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| Effect of annealing temperature and annealing atmosphere on the structure and optical properties of ZnO thin films on sapphire (0001) substrates by magnetron sputtering |
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cuilin0512: ½ð±Ò+1, ¡ïÓаïÖú 2013-09-05 21:30:18
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cuilin0512: ½ð±Ò+1, ¡ïÓаïÖú 2013-09-05 21:30:18
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Effect of annealing temperature and annealing atmosphere on the structure and optical properties of ZnO thin films on sapphire (0001) substrates by magnetron sputtering ×÷Õß: Lin Cui; Hua-Yu Zhang; Gui-Gen Wang; Fang-Xu Yang; Xu-Ping Kuang; Rui Sun; Jie-Cai Han À´Ô´³ö°æÎï: Applied Surface Science ¾í: 258 ÆÚ: 7 Ò³: 2479-85 ³ö°æÄê: 15 Jan. 2012 DOI: 10.1016/j.apsusc.2011.10.076 ÕªÒª: ZnO thin films were epitaxially grown on sapphire (0001) substrates by radio frequency magnetron sputtering. ZnO thin films were then annealed at different temperatures in air and in various atmospheres at 800degC, respectively. The effect of the annealing temperature and annealing atmosphere on the structure and optical properties of ZnO thin films are investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), photoluminescence (PL). A strong (002) diffraction peak of all ZnO thin films shows a polycrystalline hexagonal wurtzite structure and high preferential c-axis orientation. XRD and AFM results reveal that the better structural quality, relatively smaller tensile stress, smooth, uniform of ZnO thin films were obtained when annealed at 800degC in N 2. Room temperature PL spectrum can be divided into the UV emission and the Visible broad band emission. The UV emission can be attributed to the near band edge emission (NBE) and the Visible broad band emission can be ascribed to the deep level emissions (DLE). By analyzing our experimental results, we recommend that the deep-level emission correspond to oxygen vacancy (V O) and interstitial oxygen (O i). The biggest ratio of the PL intensity of UV emission to that of visible emission (INBE/IDLE) is observed from ZnO thin films annealed at 800degC in N 2. Therefore, we suggest that annealing temperature of 800degC and annealing atmosphere of N 2 are the most suitable annealing conditions for obtaining high quality ZnO thin films with good luminescence performance. [All rights reserved Elsevier]. Èë²ØºÅ: 12869464 ÎÄÏ×ÀàÐÍ: Journal Paper ÓïÖÖ: English ´¦ÀíÀàÐÍ: Experimental ÊÜ¿ØË÷Òý: annealing; atomic force microscopy; deep levels; II-VI semiconductors; interstitials; photoluminescence; semiconductor epitaxial layers; sputter deposition; tensile strength; texture; vacancies (crystal); wide band gap semiconductors; X-ray diffraction; zinc compounds ·ÇÊÜ¿ØË÷Òý: annealing; optical properties; structural properties; thin films; sapphire (0001) substrates; epitaxial growth; radio frequency magnetron sputtering; X-ray diffraction; XRD; atomic force microscopy; AFM; photoluminescence; polycrystalline hexagonal wurtzite structure; preferential c-axis orientation; tensile stress; near band edge emission; visible broad band emission; deep level emissions; oxygen vacancy; interstitial oxygen; temperature 800 degC; temperature 293 K to 298 K; ZnO; Al 2O 3 ·ÖÀà´úÂë: A6170A Annealing processes; A6170B Interstitials and vacancies; A6820 Solid surface structure; A6855 Thin film growth, structure, and epitaxy; A7155G Impurity and defect levels in II-VI and III-V semiconductors; A7855E Photoluminescence in II-VI and III-V semiconductors; A7865K Optical properties of II-VI and III-V semiconductors (thin films/low-dimensional structures); A8115C Deposition by sputtering; B2550A Annealing processes in semiconductor technology; B4220 Luminescent materials; B0520B Sputter deposition; B2520D II-VI and III-V semiconductors ÊýÖµÊý¾ÝË÷Òý: temperature 1.07315E+03 K; temperature 2.93E+02 to 2.98E+02 K »¯Ñ§ÎïÖÊË÷Òý: ZnO/bin Zn/bin O/bin; Al2O3/sur Al2/sur O3/sur Al/sur O/sur Al2O3/bin Al2/bin O3/bin Al/bin O/bin ¹ú¼ÊרÀû·ÖÀà: C09K11/00 Luminescent, e.g. electroluminescent, chemiluminescent, materials; C21D1/26 Methods of annealing; C23C14/34 Sputtering; H01L21/02 Manufacture or treatment of semiconductor devices or of parts thereof; H01L21/70 Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in or on a common substrate or of specific parts thereof; Manufacture of integrated circuit devices or of specific parts thereof ×÷ÕßµØÖ·: Lin Cui; Hua-Yu Zhang; Gui-Gen Wang; Fang-Xu Yang; Xu-Ping Kuang; Rui Sun; Jie-Cai Han; Shenzhen Grad. Sch., Harbin Inst. of Technol., Shenzhen, China. ³ö°æÉÌ: Elsevier Science B.V., Netherlands Ñо¿·½Ïò: Crystallography; Physics; Spectroscopy; Materials Science; Engineering; Optics (ÓÉ Thomson Reuters Ìṩ) ²Î¿¼ÎÄÏ×Êý: 38 CODEN: ASUSEE ISSN: 0169-4332 ÎÄÏ׺Å: S0169-4332(11)01645-X |
5Â¥2013-09-03 13:26:21
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| ÊÇÕâ¸öºÅ£¬IDS ºÅ: 877FI |
2Â¥2013-09-03 10:59:51
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IDS ºÅ: 877FI ISSN: 0169-4332 http://apps.webofknowledge.com/f ... age=1&doc=3 |
3Â¥2013-09-03 11:09:36
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Effect of annealing temperature and annealing atmosphere on the structure and optical properties of ZnO thin films on sapphire (0 0 0 1) substrates by magnetron sputtering Èë²ØºÅ: WOS:000299162300043 ÎÄÏ×ÀàÐÍ: Article ÓïÖÖ: English ³ö°æÉÌ: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Web of Science Àà±ð: Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter Ñо¿·½Ïò: Chemistry; Materials Science; Physics IDS ºÅ: 877FI ISSN: 0169-4332 |
4Â¥2013-09-03 11:12:41













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