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Flash Infrared Annealing for Perovskite Solar Cell Processing
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A post-treatment additive enables synergistic surface passivation and secondary grain growth regulation for

Kelan Wang1, Shuai Xu1, Rong Cao2

  • 1School of Chemistry and Chemical Engineering, Nantong University, Nantong 226001, Jiangsu, China. wangyipu@ntu.edu.cn.

Chemical Communications (Cambridge, England)
|May 22, 2026
PubMed

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A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...