Directly assembled CdSe quantum dots on TiO2 in aqueous solution by adjusting pH value for quantum dot sensitized solar cells

作者：Chen J; Zhao D W; Song J L; Sun X W^*; Deng W Q; Liu X W; Lei W

来源：Electrochemistry Communications, 2009, 11(12): 2265-2267.

DOI：10.1016/j.elecom.2009.10.003

• Quantum dot
• Solar cell
• CdSe
• pH value

We report an improved quantum dot sensitized solar cell (QDSSC) by loading mercaptopropionic acid (MPA)-capped CdSe QDs on TiO2 film in aqueous solution. Under suitable pH value, a power conversion efficiency of 1.19% and an incident photon to current conversion efficiency of 26% for the QDSSC were obtained at AM1.5G irradiation. The improved performance of QDSSC is attributed to the large loading and good coverage of QDs on TiO2 film with optimal pH value.

• 出版日期2009-12
• 单位南阳理工学院; 东南大学