| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Graphene-Au nanoparticle composite counter electrodes for cobalt redox mediator based dye-sensitized solar cells |
| 초록 |
Few layered graphene (G) with different loading of Au nanoparticles (Au NPs) composite counter electrodes were prepared by simple solution method followed by a post thermal treatment at 800 °C under argon atmosphere. Excellent catalytic integrity and high optical transmittance of ~79.9 % were observed. Electrochemical impedance spectroscopy (EIS) revealed the lower charge transfer resistance (Rct) of G-Au NPs based electrodes compared to that of reference Pt electrodes. Graphene composite electrode with 30 nM Au NPs showed 6.55% higher conversion efficiency (η = 1.79%) and 200 mV higher open circuit voltage (0.60 V) compared to the cells fabricated with standard Pt electrodes. |
| 저자 |
Mohammad Al-Mamun1, 정현옥1, 고영희1, 성영은2, 김성룡1
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| 소속 |
1한국교통대, 2서울대 |
| 키워드 |
Graphene; Gold nanoparticles; Conunter electrode; EIS; DSSCs
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| E-Mail |
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