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Conjugate spacer effect on molecular structures and absorption spectra of triphenylamine dyes for sensitized solar cells: Density functional theory calculations
The molecular structures and absorption spectra of triphenylamine dyes containing variable thiophene units as the spacers (TPA1–TPA3) were investigated by density functional theory (DFT) and timedependent DFT. The calculated results indicate that the strong conjugation is formed in the dyes and the length of conjugate bridge increases gradually with the increased thiophene spacers. The interfacia...
http://www.polymer.cn//ss/xujie/publicationsshow_5842.html |
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Substituent Effect on the p Linkers in Triphenylamine Dyes for Sensitized Solar Cells: A DFT/TDDFT Study
A series of metal-free organic donor–p bridge–acceptor dyes are studied computationally using density functional theory (DFT) and time-dependent DFT (TDDFT) approaches to explore their potential performances in dye-sensitized solar cells (DSSCs). Taking triphenylamine (TPA) and cyanoacrylic acid moieties as donor and acceptor units, respectively, the effects of different substituents of the p li...
http://www.polymer.cn//ss/xujie/publicationsshow_5328.html |
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Highly efficient unsymmetrical squaraines for panchromatic dye-sensitized solar cells: A computational study
The geometries, electronic structures and absorption spectra of two unsymmetrical squaraine dyes (SQ1 and SQ2) were theoretically investigated by using density functional theory (DFT) and time-dependent DFT (TD-DFT). The dye-(TiO2)9 nanocluster systems were also simulated to show the electronic coupling at the
interface. The results reveal that compared to SQ1, SQ2 with an electron-rich thiophene...
http://www.polymer.cn//ss/xujie/publicationsshow_4894.html |
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175. Carbon Nanotubes Bridged with Graphene Nanoribbons and Their Use in High-Efficiency Dye-Sensitized Solar Cells.
Through an easy solution process, we have created a novel structure consisting of CNTs bridged by R-GONRs. This material favors rapid charge transport among CNTs, resulting in high performance at the macroscopic scale. When used as counter electrodes, the resulting DSCs showed high energy conversion efficiencies of up to 8.23%. This work also provides a paradigmatic structural design for high...
http://www.polymer.cn//ss/liutianxi/publicationsshow_4516.html |
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Novel benzo[1,2-b:4,5-b’]dithiophene-benzothiadiazole derivatives with variable side chains for high performance solar cells
Low band gap copolymers were prepared by incorporating thiophene modified benzo[1,2-b:4,5-b’]dithiophene and alkyloxy or fluorine modified benzothiadiazole as donor and accepter units. These copolymers showed desired deep HOMO and LUMO levels allowing the high Voc and Jsc. PCEs of over 6% are demonstrated in solar cell studies indicating their promising photovoltaic application as donor mate...
http://www.polymer.cn//ss/pengqiang/publicationsshow_3252.html |
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139. Mesogens Mediated Self-Assembly in Applications of Bulk Heterojunction Solar Cells Based on a Conjugated Polymer with Narrow Band Gap.
The ability to control the molecular organization of electronically active liquid-crystalline polymer provides opportunities to develop easy-to-process yet highly ordered supramolecular systems in the field of photovoltaics. Here, we report a novel donor−acceptor type liquid-crystalline copolymer, poly{9,9-bis[6-(4′-cyanobiphenyloxy)hexyl]fluorene-alt-5,5-(4′,7′-di-2-thieny...
http://www.polymer.cn//ss/liutianxi/publicationsshow_2978.html |
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Efficient Bulk-Heterojunction Solar Cells Based on a Symmetrical D-pi-A-pi-D Organic Dye Molecule
作者: Xue LL (Xue, Lili)1, He JT (He, Jiating)1, Gu X (Gu, Xin)1, Yang ZF (Yang, Zhongfeng)1, Xu B (Xu, Bin)1, Tian WJ (Tian, Wenjing)1
来源出版物: JOURNAL OF PHYSICAL CHEMISTRY C 卷: 113 期: 29 页: 12911-12917 出版年: JUL 23 2009
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http://www.polymer.cn//ss/tianwenjing/publicationsshow_1316.html |
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Synthesis and characterization of poly(3-hexylthiophene)-block-polystyrene for photovoltaic device
关键字：polymer solar cell, small polydispersity (PDI), atom transfer radical polymerization (ATRP), polystyrene, polythiophene
The block copolymer，poly(3-hexylthiophene)-block-polystyrene (P3HT-b-PS) which can be used for highly efficient polymer solar cell was synthesized by Suzuki coupling reaction between P3HT and PS homopolymers. The regioregular P3HT and the PS we...
http://www.polymer.cn/research/dis_info11686 |
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Synthesis and characterization of poly(3-hexylthiophene)-block-polystyrene for photovoltaic device
关键字：polymer solar cell, small polydispersity (PDI), atom transfer radical polymerization (ATRP), polystyrene, polythiophene
The block copolymer，poly(3-hexylthiophene)-block-polystyrene (P3HT-b-PS) which can be used for highly efficient polymer solar cell was synthesized by Suzuki coupling reaction between P3HT and PS homopolymers. The regioregular P3HT and the PS we...
http://www.polymer.cn/research/dis_info11686 |
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Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers.
This work identifies the dithiafulvenyl unit as an excellent electron donor for constructing D?π–A-type metal-free organic sensitizers of dye-sensitized solar cells (DSCs). Synthesized and tested are three sensitizers all with this donor and a cyanoacrylic acid acceptor but differing in the phenyl (DTF-C1), biphenyl (DTF-C2), and phenyl–thiopheneyl–phenyl π-bridges (DTF-C3). Devices based o...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10220.html |
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