| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 |
24권 2호, p.1500 |
| 발표분야 |
생물화공(Biochemical Engineering) |
| 제목 |
A layer-by-layer assembly method using pen lithography for development of flexible microsupercapacitors with graphene flake/PEDOT nanocomposite electrodes |
| 초록 |
Flexible microsupercapacitor(MSC) has been widely investigated because of high demands for potable and wearable electronic devices. Herein, we demonstrate novel concepts for graphene flke/polyethylendioxyhiophene(PEDOT) with layer-by-layer assembled MSC using a pen lithography. The pen lithography is considered as promising technique for flexible MSC because of its simple, variable and low-cost features. In this study, the flexible MSC shows high energy density, power density and volumetric capacitance compared to each layers of graphene flake/PEDOT composite MSCs. As a results, the three layers of graphene flake/PEDOT composite MSC enhanced the maximum energy density of 1.5mW h cm-3, a power density of 141W cm-3, and a volumetric capacitance of 7.7 F cm-3 at a current density of 0.02A cm-3. It also shows excellent cycling stability with a capacitance retention of 88% after 2500 times repeated charge-discharge cycles. For confirmed flexibility, the flexible MSC shows good durability with a capacitance change less than about 3.9%. |
| 저자 |
김형렬1, 이희욱1, 이주훈1, 이수권1, 유하영2, 박철환3, 전영상1, 김승욱1
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| 소속 |
1고려대, 2상명대, 3광운대 |
| 키워드 |
생물화공 |
| E-Mail |
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| 원문파일 |
초록 보기 |
