کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7996601 | 1516207 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced field emission properties from graphene-TiO2/DLC nanocomposite films prepared by ultraviolet-light assisted electrochemical deposition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The graphene-TiO2/diamond-like carbon (G-TiO2/DLC) nanocomposite films were prepared on silicon substrates by a simple ultraviolet (UV) light assisted electrochemical deposition process using N, N-dimethylformamide (DMF) as carbon source and TiO2 nanoparticles/graphene sheets as incorporated reagents. The results show that the TiO2 and graphene sheets are uniformly dispersed into the DLC matrix. The UV-light illumination not only affects the morphology of the films, but also promotes the field emission properties, probably due to the effect of photoinduced electron-hole pairs produced from TiO2. The G-TiO2/DLC film exhibits the lowest turn-on field of 5.2 V/μm and the highest current density of 2950 μA/cm2 at the electric field of 8.2 V/μm. This enhancement of field emission properties are investigated based on the surface morphology of the self-assembled nanostructures, the improved conductivity, together with the reduced work function.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 686, 25 November 2016, Pages 588-592
Journal: Journal of Alloys and Compounds - Volume 686, 25 November 2016, Pages 588-592
نویسندگان
Jinlong Jiang, Jinfang Du, Qiong Wang, Xia Zhang, Weijun Zhu, Ruishan Li, Hua Yang,