When one dope Al in ZnO what is the exact position of aluminium states in ZnO band gap?

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S. Jabri

ZnO doped Al is type n

The PL spectra at low temperature show a peak at 3.3610 eV attributed to donor exciton DX related to aluminium. The aluminium impurities create a shalow donor near to conduction band.

good luck

Chetan Singh

Thank you S. Jabri Sir for answer. Can you provide me reference for this if you have.

S. Tewari

It may vary depending on the process as well as amount of doping. In case of high doping there may be formation of Al2O3 at the impurity sites. In case of lower doping concentration creation of shallow donor near the conduction as mentioned by S Jabir.

Arindam Ghosh

Dear Chetan

Please go through my papers. I certainly hope that they will help you. If not, please reply me then I will try to give the explanation.

1. Structural, electrical and optical studies on Ruthenium doped ZnO pellets for device applications

2. Structural and optical properties of pure and Al doped ZnO nanocrystals

3. Influence of Cu doping on the structural, electrical and optical properties of ZnO

Best of luck and regards