Preparation and Evaluation of Pb(Zr·Ti)O3 Thin Films by Metalorganic Chemical Vapor Deposition

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Copyright (c) 1992 The Japan Society of Applied Physics
, , Citation Hajime Tomonari et al 1992 Jpn. J. Appl. Phys. 31 2998 DOI 10.1143/JJAP.31.2998

1347-4065/31/9S/2998

Abstract

Dipivaloylmethane (DPM) metalorganic precursors, Pb(DPM)2, Zr(DPM)4 and Ti(OPri)2(DPM)2, are used as starting materials in the metalorganic chemical vapor deposition (MOCVD) method for the preparation of Pb(ZrxTi1-x)O3 (PZT) thin films. The films are deposited at the rate of 150 to 700 Å/min under atmospheric pressure and reduced pressure of 10∼30 Torr. The deposition rate is about ten times as high as that of the conventional sputtering method. The dielectric constant of the film (X=0.2) on a Pt/Si substrate is about 300 at room temperature. This value agrees with that of ceramic or sputtered films.

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10.1143/JJAP.31.2998