Synthesis and Characterization of (benzyl-n-alkyl)(1,2-methanofullerene C60)-61,61-dicarboxylate
| Autor: | Hsin-Han Tsai, 蔡欣翰 |
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| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 Organic solar cells using the mixture of [6,6]-phenyl C61-butyric acid methyl ester (PCBM) and poly(3-hexylthiophene) (P3HT) as photoactive material have attract considerable interests in recent years because a power conversion efficiency around 5 % has been demonstrated by carefully tuning the fabrication process. In this study, a serious of C60 derivatives, (benzyl-n-butyl)(1,2-methanofullerene C60)-61,61- dicarboxylate (BBMDC), (benzyl-n-hexyl) (1,2-methanofullerene C60)-61,61- dicarboxylate (BHMDC), (benzzyl-n-octyl) (1,2-methanofullerene C60)-61,61- dicarboxylate (BOMDC) and (benzyl-n-dodecyl) (1,2-methanofullerene C60)-61,61- dicarboxylate (BDMDC), were synthesized by the Bingel cyclopropanation of malonic ester-bearing molecules and C60 cage. The products were characterized using 1H NMR, 13C NMR, UV-vis, EA, MALDI TOF-MS and cyclic voltammetry (CV) techniques. The new C60 derivatives possess much better solubility than PCBM in many organic solvents such as dichloromethane, toluene, chlorobenzene and odichlorobenzene (o-DCB), allowing the use of higher concentration of P3HT and C60 derivative in the cell fabrication process. Moreover, the morphology of the photoactive blend of P3HT and these new C60 derivatives were examined by atomic force microscopy AFM. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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