| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터) |
| 권호 |
42권 2호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Probing Photo-Degradation in Bulk-Heterojunction Thin Films via Electron Tomography |
| 초록 |
In organic solar cells (OSCs), controlling morphology of the active layer based on the thin-films can be a key factor to determine the device performance, which strongly affects the charge separation and transport. With improvement of OSC efficiency, the air and thermal stability has been recognized as one of the critical problems for commercialization. However, the direct visualization for interpretation of morphological transition of active layer against external stress has been challenging due to the complex organization of bulk-heterojunction materials and the requirement of high-resolved images. Here, we investigated the morphological transition behavior of a bulk-heterojunction (BHJ) of active layer made of p-n polymer materials by light irradiation using TEM tomography. The chemical changes further were monitored by Fourier-transform infrared (FT-IR) spectroscopy, UV−vis absorbance, with morphological changes. |
| 저자 |
진선미1, 남진우1, 안형주2, 송창은3, 이은지1
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| 소속 |
1충남대, 2포항가속기(연), 3한국화학(연) |
| 키워드 |
stability; morphological transition; electron tomography; active layer
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| E-Mail |
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