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Surface Photovoltage
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Geliefert zwischen Mi., 28.01.2026 und Do., 29.01.2026
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High Quality Content by WIKIPEDIA articles! As the name suggests, SPV measurements involve monitoring the potential of a semiconductor surface while generating electron-hole pairs with a light source. The surfaces of semiconductors are often depletion regions (or space charge regions) where a built-in electric field due to defects has swept out mobile charge carriers. A reduced carrier density means that the Fermi level is bent away from the electronic energy band in which the majority carriers reside. This band-bending gives rise to a surface potential. When a light source creates electron-hole pairs deep within the semiconductor, they must diffuse through the bulk before reaching the surface depletion region. The photogenerated minority carriers have a shorter diffusion length than the much more numerous majority carriers, with which they can radiatively recombine.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130506087
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Technik
- Anzahl Seiten 80
- EAN 9786130506087
- Format Fachbuch
- Titel Surface Photovoltage
- Herausgeber Betascript Publishing
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