کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
728617 | 1461411 | 2015 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis Structural and optical properties of CdTe-nanocrystals thin films grown by chemical synthesis](/preview/png/728617.png)
By mans of a chemical synthesis technique stoichiometric CdTe-nanocrystals thin films were prepared on glass substrates at 70 °C. First, Cd(OH)2 films were deposited on glass substrates, then these films were immersed in a growing solution prepared by dissolution of Te in hydroxymethane sulfinic acid to obtain CdTe. The structural analysis indicates that CdTe thin films have a zinc-blende structure. The average nanocrystal size was 19.4 nm and the thickness of the films 170 nm. The Raman characterization shows the presence of the longitudinal optical mode and their second order mode, which indicates a good crystalline quality. The optical transmittance was less than 5% in the visible region (400–700 nm). The compositional characterization indicates that CdTe films grew with Te excess.
Journal: Materials Science in Semiconductor Processing - Volume 35, July 2015, Pages 144–148