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Photoelectrochemical performance enhanced by a nickel oxide-hematite p-n junction photoanode

Jiangtian Li1, Fanke Meng, Savan Suri

  • 1Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106, USA.

Chemical Communications (Cambridge, England)
|July 12, 2012
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P-N junction01:11

P-N junction

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...