光谱学与光谱分析 |
|
|
|
|
|
Low-Temperature-Dependent Characteristics of Raman Scattering in N-Type 4H-SiC |
MIAO Rui-xia1, ZHAO Ping1, LIU Wei-hong1, TANG Xiao-yan2* |
1. School of Electronic Engineering,Xi’an University of Postsand Telecommunications,Xi’an 710121,China 2. Key Laboratory for Wide Band-Gap Semiconductor Materials and Devices,School of Microelectronics,Xidian University,Xi’an 710071,China |
|
|
Abstract In the present paper, Raman scattering techniques for N-type 4H-SiC single crystal material were performed at the temperatures ranging from 30 to 300 K. These measurements revealed that the Raman phonon modes have a redshift and the linewidth gradually broadens with temperature increasing. Based on the experimental results, the reason for the redshift and broadening is discussed. With the temperature increasing, the lattice thermal vibration restoring force decreases with the lattice thermal vibration increasing, and the interaction between the atom and unit cell is weakened, resulting in the redshift of the acoustic phonon modes and optical phonon modes. The mean number of phonons increase with the temperature increasing, which leads to an increase in scattering probability, in result of decreasing the phonon lifetime. The linewidth and phonon lifetime is inversely proportional, so the linewidth gradually broadens with temperature increasing. Phonon mode intensity with increasing temperature showed different laws that the intensity of E2 (LA), E2 (TA), E1 (TA) and A1 (LA) phonon mode monotonously increases as the temperature increases, while the intensity of E2 (TO), E1(TO) and A1 (LO) phonon mode decreases after 138 K. The reason is that the high-energy phonons split into multiple lower energy phonons.
|
Received: 2013-03-17
Accepted: 2013-06-25
|
|
Corresponding Authors:
TANG Xiao-yan
E-mail: xytang@mail.xidian.edu.cn
|
|
[1] Elasser A. Pchow T. Prec. IEEE,2002,90: 969. [2] Waldrop J R,Grant R W,Wang Y C. Journal of Applied Physics,1992,72: 4757. [3] XU Jing-ping, LI Chun-xia, WU Hai-ping(徐静平, 李春霞, 吴海平). Acta Physica Sinica(物理学报), 2005, 54(6): 2918. [4] Chen Fengping, Zhang Yuming, Zhang Yimen. Chin. Phys. B,2012, 21(3): 037304. [5] Hyungtak K, Jpmgtae L, Ho-Young C. Journal of the Korean Physical Society, 2010, 56, 1523. [6] Ivanov P A, Potapov A S, Samsonova T P. Semiconductor, 2012, 46:532. [7] Yang Yintang, Han Ru, Wang Ping. Chinese Physics B,2008, 17(9):3459-05. [8] HAN Ru,FAN Xiao-ya,YANG Yin-tang(韩 茹,樊晓桠,杨银堂). Acta Physica Sinica(物理学报), 2010,59: 4261. [9] Smiss R A. Semiconductor(半导体). Translated by GAO Ding-san(高鼎三,译). Beijing: Science Press(北京:科学出版社),1987. 274. [10] XU Zhen-jia(许振嘉),Testing and Aanalysis on Semiconductor(半导体检测与分析). Beijing: Scinence Press(科学出版社),2007. 290. [11] Yan F W,Gao H Y,Zhang H X. Journal of Applied Physics,2007,101: 023506. |
[1] |
LI Jie, ZHOU Qu*, JIA Lu-fen, CUI Xiao-sen. Comparative Study on Detection Methods of Furfural in Transformer Oil Based on IR and Raman Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 125-133. |
[2] |
WANG Fang-yuan1, 2, HAN Sen1, 2, YE Song1, 2, YIN Shan1, 2, LI Shu1, 2, WANG Xin-qiang1, 2*. A DFT Method to Study the Structure and Raman Spectra of Lignin
Monomer and Dimer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 76-81. |
[3] |
XING Hai-bo1, ZHENG Bo-wen1, LI Xin-yue1, HUANG Bo-tao2, XIANG Xiao2, HU Xiao-jun1*. Colorimetric and SERS Dual-Channel Sensing Detection of Pyrene in
Water[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 95-102. |
[4] |
WANG Xin-qiang1, 3, CHU Pei-zhu1, 3, XIONG Wei2, 4, YE Song1, 3, GAN Yong-ying1, 3, ZHANG Wen-tao1, 3, LI Shu1, 3, WANG Fang-yuan1, 3*. Study on Monomer Simulation of Cellulose Raman Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 164-168. |
[5] |
WANG Lan-hua1, 2, CHEN Yi-lin1*, FU Xue-hai1, JIAN Kuo3, YANG Tian-yu1, 2, ZHANG Bo1, 4, HONG Yong1, WANG Wen-feng1. Comparative Study on Maceral Composition and Raman Spectroscopy of Jet From Fushun City, Liaoning Province and Jimsar County, Xinjiang Province[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 292-300. |
[6] |
LI Wei1, TAN Feng2*, ZHANG Wei1, GAO Lu-si3, LI Jin-shan4. Application of Improved Random Frog Algorithm in Fast Identification of Soybean Varieties[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3763-3769. |
[7] |
WANG Zhi-qiang1, CHENG Yan-xin1, ZHANG Rui-ting1, MA Lin1, GAO Peng1, LIN Ke1, 2*. Rapid Detection and Analysis of Chinese Liquor Quality by Raman
Spectroscopy Combined With Fluorescence Background[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3770-3774. |
[8] |
LIU Hao-dong1, 2, JIANG Xi-quan1, 2, NIU Hao1, 2, LIU Yu-bo1, LI Hui2, LIU Yuan2, Wei Zhang2, LI Lu-yan1, CHEN Ting1,ZHAO Yan-jie1*,NI Jia-sheng2*. Quantitative Analysis of Ethanol Based on Laser Raman Spectroscopy Normalization Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3820-3825. |
[9] |
LU Wen-jing, FANG Ya-ping, LIN Tai-feng, WANG Hui-qin, ZHENG Da-wei, ZHANG Ping*. Rapid Identification of the Raman Phenotypes of Breast Cancer Cell
Derived Exosomes and the Relationship With Maternal Cells[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3840-3846. |
[10] |
LI Qi-chen1, 2, LI Min-zan1, 2*, YANG Wei2, 3, SUN Hong2, 3, ZHANG Yao1, 3. Quantitative Analysis of Water-Soluble Phosphorous Based on Raman
Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3871-3876. |
[11] |
GUO He-yuanxi1, LI Li-jun1*, FENG Jun1, 2*, LIN Xin1, LI Rui1. A SERS-Aptsensor for Detection of Chloramphenicol Based on DNA Hybridization Indicator and Silver Nanorod Array Chip[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3445-3451. |
[12] |
ZHU Hua-dong1, 2, 3, ZHANG Si-qi1, 2, 3, TANG Chun-jie1, 2, 3. Research and Application of On-Line Analysis of CO2 and H2S in Natural Gas Feed Gas by Laser Raman Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3551-3558. |
[13] |
LIU Jia-ru1, SHEN Gui-yun2, HE Jian-bin2, GUO Hong1*. Research on Materials and Technology of Pingyuan Princess Tomb of Liao Dynasty[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3469-3474. |
[14] |
LI Wen-wen1, 2, LONG Chang-jiang1, 2, 4*, LI Shan-jun1, 2, 3, 4, CHEN Hong1, 2, 4. Detection of Mixed Pesticide Residues of Prochloraz and Imazalil in
Citrus Epidermis by Surface Enhanced Raman Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3052-3058. |
[15] |
ZHAO Ling-yi1, 2, YANG Xi3, WEI Yi4, YANG Rui-qin1, 2*, ZHAO Qian4, ZHANG Hong-wen4, CAI Wei-ping4. SERS Detection and Efficient Identification of Heroin and Its Metabolites Based on Au/SiO2 Composite Nanosphere Array[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3150-3157. |
|
|
|
|