Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
ACS Nano. 2012 Jun 26;6(6):4671-7. doi: 10.1021/nn301851k. Epub 2012 Jun 5.
P3HT/PC(61)BM bulk heterojunction solar cells containing varying amounts of different 6,6-dicyanofulvenes (DCFs) were fabricated and characterized. Photovoltaic cells containing ternary mixtures of P3HT, 0.5 equiv of PC(61)BM, and 0.5 equiv of 1,4-dimethyl-2,3-diphenyl-DCF (by weight) displayed average power conversion efficiencies of up to 4.5% under AM 1.5 irradiation, compared to 2.9% for reference P3HT-PC(61)BM solar cells. It was found that 1,4-dimethyl-2,3-diphenyl-6,6-dicyanofulvene could replace up to 50 wt % of PC(61)BM in 1:1 P3HT-PC(61)BM solar cells without sacrificing device performance.
制备并表征了含有不同量的不同 6,6-二氰基芴（DCF）的 P3HT/PC（61）BM 本体异质结太阳能电池。含有 P3HT、0.5 当量的 PC（61）BM 和 0.5 当量的 1,4-二甲基-2,3-二苯基-DCF（按重量计）的三元混合物的光伏电池在 AM 1.5 照射下的平均功率转换效率高达 4.5%，而参考 P3HT-PC（61）BM 太阳能电池为 2.9%。结果发现，1,4-二甲基-2,3-二苯基-6,6-二氰基芴可以替代 1:1 P3HT-PC（61）BM 太阳能电池中高达 50wt%的 PC（61）BM，而不会牺牲器件性能。
