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Integrated probing the influence of dye acceptor with several electron withdrawing groups for dye-sensitized solar cells
Sun, Zhu-Zhu1; Feng, Shuai2; Ding, Wei-Lu3
2020
Source PublicationSOLAR ENERGY
ISSN0038-092X
Volume195Pages:491-498
Abstractorder to explore the influence of diverse acceptors with varying amounts of electron withdrawing groups on the organic dye in dye-sensitized solar cell (DSCs), a series of JF419 organic analogues with several cyano groups (CN) on acceptor were engineered. By performing theoretical studies on these investigated dyes and the corresponding dye/(TiO2)(38) complexes, two benzoic acid units (benzothiadiazole benzoic acid and vinyl benzoic acid) with more -CNs were identified as alternative acceptors for DSCs. Particularly, S3 and S5 dyes exhibited impressive red-shift in spectra (ca. 77 nm for S3 and 48 nm for S5 compared with JF419), more accessible charge separation state and large driving force for dye regeneration (Delta G(reg) = 0.51 eV for S3 and Delta G(reg) = 0.61 eV for S5). According to quantifying the charge transfer (CT) on semiconductor surface, it found that the growing electron withdrawing groups on acceptor can strengthen the interaction between dyes and TiO2 and provide favorable conditions for electron injection. A brilliant balance between the electron injection time (tau = 6.8 fs for S3 and tau = 7.3 fs for S5) and the electron-hole recombination distance (r = 20.5 angstrom for S3 and r = 19.2 angstrom for S5) could be acquired for S3 and S5 dyes. Synthetically, introducing electron withdrawing groups on acceptor for organic dyes is a valid approach for gaining great performance of DSCs.
KeywordDye-sensitized solar cells Organic dyes Electron withdrawing group Charge transfer Density functional theory
DOI10.1016/j.solener.2019.11.076
Language英语
WOS KeywordORGANIC-DYES ; CHARGE-TRANSFER ; THEORETICAL CHARACTERIZATION ; DESIGN ; DONOR ; DYNAMICS ; ANCHOR ; ENERGY
Funding ProjectHenan province natural science foundation of China[162300410232] ; Shandong province natural science foundation of China[ZR2017BB050] ; Shandong province natural science foundation of China[ZR2017BEM014] ; National Natural Science Foundation of China[51702228] ; Talent introduction start-up foundation of Taishan University[Y-01-2016003] ; Nanhu Scholars Program for Yong Scholars of XYNU ; Doctoral Scientific Research Foundation of Xinyang Normal University ; high-performance computing platform of Xinyang Normal University
WOS Research AreaEnergy & Fuels
WOS SubjectEnergy & Fuels
Funding OrganizationHenan province natural science foundation of China ; Shandong province natural science foundation of China ; National Natural Science Foundation of China ; Talent introduction start-up foundation of Taishan University ; Nanhu Scholars Program for Yong Scholars of XYNU ; Doctoral Scientific Research Foundation of Xinyang Normal University ; high-performance computing platform of Xinyang Normal University
WOS IDWOS:000509632000046
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39230
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Shuai
Affiliation1.Xinyang Normal Univ, Energy Saving Bldg Mat Innovat Collaborat Ctr Hen, Xinyang 464000, Peoples R China
2.Taishan Univ, Coll Chem & Chem Engn, Tai An 271021, Shandong, Peoples R China
3.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn, Inst Proc EngnBeijing Key Lab Ion Liquids Clean P, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Sun, Zhu-Zhu,Feng, Shuai,Ding, Wei-Lu. Integrated probing the influence of dye acceptor with several electron withdrawing groups for dye-sensitized solar cells[J]. SOLAR ENERGY,2020,195:491-498.
APA Sun, Zhu-Zhu,Feng, Shuai,&Ding, Wei-Lu.(2020).Integrated probing the influence of dye acceptor with several electron withdrawing groups for dye-sensitized solar cells.SOLAR ENERGY,195,491-498.
MLA Sun, Zhu-Zhu,et al."Integrated probing the influence of dye acceptor with several electron withdrawing groups for dye-sensitized solar cells".SOLAR ENERGY 195(2020):491-498.
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