Hole traps and Cu-related shallow donors in ZnO nanorods revealed by temperature-dependent photoluminescence.
نویسندگان
چکیده
This work presents positive experimental evidence for the hole traps in ZnO nanorods, which take part in recombination and change the thermal quenching of Cu-related green emission. The evolution of Cu impurity upon annealing, as well as the formation of Cu-related shallow donors with an energy level of ∼0.11 eV are also indicated by temperature-dependent photoluminescence.
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عنوان ژورنال:
- Physical chemistry chemical physics : PCCP
دوره 15 20 شماره
صفحات -
تاریخ انتشار 2013