Surface morphology of lead-based thin films and their properties

Surface morphology of lead-zirconate-titanate [PZT(52/48)] thin films prepared by sol-gel processing on Pt/Ti/ SiO 2 /Si substrates was studied. When the atomic ratio [Pb/(Zr+Ti)] of PZT gel films was 1, rosette structure was observed in the films after annealing at 600° C for one hour. The crystal...

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Veröffentlicht in:Japanese Journal of Applied Physics 1994-09, Vol.33 (9B), p.5196-5200
Hauptverfasser: ATSUKI, T, SOYAMA, N, SASAKI, G, YONEZAWA, T, OGI, K, SAMESHIMA, K, HOSHIBA, K, NAKAO, Y, KAMISAWA, A
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container_end_page 5200
container_issue 9B
container_start_page 5196
container_title Japanese Journal of Applied Physics
container_volume 33
creator ATSUKI, T
SOYAMA, N
SASAKI, G
YONEZAWA, T
OGI, K
SAMESHIMA, K
HOSHIBA, K
NAKAO, Y
KAMISAWA, A
description Surface morphology of lead-zirconate-titanate [PZT(52/48)] thin films prepared by sol-gel processing on Pt/Ti/ SiO 2 /Si substrates was studied. When the atomic ratio [Pb/(Zr+Ti)] of PZT gel films was 1, rosette structure was observed in the films after annealing at 600° C for one hour. The crystal structure of the rosette was identified as perovskite and that of the other area was nonperovskite, by electron diffraction analysis. Lead deficiency in the non-perovskite phase caused by lead diffusion into the bottom electrode was detected by energy dispersive X-ray spectroscopy and Auger electron spectroscopy. In order to prepare PZT films with a smooth surface, the following four means were efficient: addition of lead excess, rapid thermal annealing (RTA), adoption of buffer layer, and preparation of crystal nucleus on the substrate.
doi_str_mv 10.1143/jjap.33.5196
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source IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link
subjects Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
Solid surfaces and solid-solid interfaces
Surface structure and topography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
title Surface morphology of lead-based thin films and their properties
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