How does the level/strength of interfacial contact between a semiconductor & a substrate or dye affect the charge carrier transfer between them?

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TiO2 nscf calculation using quantum expresso in DFT?

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Samares Kar

It is not so much a question of strength as of intimacy. An intimate contact is necessary for electron or hole transfer across a semiconductor interface. An intimate contact means that the semiconductor surface should be within a tunnelling distance of the substrate surface.

Abdullahi B. Makama

Thanks for your response Prof.

Z. Ben Hamed

it is question of metal/semi-conductor interface mechanisms such as Contact Métal/SC: diode Schottky or Tunnel contacts. more information in http://ecee.colorado.edu/~bart/book/book/chapter3/ch3_5.htm