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Physics
Atomic and Condensed Matter
Diffusion of carriers in a double heterostructure
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[QUOTE="espen-4, post: 5450471, member: 590849"] I do not know the typical height, but I think a height of 100 meV should be sufficient for a device operating at room temperature. For lower temperatures an even lower step height would be sufficient in order to trap the carriers in the low gap material. You also need to look at how the band alignment changes as you go from undoped to doped layers. The Fermi levels must be aligned. This is easy to find in textbooks. My favourite being Streetman: Solid state Electronic Devices. [/QUOTE]
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Diffusion of carriers in a double heterostructure
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