Please, What is the relationship between crystalline size and the band gap of materials?

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David Bérardan

In principle, the band gap of a material increases when the grains size decreases (blue shift). See for example:

doi: 10.1021/jp207237dd

or: J Phys Chem 90, 2555 (1986)

Hamed Bakhshi

Dear David,

I could not find it. Please send it for me or give some more information about it.

Best regards,

Hamed

Dear Hamed,

you can find the direct link to these two papers here:

Article Controlling the Band Gap of ZnO by Programmable Annealing

Article Electronic Wave-Functions in Semiconductor Clusters—Experime...

regards,

David Berardan