of flexible microheater with two different wire structures. The microheater consisted of polyethylene terephthalate (PET) substrate and copper electric wire with graphene thin film as the middle layer. The steady-state average temperature and heating efficiency for the two structures were compared and it was shown that the S-shaped wire structure was better for voltage-controlled microheater other than circular-shaped structure. In addition, the maximum thermal stress for both structures was from the boundary of microheaters, which indicated that not only the wire structure but also the shape of micro heaters should be considered to reduce the damage caused by thermal stress. The influence resulting from the thickness of graphene thin film also has been discussed. In all, the heating efficiency for flexible microheaters can be up to 135 °C/W. With the proposed PID voltage control system, the response time for the designed microheater was less than 10 s. Moreover, a feasible fabrication process flow for these proposed structures combing thermal analysis results in this work can provide some clues for flexible microheaters design and fabrication in other application areas. |
format | Online Article Text |
id | pubmed-9319418 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-93194182022-07-27 Design and Thermal Analysis of Flexible Microheaters Li, Dezhao Ruan, Yangtao Chen, Chuangang He, Wenfeng Chi, Cheng Lin, Qiang Micromachines (Basel) Article With the development of flexible electronics, flexible microheaters have been applied in many areas. Low power consumption and fast response microheaters have attracted much attention. In this work, systematic thermal and mechanical analyses were conducted for a kind of flexible microheater with two different wire structures. The microheater consisted of polyethylene terephthalate (PET) substrate and copper electric wire with graphene thin film as the middle layer. The steady-state average temperature and heating efficiency for the two structures were compared and it was shown that the S-shaped wire structure was better for voltage-controlled microheater other than circular-shaped structure. In addition, the maximum thermal stress for both structures was from the boundary of microheaters, which indicated that not only the wire structure but also the shape of micro heaters should be considered to reduce the damage caused by thermal stress. The influence resulting from the thickness of graphene thin film also has been discussed. In all, the heating efficiency for flexible microheaters can be up to 135 °C/W. With the proposed PID voltage control system, the response time for the designed microheater was less than 10 s. Moreover, a feasible fabrication process flow for these proposed structures combing thermal analysis results in this work can provide some clues for flexible microheaters design and fabrication in other application areas. MDPI 2022-06-29 /pmc/articles/PMC9319418/ /pubmed/35888852 http://dx.doi.org/10.3390/mi13071037 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Li, Dezhao Ruan, Yangtao Chen, Chuangang He, Wenfeng Chi, Cheng Lin, Qiang Design and Thermal Analysis of Flexible Microheaters |
title | Design and Thermal Analysis of Flexible Microheaters |
title_full | Design and Thermal Analysis of Flexible Microheaters |
title_fullStr | Design and Thermal Analysis of Flexible Microheaters |
title_full_unstemmed | Design and Thermal Analysis of Flexible Microheaters |
title_short | Design and Thermal Analysis of Flexible Microheaters |
title_sort | design and thermal analysis of flexible microheaters |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9319418/ https://www.ncbi.nlm.nih.gov/pubmed/35888852 http://dx.doi.org/10.3390/mi13071037 |
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