pH-dependence of conduction type in cuprous oxide synthesized from solution
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Date
2010-06-28Author
Tao, Meng
Wang, Longcheng
Zhang, Qiming
Wu, Dangxin
Wang, Weichao
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The formation of native point defects in cuprous oxide, Cu2O, synthesized from solution has been studied by first-principles calculations. Although p-type conduction is obtained in Cu2O synthesized from vacuum regardless of copper-rich or oxygen-rich conditions, intrinsically n-type Cu2O without doping can be grown in a strong acidic environment from solution. Our calculations show that both n-type and p-type Cu2O can be obtained depending on the solution pH value, which are in good agreement with our experimental results.