Application of aqueous Ag:ZnInSe quantum dots to non-toxic sensitized solar cellsElectronic supplementary information (ESI) available. See DOI: 10.1039/c5ra04242a

We report the assembly of non-toxic Ag-doped ZnInSe (AZIS) quantum dot (QD)-sensitized solar cells (QDSSC) with a conversion efficiency of 0.89% at 1 sun. The QDs were directly adsorbed on a TiO 2 film with the addition of a surface-active agent (Triton X-100). ZnS treatment was performed on QDs by...

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Main Authors: Wang, Zhao-Chong, Xu, Shu-Hong, Wang, Chun-lei, Zhu, Li, Bo, Fan, Lin, Xiao-Yan, Wang, Zhu-Yuan, Cui, Yi-Ping
Format: Article
Language:English
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Summary:We report the assembly of non-toxic Ag-doped ZnInSe (AZIS) quantum dot (QD)-sensitized solar cells (QDSSC) with a conversion efficiency of 0.89% at 1 sun. The QDs were directly adsorbed on a TiO 2 film with the addition of a surface-active agent (Triton X-100). ZnS treatment was performed on QDs by the successive ionic layer adsorption and reaction method to inhibit the recombination current in QDSSCs. The results demonstrated that Triton X-100 increased the QD loading on mesoporous TiO 2 . The conversion efficiency of an aqueous, non-toxic AZIS QDSSC containing Triton X-100, a ZnS passivating layer and a Cu 2 S counter electrode reached 0.89% at 1 sun. A non-toxic, aqueous Ag:ZnInSe quantum dot-sensitized solar cell with an efficiency of 0.89% at 1 sun was fabricated.
ISSN:2046-2069
DOI:10.1039/c5ra04242a