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We have performed first-principle calculations on the conductive behaviors of Ga, N single-doped and Ga–N codoped ZnO. According to the results, in the Ga single-doped case, with the comparatively smaller effective masses of electrons and the positive impurity formation energy, the fermi-level shifts upward into the conduction band, thus the n-type ZnO with good conductivity can be obtained. In both...
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