Synthesis and photovoltaic properties of alternating conjugated polymers derived from indolo[3,2-b]carbazole and thiophene/thieno[3,2-b]thiophene-cored benzoselenadiazole

被引：0
作者：
Caixia Yang
Bin Li
Junfeng Tong
Yangjun Xia
机构：
[1] Northwest Normal University,College of Chemistry and Chemical Engineering
[2] Lanzhou Jiaotong University,Key Laboratory of Optoelectronic Technology and Intelligent Control of Ministry Education
来源：
Polymer Science Series A | 2011年 / 53卷
关键词：
Polymer Science Series; Carbazole; Power Conversion Efficien; Thermal Gravimetric Analysis; ODCB;
D O I：
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学科分类号：
摘要：
Two alternating narrow band gap (NBG) copolymers derived from 5,11-di(N-9-heptadecanyl)-indolo[3,2-b]carbazole (ICZ) and 4,7-di(thien-2-yl)-2′,1′,3′-benzoselenadiazole (DSeBT) or 4,7-di(thieno[3,2-b]thien-2-yl)-2′,1′,3′-benzoselenadiazole (DTSeBT), were synthesized and named PICZ-DSeBT and PICZ-DTSeBT, respectively. The PICZ-DSeBT shows good solubility in common organic solvent, and the PICZ-DTSeBT is soluble in hot o-dichlorobenzene (ODCB) and not good soluble in chloroform, toluene etc. The chemical structure, molecular weight and fundamental physical properties of the copolymers were characterized by 1H NMR, gel permeation chromatography (GPC), cyclic voltammetry (CV), thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) etc. Potential application of the copolymers to be employed as electron donor material and PC61BM ([6,6]-phenyl-C61 butyric acid methyl ester) for photovoltaic solar cells (PSCs), were investigated. PSCs based on the blends of PICZ-DSeBT/PC61BM (w: w; 1: 2) or PICZ-DTSeBT/PC61BM (w: w; 1: 2) with devices configuration as ITO/PEDOT: PSS/blend/Al, show the power conversion efficiencies (PCEs) of 1.06% and 1.52%, with the open circuit voltage (Voc) of 0.75 V and 0.70 V, short circuit current densities (Jsc) of 3.45 mA/cm2 and 5.30 mA/cm2 under an AM1.5 simulator (100 mW/cm2) and the photocurrent response on-set wavelength extending up to 760 nm and 800 nm, respectively. It indicates that the NBG copolymers are viable electron donor materials for PSCs.
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页码：469 / 479
页数：10
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共 88 条
  • [1] Sariciftci N. S.(1992)undefined Science (Washington, D. C.) 258 1474-undefined
  • [2] Smilowitz L.(1998)undefined Adv. Mater. (Weinheim, Fed. Repub. Ger.) 10 1431-undefined
  • [3] Heeger A. J.(2003)undefined Angew. Chem. Int. Ed. Engl. 42 3371-undefined
  • [4] Wudl F.(2005)undefined Macromolecules 38 5359-undefined
  • [5] Yu G.(2005)undefined Nature Mater. 4 864-undefined
  • [6] Wang J.(2006)undefined J. Am. Chem. Soc. 128 4911-undefined
  • [7] McElvain J.(2008)undefined J. Am. Chem. Soc. 130 16144-undefined
  • [8] Heeger A.J.(2006)undefined Adv. Mater. (Weinheim, Fed. Repub. Ger.) 18 2884-undefined
  • [9] Wienk M. M.(2003)undefined Adv. Mater. (Weinheim, Fed. Repub. Ger.) 15 988-undefined
  • [10] Kroon J. M.(2005)undefined Macromolecules 38 2253-undefined
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