A novel method for preparation of Zn-doped CuInS2 solar cells and their photovoltaic performance

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Abstract

In this study, a novel method was proposed to synthesize high quality Zn-doped CuInS 2 nanocrystals under high frequency magnetic field at ambient conditions. The magnetic Zn-doping gave superparamagnetic heating of the resulting nanocrystals via magnetic induction, causing an accelerating growth rate of the doped CuInS 2 under ambient conditions faster than conventional autoclave synthesis. Shape evolution of the Zn-doped CuInS 2 nanocrystals from initially spherical to pyramidal, to cubic, and finally to a bar geometry was detected as a function of time of exposure to magnetic induction. These colloidal solvents with different shaped nanocrystals were further used as “nanoink” to fabricate a simple thin film solar device; the best efficiency we obtained of these crystals was 1.01% with a 1.012 μ m thickness absorber layer (bar geometry). The efficiency could be promoted to 1.44% after the absorber was thickened to 2.132 μ m.

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Peng, C. H., & Hwang, C. C. (2013). A novel method for preparation of Zn-doped CuInS2 solar cells and their photovoltaic performance. The Scientific World Journal, 2013. https://doi.org/10.1155/2013/798713

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