ICCAS OpenIR
Molecular design of triarylamine-based organic dyes for efficient dye-sensitized solar cells
Li, Gang1,2; Jiang, Ke-Jian1; Bao, Peng1; Li, Ying-Feng1; Li, Shao-Lu1; Yang, Lian-Ming1
2009
Source PublicationNEW JOURNAL OF CHEMISTRY
ISSN1144-0546
Volume33Issue:4Pages:868-876
AbstractThree donor-(pi-spacer)-acceptor dyes, coded as DS-3, DS-5 and DS-6, were designed and synthesized for dye-sensitized solar cells (DSSCs). These dyes possess the same donor (triarylamine) and acceptor/anchoring group (2-cyanoacrylic acid), but the varied pi-spacers consisting of a combination of thiophene and/or 3,4-ethylenedioxythiophene (EDOT) units. They were evaluated by photophysical and electrochemical measurements as well as in nanocrystalline TiO(2)-based DSSCs fabricated using them as light-harvesting sensitizers. The results showed that incorporation of the EDOT moiety in the dye molecules strongly affected the molar extinction coefficient and photocurrent response. Among the three dyes, the DS-5-based DSSCs afforded the best photovoltaic performance: a maximum monochromatic incident photon-to-current conversion efficiency (IPCE) of 80%, a short-circuit photocurrent density (J(sc)) of 14.6 mA cm(-2), an open-circuit photovoltage (V(oc)) of 0.59 V and a fill factor (FF) of 0.70, corresponding to an overall conversion efficiency of 6.03% under 100 mW cm(-2) irradiation, which reached 77% with respect to that of an N3-based device fabricated and measured under similar conditions. Further, a method of molecular orbital calculations was employed for the insight into the geometrical, electronic and optical properties of these dyes.
DOI10.1039/b815649b
Indexed BySCI ; IC
Language英语
WOS IDWOS:000264978900026
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68278
Collection中国科学院化学研究所
Corresponding AuthorJiang, Ke-Jian
Affiliation1.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, New Mat Lab,BNLMS, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Gang,Jiang, Ke-Jian,Bao, Peng,et al. Molecular design of triarylamine-based organic dyes for efficient dye-sensitized solar cells[J]. NEW JOURNAL OF CHEMISTRY,2009,33(4):868-876.
APA Li, Gang,Jiang, Ke-Jian,Bao, Peng,Li, Ying-Feng,Li, Shao-Lu,&Yang, Lian-Ming.(2009).Molecular design of triarylamine-based organic dyes for efficient dye-sensitized solar cells.NEW JOURNAL OF CHEMISTRY,33(4),868-876.
MLA Li, Gang,et al."Molecular design of triarylamine-based organic dyes for efficient dye-sensitized solar cells".NEW JOURNAL OF CHEMISTRY 33.4(2009):868-876.
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