| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Self-powered skin-conformal ultra-flexible electronics via nano-grating-patterned organic photovoltaics |
| 초록 |
Conformal photovoltaics play important role in the development of compact, portable, and sustainable power source for on-skin electronics. Their direct integration with functional electronics opens unprecedented possibilities for microelectronics to be operated without demand of external bulky and rigid power supplies. Here, we report double-grating-patterned high performance organic photovoltaics for self-powered conformal cardiograph. Cumulative solar gains by multiple nano-grating patterns in the photoactive and charge transporting layers facilitate ultra-thin (3-m-thick) photovoltaic with exceptional high-power conversion efficiency exceeding 10.5 % at free-standing condition and excellent PCE stability of 7.3 % after over 900 repetitive bending cycles at 67 % compression. Finally, we demonstrate self-powered conformal cardiograph, enabling reliable electrocardiogram signal detection through conformal adherence to the flexuous skin and tissue surface. |
| 저자 |
박성준1, 허수원2, 이원령3, Keisuke Tajima2, Kenjiro Fukuda2, Takao Someya4
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| 소속 |
1삼성전자 종합기술원, 2RIKEN, 3KAIST, 4The Univ. of Tokyo |
| 키워드 |
self-powered electronics; stretchable electronics; organic photovoltaics
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| E-Mail |
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