Molecular Structure and Spectrum of GaN under the Radiation Fields | |
Lin Hua2; Li Bing-sheng4![]() | |
刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
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2018 | |
卷号 | 38期号:1页码:21-25 |
关键词 | Gallium nitride Radiation field Spectrum Density function theory |
ISSN号 | 1000-0593 |
DOI | 10.3964/j.issn.1000-0593(2018)01-0021-05 |
英文摘要 | Based on the density functional theory DFT/B3LYP at 6-311+ + g(d, p) level, the ground states of GaN molecule under different external electric fields were optimized. The influence of external electric field ranging from 0 to 0. 025 a. u. on the geometrical parameters, dipole moment, total energy, energy gap, Infrared spectrum, Raman spectrum and UV-VIS absorption spectrum intensity were studied. The results showed that the changes of molecular structure were strongly dependent on the applied electric field. As the electric field changed from 0 to 0. 025 a.u., the bond length of GaN molecular decreased, while the electric dipole moment was proved to be decreasing and the total molecular energy increased all the time. The energy gap of Eg was found to decrease with the increasing external field. The IR vibration spectrum of GaN molecule showed an observable blue shift and the Raman vibration spectrum appears blue shift phenomenon too. The oscillator strength of UV-VIS absorption spectrum was proved to be repeating the changes of the first decreasing and then increased. The ultraviolet absorption peak was red shifted with the increase of the field intensity. |
WOS关键词 | EXTERNAL ELECTRIC-FIELD |
WOS研究方向 | Spectroscopy |
语种 | 英语 |
出版者 | OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS |
WOS记录号 | WOS:000423649200004 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.186/handle/113462/47267] ![]() |
专题 | 近代物理研究所_先进核能材料研究室(ADS) |
通讯作者 | Li Bing-sheng; Liu Yu-zhu |
作者单位 | 1.Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China 3.Jiangsu Collaborat Innovat Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Lin Hua,Li Bing-sheng,Qin Chao-chao,et al. Molecular Structure and Spectrum of GaN under the Radiation Fields[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2018,38(1):21-25. |
APA | Lin Hua,Li Bing-sheng,Qin Chao-chao,Yin Wen-yi,&Liu Yu-zhu.(2018).Molecular Structure and Spectrum of GaN under the Radiation Fields.SPECTROSCOPY AND SPECTRAL ANALYSIS,38(1),21-25. |
MLA | Lin Hua,et al."Molecular Structure and Spectrum of GaN under the Radiation Fields".SPECTROSCOPY AND SPECTRAL ANALYSIS 38.1(2018):21-25. |
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