CJCU

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (3): 527.doi: 10.7503/cjcu20120656

• Article: Inorganic Chemistry • Previous Articles     Next Articles

Comparative Study of YBCO Films Grown on Biaxially Textured Ni Substrate and LAO Substrate by Photo-assisted Metal Organic Chemical Vapor Deposition

LI Shan-Wen1, LI Wei1, LI Guo-Xing1, ZHANG Bao-Lin1, CHOU Pen-Chu1, TAO Bo-Wan2, GAO Zhong-Min3   

  1. 1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China;
    2. State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;
    3. College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2012-07-12 Online:2013-03-10 Published:2013-02-18

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Abstract:

A comparative study of YBa2Cu3O7-x(YBCO) films grown on biaxially textured Ni substrates [using CeO2/YSZ/Y2O3(YSZ is Y stabilized ZrO2) as buffer layers] and LaAlO3(100)[LAO(100)] substrates by photo-assisted metal organic chemical vapor deposition(MOCVD) was carried out. It is found that the growing temperature of YBCO film grown on Ni substrate is lower about 30 ℃ than that on LAO substrate. Besides, the growth rate on Ni substrate is higher than that on LAO. The phenomena can be explained by the fact that the thermal conduction of Ni substrate is better than LAO. The critical superconducting current density Jc of YBCO films grown on Ni substrate and LAO substrate are about 0.5 and 1.8 MA/cm2, respectively.

Key words: Yba2Cu3O7-x(YBCO), Ni substrate, Metal organic chemical vapor deposition(MOCVD), Photo-assisted MOCVD

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