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BaTiO_3铁电薄膜的光致发光研究 被引量：1

Study on the photoluminescence of BaTiO_3 ferroelectric film
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摘要 以分析纯的乙酸钡和钛酸正四丁酯为前躯体溶液,冰乙酸为溶剂,乙酰丙酮为稳定剂,采用溶胶-凝胶法在硅基上制备了钛酸钡(BaTiO3)铁电薄膜。研究了BaTiO3铁电薄膜的光致发光性能。结果表明,室温下非晶态的BaTiO3铁电薄膜在蓝光激发下具有很强的光致发光现象。其中,经8h 673K退火处理的非晶BaTiO3铁电薄膜的光致发光性能最佳,当455nm光激发时,非晶薄膜在540～660nm内发出强烈的黄光,峰值波长为580～610nm,峰宽约30nm,发光强度随薄膜的厚度增加而增强。晶态BaTiO3铁电薄膜无任何发光现象。 BaTiO3 ferroelectric film was prepared on Si substrate by sol-gel method using barium acetate ana tetrabutyl titanate as precursor, glacial acetic acid as solvent,and acetylacetone as stabilizer. The photoluminescence PL of BaTiO3 ferroelectric film was studied. The results showed that intense photo-luminescence in amorphous BaTiO3 ferroelectric film excited by blue light was observed at room temperature. The film annealed at 673K for 8 hours has the best PL property. The emission band is from 540-660nm in the visible region. The peak wavelengths are from 580-610nm and the peak width is about 30nm. But the crystal one has no properties above.
作者 彭静 付勇华 徐智谋 欧阳逸冰 陈志伟 王双保 陈存华
机构地区 武汉科技大学理学院 武汉大学物理科学与技术学院 武汉光电国家实验室(筹) 华中科技大学光电子科学与工程学院 华中师范大学化学学院
出处 《功能材料》 EI CAS CSCD 北大核心 2009年第10期1609-1611,共3页 Journal of Functional Materials
基金 国家自然科学基金资助项目(60607006) 教育部留学回国基金资助项目(校20081667) 湖北省自然科学基金资助项目(2007ABA058)
关键词 BATIO3 铁电薄膜 光致发光 BaTiO3 ferroelectric film photoluminescence
分类号 O734.3 [理学—晶体学]
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参考文献8

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同被引文献14

  • 1李佳,于军,彭刚,王耘波,高俊雄,周文利.Sol-gel法制备Bi_(3.15)Nd_(0.85)Ti_3O_(12)铁电薄膜的性能研究[J].功能材料,2007,38(1):56-58. 被引量：2
  • 2Abazari M, Safari A, Bharadwaja S S N, et al. Dielectric and piezoelectric properties of lead-free CBi , Na ) Ti03- based thin films[J]. Appl Phys Lett, 2010, 96 (8): 082903.
  • 3Alonso-Sanjose D,Jimenez R, Bretos 1, et al. Lead-free ferroelectric (Na1/2 Bil/2 ) Ti03 -BaTi03 thin films in the morphotropic phase boundary composition: solution processing and properties[J].J Am Ceram Soc, 2009, 92 (0): 2218-2225.
  • 4Zheng XJ, He L, Zhou Y C, et al. Effects of europium content on the microstructural and ferroelectric properties of Bi4-.r Eu, Ti3 012 thin films[J]. Appl Phys Lett, 2006, 89(25): 252908.
  • 5Dong H, Zheng XJ, Li W, et al. The dielectric relaxation behavior of (Nao. 82 Ko. 18 ) o. 5 Bio. 5 Ti03 ferroelectric thin film[J].J Appl Phys , 2011, 110(2): 124109.
  • 6Yu T, Kwok K W, Chan H L W. The synthesis of leadfree ferroelectric Bio.5 Na., 5 Ti03 - Bio. 5 Ko. 3 Ti03 thin films by sol-gel method[J]. Mater Lett, 2007, 61(0): 2117- 2120.
  • 7Zheng XJ, Dai S H, Feng X, et al. Structural and electrical properties of (Nao. 83 Ko.13 )0.5 Bi, 5 Ti03 thin films deposited on LaNi03 and Pt bottom electrodes[J]. Appl Surf Sci, 2010, 256(10): 3316-3320.
  • 8Lai F r , LiJ F. Sol-gel processing of lead-free (Na,K) Nb03 ferroelectric films[J].J Sol-Gel Sci Technol , 2007, 42(3): 287-292.
  • 9Yan X, Ren W, Wu X Q, et al. Lead-free (K, Na) Nb03 ferroelectric thin films: preparation, structure and electrical properties[J].J Alloys Cornpd , 2010, 508( 1): 129-132.
  • 10Gong W, LiJ F, Chu X C. Effect of pyrolysis temperature on preferential orientation and electrical properties of sol-gel derived lead zirconate titanate films[J].J Eur Ceram Soc, 2004, 2400-11): 2977-2982.

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功能材料
2009年 第10期

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