期刊
ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 2, 页码 1065-1071出版社
AMER CHEMICAL SOC
DOI: 10.1021/am2016975
关键词
fullerene; photovoltaic; solar cell; C-60; C-70
资金
- National Nature Science Foundation of China [21031006, 10874187, 20831160507]
- NSFC-DFG [TRR61]
- National Basic Research 973 Program of China
- WUT [2011-II-009]
- State Key Lab of Advanced Technology for Materials Synthesis and Processing [2009-PY-1]
Four new [6,6]-phenyl-C-61 and C-71 butylsaure n-dibutyl amides (PCBDBA) with mono- and bis-adduction on C-60 and C-70 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 C-60 derivative and 1.90% for C-70 derivative, respectively, which are close to PCBM's 2.43%. The results revealed the structure function relationship among the mono adduct and bisadduct derivatives of C-60 and C-70 with the BHJ-OPV performance.
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