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Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
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Comment on "Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells"

Sandheep Ravishankar1, Thomas Unold2, Thomas Kirchartz3,4

  • 1IEK-5 Photovoltaik, Forschungszentrum Jülich, 52425 Jülich, Germany.

Science (New York, N.Y.)
|February 26, 2021
PubMed

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P-N junction01:11

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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...
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