| 학회 | 한국화학공학회 |
| 학술대회 | 2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 | 28권 1호, p.1074 |
| 발표분야 | [주제 12] 화학공학일반(부문위원회 발표) |
| 제목 | Flexible electronic devices fabricated with zinc oxide nanoparticles–multi charged conjugated electrolytes thin films |
| 초록 | We report that the flexibility of a zinc oxide nanoparticle (ZnO NP) thin film is improved by ionic interaction between ZnO NPs and multi-charged conjugated electrolytes. Intermixing of ZnO NPs (10~15 nm in diameter) and conjugated electrolytes, diphenylfluorene pyridinium bromide derivative (PFP:Br), enables the bromide anions to coordinate the zinc cations on the ZnO NP surfaces. The multi-charged cations with the ammonium-functionalized side chains can hold the bromide-chelated ZnO NPs adjacent to the ammonium cations by ionic interaction of N+–Br– ion pairs, confirmed by X-ray photoelectron spectroscopy (XPS) measurements. As a result, the 500-nm-thick ZnO NP–PFP:Br thin films show improved flexibility with a crack onset bending radius as low as 3 mm, compared to the ZnO NP thin films. Our results provide a facile strategy to improve the mechanical properties of the ZnO NP thin films and will facilitate the development of highly reliable flexible organic optoelectronic devices. Keywords: flexibility, ionic interaction, multi-charged conjugated electrolytes, zinc oxide nanoparticle |
| 저자 | 변희경1, 송혜빈2, 황혜지1, 신혜린1, 이성호2, 이병훈1 |
| 소속 | 1이화여자대, 2대구대 |
| 키워드 | 고분자(Polymer) |
| 원문파일 | 초록 보기 |
