Kinetic control of nanocrack formation in a palladium thin film on an elastomeric substrate for hydrogen gas sensing in air
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- 作者：Sungyeon KimAuthor Vitae ; Byungjin JangAuthor Vitae ; Jongbin ParkAuthor Vitae ; Young-Kook LeeAuthor Vitae ; Hyun-Sook LeeAuthor Vitae ; Sungmee Cho ; csmise@yonsei.ac.kr" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Wooyoung Lee ; wooyoung@yonsei.ac.kr" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Nanocrack ; Tensile velocity ; Mechanical properties ; Hydrogen sensor ; Low detection limit
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：230
- 期：Complete
- 页码：367-373
- 全文大小：2966 K
文摘
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The effects of various tensile velocities on nanocrack formation were studied.
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A tunable nanocrack was created by mechanical stretching/compression cycles.
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The tensile velocity was found to have a significant effect on the crack density.
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A low detection limit of 500 ppm of H2 in air was demonstrated.
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Narrow nanocracks (w: 55–100 nm) and high crack density provides enhanced sensing properties in air.