Chemical Research in Chinese Universities ›› 1996, Vol. 12 ›› Issue (1): 92-101.

• Articles • Previous Articles     Next Articles

Mass Transport of β-Diketonate Precursors for MOCVD of YBa2Cu3O7-δHigh TcSuperconducting Thin Films

MENG Guang-yao, YUAN Zhi-hao, YANG Ping-hua, PENG Ding-kun   

  1. Department of Materials Science &. Engineering,University of Science & Technology of China, Hefei, 230026
  • Received:1995-04-20 Online:1996-01-24 Published:2011-08-17

Abstract: Mass transport of Y(dpm)2Ba(dpm)5·OH·2Ho and Cu(dpm)2by a carrier gas(argon) was theoretically considered and experimentally studied as a function of the system with operating parameters including temperature, carrier gas flow rate and system pressure. The experimental results are in a good agreement with the theoretical prediction. The mechanism of mass transport of these organometallic precursors and their use for YBCO film stoichiometry control and reproducibility are discussed.

Key words: MOCVD, High Tcthin films, β-Diketonate precursor, Vaporization rate, Mass transport