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Advanced Materials, 2018, 30, 1703005，Ternary Nonfullerene Polymer Solar Cells with 12.16% Efficiency by Introducing One Acceptor with Cascading Energy Level and Complementary Absorption
A novel small-molecule acceptor, (2,2′-((5E,5′E)-5,5′-((5,5′-(4,4,9,9-tetrakis(5-
hexylthiophen-2-yl)-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-2,7-diyl)
bis(4-(2-ethylhexyl)thiophene-5,2-diyl))bis(methanylylidene)) bis(3-hexyl-
4-oxothiazolidine-5,2-diylidene))dimalononitrile (ITCN), end-capped with
electron-deficient 2-(3-hexyl-4-oxothiazolidin-2-ylidene)malononitrile groups,
is desig...
http://www.polymer.cn//ss/geziyi/publicationsshow_12335.html |
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High efficiency organic solar cells based on amorphous electron-donating polymer and modified fullerene acceptor
The current manuscript examines the structure and property relationship of amorphous conjugated polymer based bulk heterojunction solar cells. Solvent vapor annealing (SVA) is used to optimize the morphology. It is seen that the structure order of the blended thin film does not change but phase separation becomes prominent. The space charge limited current and admittance spectroscopy reveals that ...
http://www.polymer.cn//ss/zhaoxuebo/publicationsshow_12278.html |
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[J Mater Chem A]Indacenodithiophene: A Promising Building Block for High Performance Polymer Solar Cells
Harvesting energy directly from sunlight using photovoltaic technology has become an essential component of future global energy production. Although silicon-based inorganic materials have still played a dominant role in the market, problems for inorganic materials-based solar cells mainly lie in (1) high cost of production and technical difficulties in the fabrication of large-ar...
http://www.polymer.cn//ss/gujunwei/publicationsshow_10483.html |
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Dithiafulvene-based organic sensitizers using pyridine as the acceptor for dye-sensitized solar cells
Three dithiafulvene-based metal-free organic sensitizers all using pyridine as the acceptor but with different π-bridges of phenyl (DTF-Py1), thienyl (DTF-Py2) and phenyl-thienyl (DTF-Py3) have been designed, synthesized and used as photosensitizers for dye-sensitized solar cells (DSCs). Introducing thienyl unit into the π-bridge, as well as extension of the π-bridge can dramatically improve th...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10246.html |
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Plasmonic enhanced dye-sensitized solar cells with self-assembly gold-TiO2@core–shell nanoislands.
Decorating TiO2 photoanode of dye-sensitized solar cell (DSSC) with silver or gold nanoparticles has been shown to be an effective approach for enhancing device performance via the plasmonic effects. Here, we show for the first time that the same approach can be adopted simultaneously for both the photoanode and the counter-electrode of a DSSC but operates with different enhancement mechanism. I...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10213.html |
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Theoretical design of push-pull porphyrin dyes with π-bridge modification for dye-sensitized solar cells
A series of new D-π-A porphyrin-based dyes, based on GY50 by utilizing 2-cyanoacrylic acid anchoring group and modifying the π bridge with thiophene, furan and/or vinyl groups, has been designed and investigated for screening efficient sensitizers in dye sensitized solar cells (DSSCs). The efficiency of the designed dye molecules is analyzed through various parameters. The absorption spectra of ...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10201.html |
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A planar dithiafulvene based sensitizer forming J-aggregates on TiO2 photoanode to enhance the performance of dye-sensitized solar cells.
A newly planar dithiafulvene sensitizer (DTF-C4) trending to form J-aggregates on the surface of mesoporous TiO2 by simply rinsing with a poor solvent acetonitrile was synthesized. We further show that the self-assembled J-aggregates optimized the TiO2surface utilization, enhanced the light harvesting ability by broadening and red-shifting the absorption, and suppressed the electron recombinatio...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10200.html |
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Theoretical investigation on novel porphyrin dyes with functionalized bridge and donor groups for dye-sensitized solar cells.
A series of porphyrin dyes with functionalized bridge and donor groups are investigated as organic dyes in dye-sensitized solar cells (DSSCs) using the density functional theory (DFT) and time-dependent DFT approach. Molecular geometries, electronic structures, optical absorption spectra, and light-harvesting efficiency are analyzed in tetrahydrofuran solution. Our results show that bithiophenyl...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10194.html |
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Theoretical insight into organic dyes incorporating triphenylamine-based donors and binary π-conjugated bridges for dye-sensitized solar cells.
The design of light-absorbent sensitizers with sustainable and environment-friendly material is one of the key issues for the future development of dye-sensitized solar cells (DSSCs). In this work, a series of organic sensitizers incorporating alkoxy-substituted triphenylamine (tpa) donors and binary π-conjugated bridges were investigated using density functional theory (DFT) and time-depe...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10193.html |
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Theoretical insight into electronic structure and optoelectronic properties of heteroleptic Cu(I)-based complexes for dye-sensitized solar cells.
A series of heteroleptic Cu(I)-based dyes were investigated by density functional theory (DFT) and time-dependent DFT (TD-DFT). Results showed that Cu(I)-based dyes were inclined to form distorted pseudo-trigonal pyramidal configurations with four-coordinated geometry index τ4 ranging from 0.905 to 0.914. The absorption spectra of Cu(I)-based dyes covered ～300.0–600.0 nm region, and the lowes...
http://www.polymer.cn//ss/luxiaoqing/publicationsshow_10185.html |
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