کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5218952 | 1383342 | 2012 | 5 صفحه PDF | دانلود رایگان |
We report the synthesis, characterization, and electrochemical properties of bis-PCBM dyad containing 4-nitro-α-cyanostilbene units for potential usage in efficient organic solar cells. The bis-PCBM dyad is fully characterized by NMR, UV-vis absorption, and electrochemical cyclic voltammetry. It is found that the presence of 4-nitro-α-cyanostilbenes affects the cyclic voltammetry and absorption spectrum very little. Whereas the 56 Ï-electron system in the bis-functionalized fullerene cage significantly influences on the electrochemical and photophysical properties, resulting in up-shifted LUMO and wider absorption compared to PCBM. Although the efficiencies of both conventional and the inverted cells based on P3HT/bis-PCBM dyad as the preliminary results are low in comparison with the optimized high-performance PSCs, it is believed that the efficiency would be improved through successful device optimization of P3HT/bis-PCBM dyad cells.
Journal: Tetrahedron - Volume 68, Issue 33, 19 August 2012, Pages 6696-6700