کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8001277 | 1516283 | 2014 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An efficient method to modulate the structure, morphology and properties of WO3 through niobium doping
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An efficient method to modulate the structure, morphology and properties of WO3 through niobium doping An efficient method to modulate the structure, morphology and properties of WO3 through niobium doping](/preview/png/8001277.png)
چکیده انگلیسی
Doped tungsten oxide has been reported to provide enhanced photocatalytic and photoelectronic properties in catalyst and smart window applications. Here Nb-doped WO3 was synthesized to investigate the effect of doping on composition, structure and optical properties. It is shown that niobium ion implantation in WO3 structure results in the morphological evolution from nanosheet into nanoparticle. 5 at% niobium ion doping induces the phase transformation from monoclinic γ-WO3 to monoclinic ε-WO3. UV-vis spectrum shows that niobium implantation results in the increase of the band gap and the shift of absorption edge. Photoelectric measurement indicates that photocurrent increases firstly and then decreases under UV irradiation. The results reported in this study will be useful in formulating optimum doping process to enhance desired photoelectric properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 610, 15 October 2014, Pages 132-137
Journal: Journal of Alloys and Compounds - Volume 610, 15 October 2014, Pages 132-137
نویسندگان
Aihua Yan, Changsheng Xie, Fei Huang, Shunping Zhang, Shaoliang Zhang,