ICCAS OpenIR
Efficient Dye-Sensitized Solar Cells with an Organic Photosensitizer Featuring Orderly Conjugated Ethylenedioxythiophene and Dithienosilole Blocks
Zeng, Wangdong1,2; Cao, Yiming1; Bai, Yu1; Wang, Yinghui1; Shi, Yushuai1; Zhang, Min1; Wang, Fangfang1; Pan, Chunyue2; Wang, Peng1
2010-03-09
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume22Issue:5Pages:1915-1925
AbstractIn view of the limited ruthenium resource, metal-free organic dyes may play a prominent role in the coming large-scale application of cost-effective dye-sensitized solar cells, if their efficiency and stability can be considerably improved. In this paper we utilized a binay pi-conjugated spacer of ethylenedioxythiophene and dithienosilole to construct a high molar absorption coefficient push-pull dye, characteristic of an intramolecular charge-transfer band peaking at 584 nm measured in chloroform. In comparison with the standard ruthenium sensitizer Z907, this metal-free chromophore C219 endowed a nanocrystalline titania Film with all evident light-harvesting enhancement. leading to an unprecedented 10 0- 10 3% efficiency at the AM 1 5G conditions for dye-sensitized solar cells with nonruthenium dyestuffs, although a highly volatile electrolyte was used. Transient absorption measurements have revealed that even if the kinetics of back-electron transfer and dye regeneration am considerably different for Z907 and C219, the branching ratios of these two charge-transfer channels are over 35 for both dyes, ensuring a high yield of net charge separation at the titania/dye/electrolyte interface. A solvent-free ionic liquid cell with C219 as the sensitizer exhibited an impressive efficiency or 8 9% under a low light intensity of 14.39 mW cm(-2), making it very favorable for the indoor application of flexible dye-sensitized solar cells.
DOI10.1021/cm9036988
Indexed BySCI
Language英语
WOS IDWOS:000274929000040
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:785[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69060
Collection中国科学院化学研究所
Corresponding AuthorWang, Peng
Affiliation1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
2.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
Recommended Citation
GB/T 7714
Zeng, Wangdong,Cao, Yiming,Bai, Yu,et al. Efficient Dye-Sensitized Solar Cells with an Organic Photosensitizer Featuring Orderly Conjugated Ethylenedioxythiophene and Dithienosilole Blocks[J]. CHEMISTRY OF MATERIALS,2010,22(5):1915-1925.
APA Zeng, Wangdong.,Cao, Yiming.,Bai, Yu.,Wang, Yinghui.,Shi, Yushuai.,...&Wang, Peng.(2010).Efficient Dye-Sensitized Solar Cells with an Organic Photosensitizer Featuring Orderly Conjugated Ethylenedioxythiophene and Dithienosilole Blocks.CHEMISTRY OF MATERIALS,22(5),1915-1925.
MLA Zeng, Wangdong,et al."Efficient Dye-Sensitized Solar Cells with an Organic Photosensitizer Featuring Orderly Conjugated Ethylenedioxythiophene and Dithienosilole Blocks".CHEMISTRY OF MATERIALS 22.5(2010):1915-1925.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zeng, Wangdong]'s Articles
[Cao, Yiming]'s Articles
[Bai, Yu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zeng, Wangdong]'s Articles
[Cao, Yiming]'s Articles
[Bai, Yu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zeng, Wangdong]'s Articles
[Cao, Yiming]'s Articles
[Bai, Yu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.