A durability study of carbon nanotube fiber based stretchable electronic devices under cyclic deformation. (November 2015)

• Record Type: Journal Article
• Authors: Yu, Jiali; Wang, Liyun; Lai, Xiaohan; Pei, Shaopeng; Zhuang, Zhongbin; Meng, Linghui; Huang, Yudong; Li, Qingwen; Lu, Weibang; Byun, Joon-Hyung; Oh, Youngseok; Yan, Yushan; Chou, Tsu-Wei
• Is Part Of: Carbon. Volume 94(2015)
• Page Start: 352
• Page End: 361
• Publication Date: 2015-11
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.07.009
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: In spite of the recent rapid growth in stretchable electronic device research, efforts have been mainly focused on material selection, device geometric design and short-term performance characterization. The present research focuses on the long-term durability of electromechanical and electrochemical performance of buckled carbon nanotube fibers based stretchable conductors and supercapacitors under cyclic deformation. The damage mode and damage evolution as a function of fatigue deformation are identified. After 10, 000 stretching-releasing cycles with mechanical deformation up to 40% strain, the conductivities of buckled dry spun and aerogel spun CNT fiber based stretchable conductors exhibit excellent stability and the resistances increase by only about 0.2% and 6%, respectively. The areal specific capacitances of buckled dry spun and aerogel spun CNT fiber based stretchable supercapacitors change, respectively, from 4.42 mF cm −2 to 3.60 mF cm −2, and from 8.16 mF cm −2 to 9.95 mF cm −2 at the scan rate of 50 mV s −1 after 10, 000 deformation cycles.