Abstract
Spectral and kinetic dependences of the decrease in the surface potential (SP) of ZnO under illumination and processes of SP relaxation in the dark have been studied. A significant contribution to the decrease of SP in the less-than-bandgap light absorption region is shown to be due to the photodissociation of specific surface bonds with the formation of localized Zn +s and O −s .
Abstract
Изучены спектральные и кинетические зависимости поверхностного потенциала (ПП) ZnO при освещении и процессы релаксации ПП в темноте. Показано, что существенный вклад в процесс снижения ПП в области несобственного поглощения обусловлен фоторазрывом специфических поверхностных связей с образованием локализованных Zn +s и O −s .
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Koscheev, S.V., Cherkashin, A.E. Variation of the surface potential of zinc oxide under illumination. React Kinet Catal Lett 14, 129–134 (1980). https://doi.org/10.1007/BF02061276
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DOI: https://doi.org/10.1007/BF02061276