Supplementary Materials

Harvesting electrical energy from carbon nanotube yarn twist

Shi Hyeong Kim, Carter S. Haines, Na Li, Keon Jung Kim, Tae Jin Mun, Changsoon Choi, Jiangtao Di, Young Jun Oh, Juan Pablo Oviedo, Julia Bykova, Shaoli Fang, Nan Jiang, Zunfeng Liu, Run Wang, Prashant Kumar, Rui Qiao, Shashank Priya, Kyeongjae Cho, Moon Kim, Matthew Steven Lucas, Lawrence F. Drummy, Benji Maruyama, Dong Youn Lee, Xavier Lepró, Enlai Gao, Dawood Albarq, Raquel Ovalle-Robles, Seon Jeong Kim, Ray H. Baughman

Materials/Methods, Supplementary Text, Tables, Figures, and/or References

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  • Materials and Methods 
  • Supplementary Text 
  • Figs. S1 to S40 
  • Tables S1 and S2 
  • Captions for Movies S1 and S2 
  • References 

Images, Video, and Other Media

Movie S1
Application of a twistron harvester for monitoring breathing. A pair of homochiral and heterochiral carbon nanotube harvester yarns were sewn into a shirt, and overcoated with gel electrolyte of 10 wt% PVA in 0.1M HCl. During breathing, the sensor stretched by 10%, producing 16 mV of voltage
Movie S2
Stretching a coiled CNT yarn (weighing 19.2 mg) to 13% strain at 0.5 Hz, using a 20% duty square wave, powers a voltage boost converter (fig. S40), which enables the harvester yarn to drive a green light-emitting diode.
Correction (28 September 2017): In the original file, fig. S18 was a duplicate of fig. S3. This updated file contains the correct fig. S18.
The original version is accessible here.