Citation: BAI Shu-Ming, TIAN Jian-Hua, MA Huan-Mei, ZHU Kun-Lei, SHAN Zhong-Qiang. Preparation and Photoelectric Performance of Mn-Doped-CdSSe₂ Quantum Dots Sensitized Electrode[J]. Chinese Journal of Inorganic Chemistry, ;2015, 31(7): 1365-1372. doi: 10.11862/CJIC.2015.197 shu

Preparation and Photoelectric Performance of Mn-Doped-CdSSe₂ Quantum Dots Sensitized Electrode

1.
1 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2.
2 Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, China

Corresponding author: TIAN Jian-Hua,
Received Date: 24 March 2015
Available Online: 21 May 2015
Fund Project: 国家973项目基金(No.2015CB251100)资助项目。 (No.2015CB251100)

Sodium sulfide-selenium prepared by adding Se powder into the Na₂S methanol-water solution was used as the anionic precursor, and the methanol-water solution of Cd(NO₃)₂ and Mn(CH₃COO)₂ was used as the cationic precursor, respectively. Then, cadmium sulfide-selenium quantum dots sensitized TiO₂ photoanodes (CdSSe₂/TiO₂) and Mn²⁺ doped cadmium sulfide-selenium quantum dots sensitized TiO₂ photoanodes (Mn-CdSSe₂/TiO₂) were successfully prepared by the successive ionic layer adsorption and reaction (SILAR) for Quantum dots solar cell (QDSC). The Raman spectrum, XPS were applied to analyze the chemical bonds of the Na₂SSe₂ precursors. EDX and UV-Vis were investigated the composition and light absorption property of Mn-CdSSe₂/TiO₂ photoanode. J-V curves and IPCE were used to characterize photovoltaic performance of the as-prepared CdS/TiO₂, CdSSe₂/TiO₂ and Mn-CdSSe₂/TiO₂ photoanodes. The results reveals that the Mn-CdSSe₂/TiO₂ photoanode with enhanced energy conversion efficiency has been fabricated by SILAR method using the anionic precursors prepared with 0.12 mol·L^-1 Se and 0.5 mol·L^-1 Na₂S, the cationic precursor of 0.5 mol·L^-1 Cd²⁺ and 0.3 mol·L^-1 Mn²⁺. Compared with the CdSSe₂/TiO₂ and CdS/TiO₂ photoanodes, the efficiency of the Mn-CdSSe₂/TiO₂ photoanode is increased by 90% and 247%, separately.
- quantum dots sensitized solar cell;sodium sulfide-selenium;Mn doped sodium sulfide-selenium;photoanode
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Preparation and Photoelectric Performance of Mn-Doped-CdSSe2 Quantum Dots Sensitized Electrode

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通讯作者: 陈斌, bchen63@163.com

Preparation and Photoelectric Performance of Mn-Doped-CdSSe₂ Quantum Dots Sensitized Electrode