Application of aqueous Ag:ZnInSe quantum dots to non-toxic sensitized solar cells

作者:Wang Zhao Chong; Xu Shu Hong; Wang Chun Lei; Zhu Li; Bo Fan; Lin Xiao Yan; Wang Zhu Yuan; Cui Yi Ping*
来源:RSC Advances, 2015, 5(57): 46186-46191.
DOI:10.1039/c5ra04242a

摘要

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 TiO2 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 TiO2. The conversion efficiency of an aqueous, non-toxic AZIS QDSSC containing Triton X-100, a ZnS passivating layer and a Cu2S counter electrode reached 0.89% at 1 sun.