| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.44 |
| 발표분야 |
고분자 |
| 제목 |
Realization of Narrowband Blue-Selective Polymer Photodiodes with High Detectivity by Fullerene Doping on Dialkoxynaphthalene-based Conjugated Polymer |
| 초록 |
We here synthesized a dihexyloxynaphthalene-based conjugated polymer (PNa6-Th) to fabricate blue-selective polymer photodiode (PPD) with narrowband spectral response. The synthesized polymer was investigated in terms of optical, electrochemical, and thermal properties. PNa6-Th showed a blue-selective absorption with an absorption peak at ~430 nm and a wide optical band gap of ~2.5 eV. Planar heterojunction structure was used for PPD fabrication with PNa6-Th and ZnO as a blue-selective electron donor and non-absorbing acceptor, respectively. We introduced a minor amount of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) on the donor layer to boost the photodiode performance. The external quantum efficiency (EQE) was increased from 5.4% to 37.8% as a result of introduction of PCBM and the dark current values showed nearly constant. This increase of EQE resulted in high detectivity over 2.0 × 1012 cm∙Hz1/2/W at −1 V. |
| 저자 |
윤성원1, 하연희2, 권순기2, 김윤희2, 정대성3
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| 소속 |
1대구경북과학기술원(DGIST), 2경상대, 3대구경북과학기술원 |
| 키워드 |
고분자전자/에너지/광학재료 |
| E-Mail |
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| 원문파일 |
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