Facile syntheses of N-alkylaziridino[60]fullerenes and their application in polymer solar cells

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• 作者：Yang Liu ; Xiaoyan Du ; Jiamin Cao ; Wei Zhang ; Shan Chen ; Zuo Xiao ; Xuediao Cai ; Qiqun Zuo ; Liming Ding
• 关键词：Fullerene ; Aziridination ; Energy levels ; Polymer solar cells
• 刊名：Synthetic Metals
• 出版年：2012
• 出版时间：August, 2012
• 年：2012
• 卷：162
• 期：13-14
• 页码：1271-1278
• 全文大小：1198 K

文摘

N-alkylaziridino[60]fullerenes (NAAFs) were synthesized through the reaction of C₆₀ and primary alkylamines with the aid of di(acetoxyiodo)benzene (DIB) and I₂ under mild conditions. The NAAFs exhibit similar LUMO energy levels (?3.82 eV to ?3.89 eV), which is comparable with PC₆₁BM. The NAAFs are thermally stable with the decomposition temperature over 230 ¡ãC and show good solubility in common organic solvents. Polymer solar cells based on N-phenylethylaziridino[60]fullerene/P3HT (0.5:1, w/w) demonstrated a good power conversion efficiency of 2.92 % under the illumination of 86 mW/cm². The solar cells kept good performance (PCE = 2.71 % ) even with a very low fullerene content (N-phenylethylaziridino[60]fullerene/P3HT = 0.3:1, w/w).