کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5350874 | 1503663 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced field emission from Ti3+ self-doped TiO2 nanotube arrays synthesized by a facile cathodic reduction process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A facile strategy of cathodic reduction has been developed to successfully prepare Ti3+ self-doped TiO2 nanotube field emitter arrays (TNAs). This strategy significantly reduces the requirements of instruments and resources compared to the conventional strategies and can controllable introduction of Ti3+ sites (oxygen vacancies) into TNAs with morphology retention. The introduced Ti3+ sites (oxygen vacancies) served as electron donors, can substantially improve the conductivity and decrease the work function of TNAs. Importantly, compared to pristine TNAs, the Ti3+ self-doped TNAs show enhanced field emission (FE) properties including sharply decreased turn-on field from 12.49 to 2.67 V/μm and large FE current density of 4.31 mA/cm2 at 4.45 V/μm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 301, 15 May 2014, Pages 525-529
Journal: Applied Surface Science - Volume 301, 15 May 2014, Pages 525-529
نویسندگان
Wei-Dong Zhu, Cheng-Wei Wang, Jian-Biao Chen, Yan Li, Jian Wang,