Band-gap shrinkage in n-type-doped CdO probed by photoemission spectroscopy
نویسندگان
چکیده
The influence of n-type doping CdO with In or Y has been investigated by high-resolution ultraviolet and x-ray photoemission spectroscopy. It is found that core levels and valence band features suffer a shift to high binding energy due to doping. However this shift is less than the change in the width of the occupied conduction band. This provides a direct measurement of band gap shrinkage as a result of doping in an oxide semiconductor. @S0163-1829~97!50820-4#
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