紫外躍遷 的英文怎麼說
中文拼音 [zǐwàiyuèqiān]
紫外躍遷
英文
ultraviolet transition-
The indirect optical gaps of ce02 - tioa complex films induce the absorption edges wavelengths red shift so that the films have excellent properties of ultraviolet absorbing
由於混合薄膜間接躍遷的能隙較小,導致了吸收邊向紅外區遷移,使薄膜有很好的紫外線吸收功能。The zno particles are excited by ultraviolet ( uv ) exciting light ( 365 nm ), showing two photoluminescence ( pl ) peaks / bands, centered at 2. 90 ev ( blue ) and 2. 23 ~ 2. 41 ev ( yellow - green ), respectively. the intensity of the yellow - green band was reduced after the product had been annealed in n2 and o2 at 350 c for 1h. ultraviolet visible absorption spectrum shows that the zno absorbs ultraviolet light intensely
對于復合h ps zno結構的發光機制,認為是納米h價帶中的電子在紫外光的激發下,躍遷到zno的導帶,從而處于激發態,由於多孔硅的導帶比氧化鋅的導帶低, zno導帶中處于激發態的電子很快躍竄到多孔硅的導帶,然後再與h價帶中的空穴發生復合,發出可見光。
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