164352-24-3Relevant articles and documents
Polymer Solar Cells Based on the Copolymers of Naphtho[1,2-c:5,6-c]bis(1,2,5-thiadiazole) and Alkoxylphenyl Substituted Benzodithiophene with High Open-Circuit Voltages
Liu, Liqian,Zhang, Guichuan,He, Baitian,Huang, Fei
, p. 902 - 908 (2015)
Two novel naphtho[1,2-c:5,6-c]bis(1,2,5-thiadiazole) and alkoxylphenyl substituted benzodithiophene based copolymers were developed as the donor materials for polymer solar cells. The resulting copolymers exhibit broad absorption bands in the range of 500
Implication of side-chain fluorination on electronic properties, ordering structures, and photovoltaic performance in asymmetric-indenothiophene-based semiconducting polymers
Jiang, Chenglin,Chen, Xiaofeng,Zhao, Mingzhi,Li, Yongfang,Li, Xiaoyu,Wang, Haiqiao
, p. 122 - 130 (2019)
Side-chain fluorination of conjugated polymers has been proved to be a highly effective approach for optimizing optical and electrical properties of the relative polymers. However, current studies on the fluorination are all based on symmetric molecular structures. In this work, two new D-A type photovoltaic polymers, namely PITPh-DTffBT and PITPhf-DTffBT, based on asymmetric indenothiophene (IT) donor units with alkoxyphenyl or fluoroalkoxyphenyl substituents were designed and synthesized. Effects of the fluorine substitution in the asymmetric IT donor units on the electronic structure, ordering structure, photovoltaic properties, and charge generation and recombination dynamics were investigated. It is found that side-chain fluorination in the asymmetric donor units of the D-A polymers endowed the relative polymer with a deeper HOMO level, higher and more balanced charge mobilites, increased charge dissociation efficiency and reduced bimolecular recombination. As a result, the bulk heterojunction solar cell based on the blend film of PITPhf-DTffBT and PC71BM demonstrated an efficiency of 7.03%, whereas the cell efficiency based on PITPh-DTffBT was only 5.68%. These results indicate that our design strategy by introducing a fluoroalkoxyphenyl unit as side chain to fabricate asymmetric IT-based polymer is efficient in improving the photovoltaic performance. We believe that the results provide new insights into the design of high-performance semiconducting photovoltaic polymers.
Tailor-made hole-conducting coadsorbents for highly efficient organic dye-sensitized solar cells
Choi, In Taek,Ju, Myung Jong,Song, Sang Hyun,Kim, Sang Gyun,Cho, Dae Won,Im, Chan,Kim, Hwan Kyu
, p. 15545 - 15555 (2013)
The Y-shaped, low molecular mass, hole-conductor (HC), acidic coadsorbents 4-{3,7-bis[4-(2-ethylhexyloxy)phenyl]-10H-phenothiazin-10-yl}benzoic acid (PTZ1) and 4-{3,7-bis[4-(2-ethylhexyloxy)phenyl]-10H-phenothiazin-10-yl}biphenyl-4- carboxylic acid (PTZ2)
Synthesis and Application of Perylene-Embedded Benzoazoles for Small-Molecule Organic Solar Cells
Chen, Zhicai,Li, Jing,Li, Mingguang,Chen, Cailin,Xu, Shen,Tang, Xingxing,Chen, Lingfeng,Chen, Runfeng,Huang, Wei
, p. 6376 - 6379 (2018)
Two new building blocks of perylene-embedded benzoazoles containing both rigid 2D-conjugated aromatic rings and flexible branched alkyl chains were designed and facilely synthesized in high yields for organic solar cells (OSCs). With a typical acceptor of
Effect of π-spacers and anchoring groups on the photovoltaic performances of ullazine-based dyes
Qiao, He,Deng, Yanghua,Peng, Ruipeng,Wang, Guo,Yuan, Jing,Tan, Songting
, p. 70046 - 70055 (2016/08/06)
Three ullazine-based organic sensitizers (QD1, QD2 and QD3) have been designed, synthesized, and characterized for dye-sensitized solar cells (DSSCs). Ullazine possesses some attractive properties, such as a planar π-system to promote intensely the intram
