Efficiency enhancement from [60]fulleropyrrolidine-based polymer solar cells through N-substitution manipulation. (October 2015)

• Record Type: Journal Article
• Authors: Liang, Yulan; Hao, Yajuan; Liu, Xiaodong; Feng, Lai; Chen, Muzi; Tang, Qiangqiang; Chen, Ning; Tang, Mingliu; Sun, Bingbing; Zhou, Yi; Song, Bo
• Is Part Of: Carbon. Volume 92(2015)
• Page Start: 185
• Page End: 192
• Publication Date: 2015-10
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.04.011
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: A series of fulleropyrrolidine derivatives (FP x, x = 1–8) with alternating N-phenyl or N-methyl group were prepared as acceptors for polymer solar cells (PSCs) with the purpose of investigating the effect of N-substitutions on the photovoltaic properties of fullerene materials. More importantly, the morphology studies by means of atomic force microscopy (AFM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and space charge limited current (SCLC) measurements revealed that FP1 with N-phenyl group possessed not only appropriate miscibility with P3HT but also high electron mobility, which may account for its optimal photovoltaic properties.