研究目的
Investigating the enhancement in the efficiency of Sb2Se3 solar cells by adding a low lattice mismatch CuSbSe2 hole transport layer.
研究成果
The addition of an ultra-thin CuSbSe2 film significantly improved the optical performance of Sb2Se3 solar cells, increasing carrier concentration, reducing surface roughness, and enhancing carrier collection, leading to a 5.87% efficiency, which is more than 25% higher than the basic efficiency.
研究不足
The efficiency of Sb2Se3 solar cells is still lower than that of other semiconductor solar cells, primarily due to low hole carrier concentration and high back surface recombination.
1：Experimental Design and Method Selection:
The study involved preparing an additional CuSbSe2 film as a hole transport layer by co-sputtering Sb2Se3 and Cu targets to reduce surface roughness and back surface recombination.
2：Sample Selection and Data Sources:
Sb2Se3 thin films were used as the absorption layer, with CuSbSe2 films prepared under different sputtering powers of Cu.
3：List of Experimental Equipment and Materials:
High vacuum magnetron sputtering coating equipment, Cu and Sb2Se3 targets, FTO/CdS/Sb2Se3/CuSbSe2/Au solar cell structure.
4：Experimental Procedures and Operational Workflow:
The CdS layer was prepared by thermal evaporation, followed by Sb2Se3 thin film deposition by vapor transmission deposition. CuSbSe2 films were then deposited by co-sputtering, and the samples were annealed.
5：Data Analysis Methods:
XRD, SEM, XPS, AFM, Hall test, and J-V characteristic curves were used to analyze the films and solar cells.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
