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Zinc dopant inspired enhancement of electron injection for CuInS2 quantum dot-sensitized solar cells
Wu, Qinqin1; Cai, Chunqi1; Zhai, Lanlan1; Wang, Jiantao1; Kong, Fantai2; Yang, Yun1; Zhang, Lijie1; Zou, Chao1; Huang, Shaoming1
2017
Source PublicationRSC ADVANCES
Volume7Issue:63Pages:39443-39451
AbstractAfter being doped with zinc, CuInS2 quantum dots (QDs) exhibit desired tunable optical and electronic properties, more specifically, photoluminescence emission and band gap. The former is mainly due to the intrinsic donor-acceptor transition, which, together with the improved quantum yield and large longest decay time, accounts for 95% of the whole emission profiles. The latter results in an enhanced k(et) value of 2.99 x 10(10) s(-1), greater than that for pure CuInS2 QDs by an order of magnitude. Functioning as light harvesting materials in quantum dot sensitized solar cells, zinc doped CuInS2 QDs show broadened photoresponse up to similar to 950 nm. Incident photon-to-current conversion efficiency of quantum dot sensitized solar cells achieves a maximum of 69% at 500 nm and can be maintained over 50% within the window below 750 nm. After the doping with zinc under optimized conditions, the average power conversion efficiency of solar cells under one full sun illumination demonstrates an increase of 13.2%, from 5.21% for pure CuInS2 QDs to 5.90% for doped CuInS2 QDs. It is proven that the improved performance can be attributed to a broadened optoelectronic response range and accelerated electron injection.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China(51572199 ; National Natural Science Foundation of China(51572199 ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; 51420105002 ; 51420105002 ; 51302194 ; 51302194 ; 61471270) ; 61471270) ; National Natural Science Foundation of China(51572199 ; National Natural Science Foundation of China(51572199 ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; 51420105002 ; 51420105002 ; 51302194 ; 51302194 ; 61471270) ; 61471270)
DOI10.1039/c7ra06659g
WOS KeywordSEMICONDUCTOR NANOCRYSTALS ; CHALCOPYRITE SEMICONDUCTOR ; PHOTOVOLTAIC PERFORMANCE ; LIGAND-EXCHANGE ; DEFECT PHYSICS ; EFFICIENCY ; NANOPARTICLES ; ELECTROLUMINESCENCE ; PHOTOLUMINESCENCE ; LUMINESCENCE
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(51572199 ; National Natural Science Foundation of China(51572199 ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; 51420105002 ; 51420105002 ; 51302194 ; 51302194 ; 61471270) ; 61471270) ; National Natural Science Foundation of China(51572199 ; National Natural Science Foundation of China(51572199 ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences(KF201603) ; 51420105002 ; 51420105002 ; 51302194 ; 51302194 ; 61471270) ; 61471270)
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000407963500006
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33608
Collection应用技术研究所
Affiliation1.Wenzhou Univ, Coll Chem & Mat Engn, Zhejiang Key Lab Carbon Mat, Wenzhou 325027, Zhejiang, Peoples R China
2.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Novel Thin Film Solar Cells, Hefei 230088, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Wu, Qinqin,Cai, Chunqi,Zhai, Lanlan,et al. Zinc dopant inspired enhancement of electron injection for CuInS2 quantum dot-sensitized solar cells[J]. RSC ADVANCES,2017,7(63):39443-39451.
APA Wu, Qinqin.,Cai, Chunqi.,Zhai, Lanlan.,Wang, Jiantao.,Kong, Fantai.,...&Huang, Shaoming.(2017).Zinc dopant inspired enhancement of electron injection for CuInS2 quantum dot-sensitized solar cells.RSC ADVANCES,7(63),39443-39451.
MLA Wu, Qinqin,et al."Zinc dopant inspired enhancement of electron injection for CuInS2 quantum dot-sensitized solar cells".RSC ADVANCES 7.63(2017):39443-39451.
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