三芳基咪唑富勒烯吡咯烷衍生物的合成及在CdSe量子点敏化太阳能电池中的应用

Synthesis of Fulleropyrrolidine Derivatives with Aromatic Substituted Imidazoles and Their Application in CdSe-Quantum Dot Solar Cells

设计合成了2个三芳基咪唑类化合物Im(5)和Bn-Im(6),进一步通过1,3-偶极化反应合成了C60吡咯烷衍生物Im-C60(7)和Bn-Im-C60(8),采用FTIR,1H NMR,13C NMR和MALDI-TOF-MS等方法对其结构进行了表征.实验组装了7个太阳能电池,结构分别为FTO/TiO2/CdSe/Pt,FTO/TiO2/C60/Pt,FTO/TiO2/Im-C60/Pt,FTO/TiO2/Bn-Im-C60/Pt,FTO/TiO2/C60-CdSe/Pt,FTO/TiO2/Im-C60-CdSe/Pt和FTO/TiO2/Bn-Im-C60-CdSe/Pt,对其光电性能进行了表征.结果表明,与CdSe敏化太阳能电池相比,以Im-C60-CdSe和Bn-Im-C60-CdSe为敏化剂的电池效率分别增加了5.28%和40.08%.

Two novel aromatic substituted imidazole compounds including 4-（4,5-bis（3-nitrophenyl）-1H-imidazole-2-yl）-3,6-biacetyl-9-ethyl-carbazole（5） and 4-（1-benzyl-4,5-bis（3-nitrophenyl）-imidazol-2-yl） 3,6-biacetyl-9-ethyl-carbazole（6） were synthesized by the optimized Debus＇ method.Fulleropyrrolidine derivatives 7 and 8 were successfully synthesized by 1,3-dipolar cycloaddition.The structures of these moleculars were confirmed by FTIR,1H NMR,13C NMR and MALDI-TOF-MS.Seven solar cells,FTO/TiO2/CdSe/Pt,FTO/TiO2/C60/Pt,FTO/TiO2/Im-C60/Pt,FTO/TiO2/Bn-Im-C60/Pt,FTO/TiO2/C60-CdSe/Pt,FTO/TiO2/Im-C60-CdSe/Pt and FTO/TiO2/Bn-Im-C60-CdSe/Pt,were fabricated.The results show that the observed energy conversion efficiency with Im-C60-CdSe films and Bn-Im-C60-CdSe films increased by 5.28% and 40.08% compared with CdSe QDs sensitized solar cell,respectively.