Synthesis and Photovoltaic Properties of Novel Monoadducts and Bisadducts Based on Amide Methanofullerene

详细信息    查看全文

• 作者：Chao Liu ; Shengqiang Xiao ; Xiangping Shu ; Yongjun Li ; Liang Xu ; Taifeng Liu ; Yanwen Yu ; Liang Zhang ; Huibiao Liu ; Yuliang Li
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2012
• 出版时间：February 22, 2012
• 年：2012
• 卷：4
• 期：2
• 页码：1065-1071
• 全文大小：526K
• 年卷期：v.4,no.2(February 22, 2012)
• ISSN：1944-8252

文摘

Four new [6,6]-phenyl-C₆₁ and C₇₁ butylsaure n-dibutyl amides (PCBDBA) with mono- and bis-adduction on C₆₀ and C₇₀ cages, respectively, have been synthesized as models to study the effect of the mono- and bis-adduction on fullerene cages on device performance when used as electron acceptors with the donor of regioregular P3HT in bulkheterojunction organic photovoltaics (BHJ-OPV). The optoelectronic, electrochemistry, and photovoltaic properties of these mono- and bis-products were fully investigated. The best device performance of these fullerene derivatives were obtained from the two monoadducts with power conversion efficiency (PCE) of 1.77% for C₆₀ derivative and 1.90% for C₇₀ derivative, respectively, which are close to PCBM鈥檚 2.43%. The results revealed the structure鈥揻unction relationship among the monoadduct and bisadduct derivatives of C₆₀ and C₇₀ with the BHJ-OPV performance.

Keywords:

fullerene; photovoltaic; solar cell; C₆₀; C₇₀