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Significant influences of elaborately modulating electron donors on light absorption and multichannel charge-transfer dynamics for 4-(benzo[c][1,2,5]thiadiazol-4-ylethynyl)benzoic acid dyes

文献类型：期刊论文

作者Wang, Erfeng1; Yao, Zhaoyang2,4; Zhang, Yiqiang1; Shao, Guosheng1; Zhang, Min2; Wang, Peng3
刊名Acs applied materials & interfaces
出版日期2016-07-20
卷号8期号:28页码:18292-18300
关键词Electron acceptor Electron donor Organic dye-sensitized solar cell Metal-free organic dye Computational simulation
ISSN号1944-8244
DOI10.1021/acsami.6b05554
通讯作者Zhang, yiqiang(yqzhang@zzu.edu.cn) ; Shao, guosheng(gsshao@zzu.edu.cn) ; Zhang, min(min.zhang@ciac.ac.cn) ; Wang, peng(pw2015@zju.edu.cn)
英文摘要4-(benzo[c] [1,2,5]thiadiazol-4-ylethynyl)benzoic acid (bteba) as a promising electron acceptor has been used in the highly efficient organic dye-sensitized solar cells (dscs) recently. because of its strong electron deficient character, bteba could bring forth a remarkable decline in the energy level of the lowest unoccupied molecular orbital (lumo) and further reduce the energy gap of dye molecules significantly. in this contribution, two metal free organic dyes wef1 and wef2 were synthesized by simply combining bteba with two slightly tailored electron-releasing moieties: 4-hexylphenyl substituted indaceno[1,2-b:5,6-b']dithiophene (idt) and cyclopenta[1,2-b:5,4-b'] dithiophene [2', 1' :4,5] thieno [2,3-d] thiophene (cpdtdt), which were screened rationally from an electron-donor pool via computational simulation. with respect to those of weft, wef2-sensitized solar cells demonstrate a far better short-circuit photocurrent density (j(sc)) and open-circuit photovoltage (v-oc), resulting in a similar to 50% improved power conversion efficiency of 10.0% under irradiance of 100 mw cm(-2) am1.5g sunlight. we resorted to theoretical calculations, electrical measurements, steady-state, and time-resolved spectroscopic methods to shed light on the fatal influences of elaborately modulating electron donors on light absorption, interfacial energetics, and multichannel charge-transfer dynamics.
WOS关键词SENSITIZED SOLAR-CELLS ; 12 PERCENT EFFICIENCY ; ORGANIC-DYES ; NANOCRYSTALLINE TIO2 ; HIGH-PERFORMANCE ; RECOMBINATION DYNAMICS ; CONVERSION EFFICIENCY ; RUTHENIUM SENSITIZER ; PORPHYRINS ; DESIGN
WOS研究方向Science & Technology - Other Topics ; Materials Science
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种英语
WOS记录号WOS:000380298400061
出版者AMER CHEMICAL SOC
URI标识http://www.irgrid.ac.cn/handle/1471x/2374783
专题中国科学院大学
通讯作者Zhang, Yiqiang; Shao, Guosheng; Zhang, Min; Wang, Peng
作者单位1.Zhengzhou Univ, SCICDLCEM, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
3.Zhejiang Univ, Dept Chem, Hangzhou 310028, Zhejiang, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Erfeng,Yao, Zhaoyang,Zhang, Yiqiang,et al. Significant influences of elaborately modulating electron donors on light absorption and multichannel charge-transfer dynamics for 4-(benzo[c][1,2,5]thiadiazol-4-ylethynyl)benzoic acid dyes[J]. Acs applied materials & interfaces,2016,8(28):18292-18300.
APA Wang, Erfeng,Yao, Zhaoyang,Zhang, Yiqiang,Shao, Guosheng,Zhang, Min,&Wang, Peng.(2016).Significant influences of elaborately modulating electron donors on light absorption and multichannel charge-transfer dynamics for 4-(benzo[c][1,2,5]thiadiazol-4-ylethynyl)benzoic acid dyes.Acs applied materials & interfaces,8(28),18292-18300.
MLA Wang, Erfeng,et al."Significant influences of elaborately modulating electron donors on light absorption and multichannel charge-transfer dynamics for 4-(benzo[c][1,2,5]thiadiazol-4-ylethynyl)benzoic acid dyes".Acs applied materials & interfaces 8.28(2016):18292-18300.

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