کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7832757 | 1503512 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
GaN nanocolumns fabricated by self-assembly Ni mask and its enhanced photocatalytic performance in water splitting
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
We investigate the influence of Gallium Nitride (GaN) nanocolumns on the water splitting. The results show that with the GaN nanocolumns diameters decreasing from 250 to 170â¯nm, the photocurrents for the water splitting increase from 0.12 to 0.29â¯mA/cm2. The highest photocurrent is â¼2.8 times higher than that of the planar GaN. The increase is mainly related to the surface states, which will lead to a band bending and help to separate the photo-generated carriers more effectively. Furthermore, with the diameters decreasing, it will reduce the distance for the photo-generated carriers to the surface, which will suppress the recombination and increase the photocatalytic performance during the transport process. The work provides a cost-effective way for the applications of GaN nanocolumns in highly efficient water splitting.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 462, 31 December 2018, Pages 310-315
Journal: Applied Surface Science - Volume 462, 31 December 2018, Pages 310-315
نویسندگان
Xin Xi, Chao Yang, Haicheng Cao, Zhiguo Yu, Jin Li, Shan Lin, Zhanhong Ma, Lixia Zhao,