Porphyrin-dithienothiophene pi-conjugated copolymers: Synthesis and their applications in field-effect transistors and solar cells

doi:10.1021/ma801407u

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	Porphyrin-dithienothiophene pi-conjugated copolymers: Synthesis and their applications in field-effect transistors and solar cells
	Huang, Xuebin 2,3; Zhu, Chunli 2,3; Zhang, Shiming 2,4; Li, Weiwei 2,4; Guo, Yunlong 2,4; Zhan, Xiaowei 1,2; Liu, Yunqi 2; Bo, Zhishan 2
刊名	MACROMOLECULES
	2008-10-14
卷号	41 期号:19 页码:6895-6902
ISSN号	0024-9297
DOI	10.1021/ma801407u
英文摘要	Soluble conjugated alternating porphyrin-dithienothiophene copolymers-single-bond linked (1) and triple-bond linked (IIa and IIb)-were synthesized by palladium(0)-catalyzed Stille and Sonagashira coupling reactions, respectively. The thermal, electrochemical, optical, charge transport, and photovoltaic properties of these copolymers were examined; the effect of the triple bond was studied. I exhibits onset decomposition temperature (T-d) of 410 degrees C and glass-transition temperature (T-g) of 180 degrees C, higher than those of IIb (T-d, 330 degrees C; T-g, 130 degrees C). The absorption spectrum of I in thin film exhibits a sharp Soret band at 450 nm and two weak Q-bands at 563-619 nm, while IIb exhibits a sharp Soret band at 491 nm and a strong Q-band at 760 nm. The emission maxima of I and IIb in solution are located at 642 and 722 nm respectively. IIb is electrochemically active in both the oxidation and reduction regions, while I shows only oxidation peak. The field-effect hole mobilities as high as 2.1 x 10(-4) cm(2) V-1 s(-1) were obtained for these copolymers. Polymer solar cells (PSCs) were fabricated based on the blend of the polymers and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM). The power conversion efficiency (PCE) of 0.3% was achieved under AM 1.5, 100 mW/cm(2) for the PSC using IIb:PCBM (1:3, w/w) as active layer. The PCE of the PSC based on IIb:PCBM (1:3, w/w) is double that based on I:PCBM (1:2, w/w), consistent with that IIb exhibits stronger Q-band absorption and higher mobility at room temperature.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000259859800009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/64499]
专题	中国科学院化学研究所
通讯作者	Zhan, Xiaowei
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 3.Beijing Inst Technol, Dept Chem, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Huang, Xuebin,Zhu, Chunli,Zhang, Shiming,et al. Porphyrin-dithienothiophene pi-conjugated copolymers: Synthesis and their applications in field-effect transistors and solar cells[J]. MACROMOLECULES,2008,41(19):6895-6902.
APA	Huang, Xuebin.,Zhu, Chunli.,Zhang, Shiming.,Li, Weiwei.,Guo, Yunlong.,...&Bo, Zhishan.(2008).Porphyrin-dithienothiophene pi-conjugated copolymers: Synthesis and their applications in field-effect transistors and solar cells.MACROMOLECULES,41(19),6895-6902.
MLA	Huang, Xuebin,et al."Porphyrin-dithienothiophene pi-conjugated copolymers: Synthesis and their applications in field-effect transistors and solar cells".MACROMOLECULES 41.19(2008):6895-6902.