中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉物理与数学研究所
  3. 中国科学院武汉物理与数学研究所
Effect of substitution position on photoelectronic properties of indolo[3,2-b] carbazole-based metal-free organic dyes

文献类型：期刊论文

作者Feng, Jiwen2; Cheng, Xudong1; Wang, Huijuan2; Di, Yi2; Chen, Bing2; Xiao, Zhanhai1,2
刊名SOLAR ENERGY
出版日期2018-10-01
卷号173页码:825-833
关键词Dye sensitized solar cells DFT calculations D-D-pi-A Co-sensitization
ISSN号0038-092X
DOI10.1016/j.solener.2018.08.029
英文摘要Two new indolo[3,2-b]carbazole-based metal-free organic dyes (Dl and D2) were synthesized by utilizing triphenylamine as the first donor which were connected to the second donor indolo[3,2-b]carbazole via 9-position and 8-position, respectively. The dyes were characterized by UV-visible absorption spectra and electrochemical analyses. The both two dyes showed intensive absorption spectra in the wavelength of 300-600 nm and narrow band gap of 2.29 eV for Dl and 2.16 eV for D2. The cyclic voltanunetry indicated that the oxidative potentials and reductive potentials of the dyes were well matched with the energy levels of the I-/I-3(-) redox couple and TiO2 conduction band, respectively. The substituted positions on the indolo[3,2-b]carbazole played important roles in tuning the photoelectronic properties. The dye D2 with 2, 8-substituted indolo[3,2-b]carbazole core shows wider absorption spectrum and lower dye aggregation than D1 with 3,9-substituted isomer. The best power conversion efficiency (PCE) of 6.34% is obtained by the dye D2 due to its wider absorption spectra and strong steric hindrance, which can effectively suppress the undesirable dye aggregation. The co-sensitization of Dl and D2 enhances IPCE response in the visible light region and further improves the PCE up to 7.03%.
WOS关键词D-PI-A ; SENSITIZED SOLAR-CELLS ; CONVERSION EFFICIENCY ; TRIPHENYLAMINE ; BENZOTRIAZOLE ; ACCEPTOR ; DONOR ; UNITS ; FILM
资助项目National Natural Science Foundation of China[21303256] ; National Natural Science Foundation of China[11274347]
WOS研究方向Energy & Fuels
语种英语
WOS记录号WOS:000452940800080
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.wipm.ac.cn/handle/112942/13420]  
专题中国科学院武汉物理与数学研究所
通讯作者Feng, Jiwen; Cheng, Xudong; Chen, Bing
作者单位1.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China
2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Jiwen,Cheng, Xudong,Wang, Huijuan,et al. Effect of substitution position on photoelectronic properties of indolo[3,2-b] carbazole-based metal-free organic dyes[J]. SOLAR ENERGY,2018,173:825-833.
APA Feng, Jiwen,Cheng, Xudong,Wang, Huijuan,Di, Yi,Chen, Bing,&Xiao, Zhanhai.(2018).Effect of substitution position on photoelectronic properties of indolo[3,2-b] carbazole-based metal-free organic dyes.SOLAR ENERGY,173,825-833.
MLA Feng, Jiwen,et al."Effect of substitution position on photoelectronic properties of indolo[3,2-b] carbazole-based metal-free organic dyes".SOLAR ENERGY 173(2018):825-833.

入库方式： OAI收割

来源：武汉物理与数学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。