| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터) |
| 권호 |
34권 1호 |
| 발표분야 |
신재생에너지 기술현황(분자전자 부문위원회) |
| 제목 |
Effect of Solubility of Annealing Solvents on Performance of Poly(3-hexylthiophene)/Methanofullerene Solar Cells |
| 초록 |
The effect of the solubility of the annealing solvent on the performance of P3HT:C60PCBM solar cells is studied. The Jsc and the FF increase remarkably, regardless of the type of annealing solvent, whereas a reduction of the Voc is observed after solvent annealing. Interestingly, both the value of Jsc and the PCE are higher for the poor-solvent-annealed devices than for the good-solvent-annealed ones. A good solvent vapor induces better self-organization of P3HT than a poor solvent vapor. However, the exciton loss increases due to excessive phase separation. A study of the space-charge-limited current reveals no significant differences between the carrier mobilities of good- and poor-solvent-annealed devices. These results indicate that the higher Jsc and PCE values obtained for the poor-solvent-annealed devices can be attributed to the optimized phase separation of the active layers, which induces balanced carrier mobility and minimum exciton loss. |
| 저자 |
박종환, 김종수, 이지황, 이위형, 심치영, 심명선, 조길원
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| 소속 |
포항공대 |
| 키워드 |
Organic Solar Cell; P3HT; PCBM; Solvent Annealing; Solubility
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| E-Mail |
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