کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1813417 | 1025635 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Growth and electrical properties of ZnO nanorod arrays prepared by chemical spray pyrolysis Growth and electrical properties of ZnO nanorod arrays prepared by chemical spray pyrolysis](/preview/png/1813417.png)
Chemical spray pyrolysis was applied to grow ZnO nanorod arrays from zinc chloride solutions with pH=2 and 5 on glass/ITO substrate at 480 and 550 °C. The obtained structures were characterized by their morphological, electrical and PL properties. According to SEM, deposition of acidic solutions retards coalescence of the growing crystals. The charge carrier density in ZnO nanorods was determined from the C–V characteristics of ZnO/Hg Schottky barrier. Carrier densities ∼1015 cm−3 and slightly above 1016 cm−3 were recorded for ZnO deposited at 550 and 480 °C, respectively. According to PL studies, intense UV-emission is characteristic of ZnO independent of growth temperature, the concentration of oxygen vacancy related defects is lower in ZnO nanorods deposited at 550 °C. Solution pH has no influence on carrier density and PL properties.
Journal: Physica B: Condensed Matter - Volume 404, Issue 22, 1 December 2009, Pages 4422–4425