Chin. Phys. Lett.  2009, Vol. 26 Issue (11): 117302    DOI: 10.1088/0256-307X/26/11/117302
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Influence of Oxygen Pressure on Structural and Sensing Properties of β-Ga2O3 Nanomaterial by Thermal Evaporation
MA Hai-Lin1,2, FAN Duo-Wang1,2
1National Engineering Research Center of Green Coating Technology and Equipment, Lanzhou Jiaotong University, Lanzhou 7300702MOE Key Lab of Opto-electronic Technology and Intelligence Control, Lanzhou Jiaotong University, Lanzhou 730070
Cite this article:   
MA Hai-Lin, FAN Duo-Wang 2009 Chin. Phys. Lett. 26 117302
Download: PDF(496KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract We prepare the gallium oxide (β-Ga2O3) nanomaterials from gallium and oxygen by thermal evaporation in the argon atmosphere and research their oxygen sensing under UV illumination with different oxygen pressures. X-ray diffraction reveals that the synthesized product is monoclinic gallium oxide, it is further confirmed by electron diffraction of transmission electron microscope, and its morphology through the observation using scanning electron microscope reveals that β-Ga2O3 nanobelts with a breadth less than 100nm and length of several micrometers are synthesized under low oxygen pressure, while the nano/microbelts are synthesized under high oxygen pressure. Room-temperature oxygen sensing is tested under at 254nm illumination and it is found that the current decreases quickly first and then slowly with oxygen pressure from low to high.
Keywords: 73.20.At      73.25.+i      73.50.Gr     
Received: 30 July 2009      Published: 30 October 2009
PACS:  73.20.At (Surface states, band structure, electron density of states)  
  73.25.+i (Surface conductivity and carrier phenomena)  
  73.50.Gr (Charge carriers: generation, recombination, lifetime, trapping, mean free paths)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/10.1088/0256-307X/26/11/117302       OR      https://cpl.iphy.ac.cn/Y2009/V26/I11/117302
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
MA Hai-Lin
FAN Duo-Wang
[1] Ma H L et al 2008 Acta Phys. Sin. 57 7322 (inChinese)
[2] Wu X C et al 2000 Chem. Phys. Lett. 328 5
[3] Rustum R et al 1952 J. Am. Chem. Soc. 74 719
[4] Tippins H H 1965 Phys. Rev. A 140 316
[5] Nogales E et al 2005 Appl. Phys. Lett. 86113112
[6] Bezryadin A, Lau C N, Tinkham M 2000 Nature 404 971
[7] Feng P, Xue X Y et al 2006 Appl. Phys. Lett. 89 112114
[8] Sears G W 1953 Acta Metall. l 457
[9] Sears G W 1955 Acta Metal. 3 361
[10] Sears G W 1955 Acta Metall. 3 367
[11] Harwig T, Kellendonk F 1978 J. Solid State Chem. 24 255
[12] Jalilian R et al 2006 Chem. Phys. Lett. 426393
[13] Huang Y et al 2006 J. Phys. Chem. B 110 796
[14] Liu Y G, Feng P, Xue X Y, Shi S L, Fu X Q, Wang C andWang T H 2007 Appl. Phys. Lett. 90 042109
[15] Heo Y W, Tien L C, Norton D P and Pearton S J 2004 Appl. Phys. Lett. 85 11
[16] Collins R J and Thomas D G 1958 Phys. Rev. 388 112
[17] Zhu J, Zhu G P et al 2008 Chin. Phys. Lett. 26 014204
[18] Yun J N, Zhang Z Y and Zhang F C 2008 Chin. Phys.Lett. 25 3364
[19] Lu S, Shang J X and Zhang Y 2007 Chin. Phys. Lett. 24 3229
Related articles from Frontiers Journals
[1] HUANG Xiao-Ming, WU Chen-Fei, LU Hai, XU Qing-Yu, ZHANG Rong, ZHENG You-Dou. Impact of Interfacial Trap Density of States on the Stability of Amorphous InGaZnO-Based Thin-Film Transistors[J]. Chin. Phys. Lett., 2012, 29(6): 117302
[2] LIU Shan-Yu, ZHANG Wen-Tao, WENG Hong-Ming, ZHAO Lin, LIU Hai-Yun, JIA Xiao-Wen, LIU Guo-Dong, DONG Xiao-Li, ZHANG Jun, MAO Zhi-Qiang, CHEN Chuang-Tian, XU Zu-Yan, DAI Xi, FANG Zhong, ZHOU Xing-Jiang. Effect of Cleaving Temperature on the Surface and Bulk Fermi Surface of Sr2RuO4 Investigated by High Resolution Angle-Resolved Photoemission[J]. Chin. Phys. Lett., 2012, 29(6): 117302
[3] GAO Jun-Ning,JIE Wan-Qi**,YUAN Yan-Yan,ZHA Gang-Qiang,XU Ling-Yan,WU Heng,WANG Ya-Bin,YU Hui,ZHU Jun-Fa. In-Situ SRPES Study on the Band Alignment of (0001)CdS/CdTe Heterojunction[J]. Chin. Phys. Lett., 2012, 29(5): 117302
[4] MA Peng,JIN Zhi**,GUO Jian-Nan,PAN Hong-Liang,LIU Xin-Yu,YE Tian-Chun,WANG Hong,WANG Guan-Zhong. Chemical Vapour Deposition Graphene Radio-Frequency Field-Effect Transistors[J]. Chin. Phys. Lett., 2012, 29(5): 117302
[5] LU Yong-Fang, SHI Li-Qun**, DING Wei, LONG Xing-Gui. First-Principles Study of Hydrogen Impact on the Formation and Migration of Helium Interstitial Defects in hcp Titanium[J]. Chin. Phys. Lett., 2012, 29(1): 117302
[6] SUN Hong-Guo**, ZHOU Zhong-Xiang, YUAN Cheng-Xun, YANG Wen-Long, WANG He. Structural, Electronic and Optical Properties of KTa0.5Nb0.5O3 Surface: A First-Principles Study[J]. Chin. Phys. Lett., 2012, 29(1): 117302
[7] LI Deng-Feng **, GUO Zhi-Cheng, LI Bo-Lin, DONG Hui-Ning, XIAO Hai-Yan . Structural and Electronic Properties of Sulfur-Passivated InAs(001) ( 2×6 ) Surface[J]. Chin. Phys. Lett., 2011, 28(8): 117302
[8] CHEN Cong, NING Ting-Yin, WANG Can**, ZHOU Yue-Liang, ZHANG Dong-Xiang, WANG Pei, MING Hai, YANG Guo-Zhen . Rectifying Characteristics and Transport Behavior in a Schottky Junction of CaCu 3Ti4O12 and Pt[J]. Chin. Phys. Lett., 2011, 28(8): 117302
[9] ZHAO Xiang-Fu**, HAN Ping, ZHANG Rong, ZHENG You-Dou . Influence of Fluorine on the Conductivity and Oxidation of Silicon Nanomembranes after Hydrofluoric Acid Treatment[J]. Chin. Phys. Lett., 2011, 28(8): 117302
[10] GONG Sai, WANG Yue-Hua**, ZHAO Xin-Yin, ZHANG Min, ZHAO Na, DUAN Yi-Feng . Structural, Electronic and Optical Properties of BiAl xGa1−xO3 (x=0, 0.25, 0.5 and 0.75)[J]. Chin. Phys. Lett., 2011, 28(8): 117302
[11] ZHAO Na, WANG Yue-Hua**, ZHAO Xin-Yin, ZHANG Min, GONG Sai . Electronic Structure and Optical Properties of SrBi2A2O9(A=Nb,Ta)[J]. Chin. Phys. Lett., 2011, 28(7): 117302
[12] WANG Jin, WANG Hui, ZHAO Wang, MA Yan, LI Wan-Cheng, XIA Xiao-Chuan, SHI Zhi-Feng, ZHAO Long, ZHANG Bao-Lin, DONG Xin**, DU Guo-Tong . Crystalline, Optical and Electrical Properties of NiZnO Thin Films Fabricated by MOCVD[J]. Chin. Phys. Lett., 2011, 28(7): 117302
[13] ZHAO Xin-Yin, WANG Yue-Hua**, ZHANG Min, ZHAO Na, GONG Sai, CHEN Qiong . First-Principles Calculations of the Structural, Electronic and Optical Properties of BaZrxTi1−xO3 (x=0, 0.25, 0.5, 0.75)[J]. Chin. Phys. Lett., 2011, 28(6): 117302
[14] CHEN Yi-Xin**, SHEN Guang-Di, ZHU Yan-Xu, GUO Wei-Ling, LI Jian-Jun . Efficiency-enhanced AlGaInP Light-Emitting Diodes with Thin Window Layers and Coupled Distributed Bragg Reflectors[J]. Chin. Phys. Lett., 2011, 28(6): 117302
[15] WANG Zhi . First-Principles Study of the Local Magnetic Moment on a N-Doped Cu2O (111) Surface[J]. Chin. Phys. Lett., 2011, 28(12): 117302
Viewed
Full text


Abstract