Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, People's Republic of China.
Nanoscale Res Lett. 2013 Oct 31;8(1):453. doi: 10.1186/1556-276X-8-453.
An improvement in the power conversion efficiency (PCE) of the inverted organic solar cell (ITO/nc-TiO2/P3HT:PCBM/PEDOT:PSS/Ag) is realized by depositing CdS quantum dots (QDs) on a nanocrystalline TiO2 (nc-TiO2) film as a light absorption material and an electron-selective material. The CdS QDs were deposited via a chemical bath deposition (CBD) method. Our results show that the best PCE of 3.37% for the ITO/nc-TiO2/CdS/P3HT:PCBM/PEDOT:PSS/Ag cell is about 1.13 times that (2.98%) of the cell without CdS QDs (i.e., ITO/nc-TiO2/P3HT:PCBM/PEDOT:PSS/Ag). The improved PCE can be mainly attributed to the increased light absorption and the reduced recombination of charge carriers from the TiO2 to the P3HT:PCBM film due to the introduced CdS QDs.
通过在纳米晶 TiO2（nc-TiO2）薄膜上沉积 CdS 量子点（QDs）作为光吸收材料和电子选择性材料，可提高倒置有机太阳能电池（ITO/nc-TiO2/P3HT：PCBM/PEDOT：PSS/Ag）的功率转换效率（PCE）。CdS QDs 通过化学浴沉积（CBD）方法沉积。我们的结果表明，对于 ITO/nc-TiO2/CdS/P3HT：PCBM/PEDOT：PSS/Ag 电池，最佳的 PCE 为 3.37%，约为没有 CdS QDs（即 ITO/nc-TiO2/P3HT：PCBM/PEDOT：PSS/Ag）的电池的 1.13 倍。提高的 PCE 主要归因于引入 CdS QDs 后增加了光吸收并减少了载流子从 TiO2 到 P3HT：PCBM 膜的复合。
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