A Study of the Semiconductivity of Polycrystalline Cuprous Oxide

다결정 산화구리의 반도성에 관한 연구

  • 최재시 (연세대학교 이공대학 화학과) ;
  • 여철현 (연세대학교 이공대학 화학과)
  • Published : 1972.04.30


The semiconductivity of polycrystalline $Cu_2O$ has been studied between $220^{\circ}C$ and $680^{\circ}C under partial pressures of oxygen from $4.06{\times}10^{-3}\;to\;10^{-5 }\;mmHg$. The plots of log conductivity vs 1/T at constant oxygen pressure were found to be linear, and the activation energies obtained from the slopes of these plots above the first transition point showed that the energies were greater under high oxygen pressure than under low pressure. The transition points between the stable range and the unstable range of $Cu_2O$ were found from the curves. The dependence of the semiconductivity on the $O_2$ pressure, in the above temperature range, is shown hysteresis.



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