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* Researchers synthesized pure and Sn2+ doped CsPbCl3 perovskites at room temperature, varying the dopant concentration from 1% to 9% to analyze effects on properties.
* The study found that Sn2+ doping improved the material's luminescence, adjusted the emission color toward blue/violet, increased charge carrier mobility (up to 56.3 cm2/V-s), and reduced the bandgap to around 2.865 eV.
Article Abstract
Doping B-site with metal ions is an emerging strategy to reduce lead toxicity and enhance the optoelectronic performance of lead halide perovskites. Also, the concentration of metal dopants plays an important role in achieving the desired electrical and optical properties of these halide perovskites. This work presents a simple chemical approach to synthesize pure and Sndoped CsPbClperovskites at room temperature. The dopant concentration was varied from 1 to 9 mol%. The structural, morphological, optical, thermal, and electrical properties of prepared perovskites are studied in order to check the optimal doping concentration along with to know the improvement in the optoelectronic properties required for LEDs and photovoltaic cells. It was observed that CsPbClperovskites exhibit high photoluminescence intensity, blue/violet emission, and high charge carrier mobility (up to 56.3 cmV s) with a reduction in bandgap (up to 2.865 eV) after Sndoping.
