| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Development of High Detectivity Blue-Selective Polymer Photodiode with Dialkoxynaphthalene-based Conjugated Polymer by Fullerene Doping |
| 초록 |
To realize narrowband blue-selective polymer photodiode, we synthesized a dihexyloxynaphthalenebased conjugated polymer (PNa6-Th) and the polymer was investigated in terms of optical, electrochemical, and thermal properties. PNa6-Th showed a narrowband blue-selective absorption with a full width at half-maximum of ~100 nm and a wide optical band gap of ~2.52 eV. planar heterojunction structure was constructed for photodiode fabrication and PNa6-Th and ZnO was used as polymer donor and nonabsorbing acceptor, respectively. To improve the external quantum efficiency of the fabricated photodiode, a small amount of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was introduced on the donor layer. By applying PCBM to PNa6-Th layer, external quantum efficiency was boosted from 5.4% for pristine device to 37.8% for PCBM-added device, without sacrificing dark current. The increase of external quantum efficiency leads to high specific detectivity over 2.0 × 1012 Jones at −1 V. |
| 저자 |
윤성원1, 하연희2, 권순기2, 김윤희2, 정대성1
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| 소속 |
1대구경북과학기술원, 2경상대 |
| 키워드 |
High detectivity; blue-selective; polymer photodiode; fullerene
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| E-Mail |
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