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Title: Method for fabrication of ceramic dielectric films on copper foils

Abstract

The present invention provides copper substrate coated with a lead-lanthanum-zirconium-titanium (PLZT) ceramic film, which is prepared by a method comprising applying a layer of a sol-gel composition onto a copper foil. The sol-gel composition comprises a precursor of a ceramic material suspended in 2-methoxyethanol. The layer of sol-gel is then dried at a temperature up to about 250.degree. C. The dried layer is then pyrolyzed at a temperature in the range of about 300 to about 450.degree. C. to form a ceramic film from the ceramic precursor. The ceramic film is then crystallized at a temperature in the range of about 600 to about 750.degree. C. The drying, pyrolyzing and crystallizing are performed under a flowing stream of an inert gas.

Inventors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1363751
Patent Number(s):
9,679,705
Application Number:
14/631,536
Assignee:
UCHICAGO ARGONNE, LLC ORNL
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Feb 25
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Ma, Beihai, Narayanan, Manoj, Dorris, Stephen E., and Balachandran, Uthamalingam. Method for fabrication of ceramic dielectric films on copper foils. United States: N. p., 2017. Web.
Ma, Beihai, Narayanan, Manoj, Dorris, Stephen E., & Balachandran, Uthamalingam. Method for fabrication of ceramic dielectric films on copper foils. United States.
Ma, Beihai, Narayanan, Manoj, Dorris, Stephen E., and Balachandran, Uthamalingam. Wed . "Method for fabrication of ceramic dielectric films on copper foils". United States. doi:. https://www.osti.gov/servlets/purl/1363751.
@article{osti_1363751,
title = {Method for fabrication of ceramic dielectric films on copper foils},
author = {Ma, Beihai and Narayanan, Manoj and Dorris, Stephen E. and Balachandran, Uthamalingam},
abstractNote = {The present invention provides copper substrate coated with a lead-lanthanum-zirconium-titanium (PLZT) ceramic film, which is prepared by a method comprising applying a layer of a sol-gel composition onto a copper foil. The sol-gel composition comprises a precursor of a ceramic material suspended in 2-methoxyethanol. The layer of sol-gel is then dried at a temperature up to about 250.degree. C. The dried layer is then pyrolyzed at a temperature in the range of about 300 to about 450.degree. C. to form a ceramic film from the ceramic precursor. The ceramic film is then crystallized at a temperature in the range of about 600 to about 750.degree. C. The drying, pyrolyzing and crystallizing are performed under a flowing stream of an inert gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 14 00:00:00 EDT 2017},
month = {Wed Jun 14 00:00:00 EDT 2017}
}

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Works referenced in this record:

Amorphous dielectric capacitors on silicon
patent-application, August 2001


Light control unit
patent-application, June 2006


Lead zirconate titanate thin films directly on copper electrodes for ferroelectric, dielectric and piezoelectric applications
journal, February 2005

  • Kingon, Angus I.; Srinivasan, Sudarsan
  • Nature Materials, Vol. 4, Issue 3, p. 233-237
  • DOI: 10.1038/nmat1334

Importance Of Solution Chemistry In Preparing Sol–Gel PZT Thin Films Directly On Copper Surfaces
journal, January 2008

  • Losego, Mark D.; Ihlefeld, Jon F.; Maria, Jon-Paul
  • Chemistry of Materials, Vol. 20, Issue 1, p. 303-307
  • DOI: 10.1021/cm070999q

Chemical solution deposition of ferroelectric lead lanthanum zirconate titanate films on base-metal foils
journal, January 2008

  • Ma, Beihai; Kwon, Do-Kyun; Narayanan, Manoj
  • Journal of Electroceramics, Vol. 22, Issue 4, p. 383-389
  • DOI: 10.1007/s10832-007-9410-1