| 학회 | 한국재료학회 |
| 학술대회 | 2012년 봄 (05/17 ~ 05/18, 무주덕유산리조트) |
| 권호 | 18권 1호 |
| 발표분야 | C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 | Effects of Hole Transport Layer Using Graphene on Efficiency of Organic Solar Cells |
| 초록 | Organic solar cells have the advantage of simple processing at relatively low temperature, a low coat manufacturing process, light weight, and its flexible large area application Therefore, organic solar cells are expected to be used as the next generation photovoltaic. In order to improve the efficiency, stability and utility of organic solar cells has been many studied. One way to improve the efficiency of organic solar cells is used as hole transport interface layer between ITO and active layer. Currently used typical hole transport interface layers is poly(3,4-ethylenedioxyhiophene): poly(styrenesulfonate) (PEDOT:PSS). However, PEDOT:PSS has several problems including high acidity, hygroscopic properties, and inhomogeneous electrical properties, resulting in poor long-term stability. In this study, we focused on graphene for the replacement of PEDOT;PSS. We fabricated organic solar cells using a poly(3-hexythiophene) (P3HT) and methanofullerene(6,6)-phenyl C61 butyric acid methyl ester (PCBM) active layer for the electron donor and acceptor materials, respectively. The active layer was spin-coated onto substrates with hole transport interface layer. Hole transport interface layers were prepared by dispersed graphene in different solvent such as purified water, methanol, monochlorobenzene, dichlorobenzene, and toluene. The effects of hole transport interface layer by using solution-processed graphene on the performance of organic solar cells were investigated. |
| 저자 | Seung-Ho Kim1, Kun Ho Kim2, Ho Jung Chang1 |
| 소속 | 1Department of Electronic Engineering, 2Dankook Univ. |
| 키워드 | Organic Solar Cells; Interface Layer; Graphene; Solution-Processing |
