Flexible piezotronic strain sensor

doi:10.1021/nl802367t

CORC > 北京大学 > 工学院

	Flexible piezotronic strain sensor
	Zhou, Jun ; Gu, Yudong ; Fei, Peng ; Mai, Wenjie ; Gao, Yifan ; Yang, Rusen ; Bao, Gang ; Wang, Zhong Lin
刊名	nano letters
	2008
关键词	PRESSURE-DEPENDENCE SILICON NANOWIRES BARRIER HEIGHT ZNO NANOWIRE NANOBELTS ARRAYS GAN
DOI	10.1021/nl802367t
英文摘要	Strain sensors based on individual ZnO piezoelectric fine-wires (PFWs; nanowires, microwires) have been fabricated by a simple, reliable, and cost-effective technique. The electromechanical sensor device consists of a single electrically connected PFW that is placed on the outer surface of a flexible polystyrene (PS) substrate and bonded at its two ends. The entire device is fully packaged by a polydimethylsiloxane (PDMS) thin layer. The PFW has Schottky contacts at its two ends but with distinctly different barrier heights. The I-V characteristic is highly sensitive to strain mainly due to the change in Schottky barrier height (SBH), which scales linear with strain. The change in SBH is suggested owing to the strain induced band structure change and piezoelectric effect. The experimental data can be well-described by the thermionic emission-diffusion model. A gauge factor of as high as 1250 has been demonstrated, which is 25% higher than the best gauge factor demonstrated for carbon nanotubes. The strain sensor developed here has applications in strain and stress measurements in cell biology, biomedical sciences, MEMS devices, structure monitoring, and more.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000259140200076&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 369; ARTICLE; 9; 3035-3040; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/262624]
专题	工学院
推荐引用方式 GB/T 7714	Zhou, Jun,Gu, Yudong,Fei, Peng,et al. Flexible piezotronic strain sensor[J]. nano letters,2008.
APA	Zhou, Jun.,Gu, Yudong.,Fei, Peng.,Mai, Wenjie.,Gao, Yifan.,...&Wang, Zhong Lin.(2008).Flexible piezotronic strain sensor.nano letters.
MLA	Zhou, Jun,et al."Flexible piezotronic strain sensor".nano letters (2008).