ICCAS OpenIR
High-Yield Synthesis and Electrochemical and Photovoltaic Properties of Indene-C-70 Bisadduct
He, Youjun; Zhao, Guangjin; Peng, Bo; Li, Yongfang
2010-10-08
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Volume20Issue:19Pages:3383-3389
Abstract[6,6]-Phenyl-C-61-butyric acid methyl ester (PC60BM) is the widely used acceptor material in polymer solar cells (PSCs). Nevertheless, the low LUMO energy level and weak absorption in visible region are its two weak points. For enhancing the solar light harvest, the soluble C-70 derivative PC70BM has been used as acceptor instead of PC60BM in high efficiency PSCs in recent years. But, the LUMO level of PC70BM is the same as that of PC60BM, which is too low for the PSCs based on the polymer donors with higher HOMO level, such as poly (3-hexylthiophene) (P3HT). Here, a new soluble C-70 derivative, indene-C-70 bisadduct (IC(70)BA), is synthesized with high yield of 58% by a one-pot reaction of indene and C-70 at 180 degrees C for 72 h. The electrochemical properties and electronic energy levels of the fullerene derivatives are measured by cyclic voltammetry. The LUMO energy level of IC(70)BA is 0.19 eV higher than that of PC70BM. The PSC based on P3HT with IC(70)BA as acceptor shows a higher V-oc of 0.84 V and higher power conversion efficiency (PCE) of 5.64%, while the PSC based on P3HT/PC60BM and P3HT/PC70BM displays V-oc of 0.59 V and 0.58 V, and PCE of 3.55% and 3.96%, respectively, under the illumination of AM1.5G, 100 mW cm(-2). The results indicate that IC(70)BA is an excellent acceptor for the P3HT-based PSCs and could be a promising new acceptor instead of PC70BM for the high performance PSCs based on narrow bandgap conjugated polymer donor.
DOI10.1002/adfm.201001122
Indexed BySCI
Language英语
WOS IDWOS:000283386400023
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:243[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70662
Collection中国科学院化学研究所
Corresponding AuthorHe, Youjun
AffiliationChinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
He, Youjun,Zhao, Guangjin,Peng, Bo,et al. High-Yield Synthesis and Electrochemical and Photovoltaic Properties of Indene-C-70 Bisadduct[J]. ADVANCED FUNCTIONAL MATERIALS,2010,20(19):3383-3389.
APA He, Youjun,Zhao, Guangjin,Peng, Bo,&Li, Yongfang.(2010).High-Yield Synthesis and Electrochemical and Photovoltaic Properties of Indene-C-70 Bisadduct.ADVANCED FUNCTIONAL MATERIALS,20(19),3383-3389.
MLA He, Youjun,et al."High-Yield Synthesis and Electrochemical and Photovoltaic Properties of Indene-C-70 Bisadduct".ADVANCED FUNCTIONAL MATERIALS 20.19(2010):3383-3389.
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