skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method of making nanopatterns and nanostructures and nanopatterned functional oxide materials

Patent ·
OSTI ID:1120121

Method for nanopatterning of inorganic materials, such as ceramic (e.g. metal oxide) materials, and organic materials, such as polymer materials, on a variety of substrates to form nanopatterns and/or nanostructures with control of dimensions and location, all without the need for etching the materials and without the need for re-alignment between multiple patterning steps in forming nanostructures, such as heterostructures comprising multiple materials. The method involves patterning a resist-coated substrate using electron beam lithography, removing a portion of the resist to provide a patterned resist-coated substrate, and spin coating the patterned resist-coated substrate with a liquid precursor, such as a sol precursor, of the inorganic or organic material. The remaining resist is removed and the spin coated substrate is heated at an elevated temperature to crystallize the deposited precursor material.

Research Organization:
Northwestern University, Evanston, IL, USA
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31-109-ENG-38
Assignee:
Northwestern University (Evanston, IL)
Patent Number(s):
8,647,814
Application Number:
11/805,546
OSTI ID:
1120121
Country of Publication:
United States
Language:
English

References (13)

Photolithographic and electron beam lithographic fabrication of micron and submicron three-dimensional arrays of electronically conductive polymers patent April 1995
Sol-gel precursor and method for formation of ferroelectric materials for integrated circuits patent May 2000
Electron beam lithography in nanoscale fabrication: recent development journal April 2003
Influence of annealing temperature on the formation and characteristics of sol-gel prepared ZnO films
  • Castanedo-Pérez, R.; Jiménez-Sandoval, O.; Jiménez-Sandoval, S.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 17, Issue 4 https://doi.org/10.1116/1.581895
journal July 1999
Fine undercut control in bilayer PMMA-P(MMA-MAA) resist system for e-beam lithography with submicrometer resolution conference August 1991
Polymer surface modification by plasmas and photons journal May 1996
Micro pattern formation of ceramic thin film by synthesis from aqueous solution using resist pattern as a mold journal November 2002
Microfabrication of Ceramics by Filling of Photoresist Molds journal September 2000
Two-Dimensional Ceramic Photonic Crystals Fabricated by a Solution Method journal October 2003
Directed Self-Assembly of Silica Nanoparticles into Nanometer-Scale Patterned Surfaces Using Spin-Coating journal August 2004
A Facile Approach to Directed Assembly of Patterns of Nanoparticles Using Interference Lithography and Spin Coating journal July 2004
Facile Scheme for Fabricating Solid-State Nanostructures Using E-Beam Lithography and Solution Precursors journal September 2005
Directed Fabrication of Radially Stacked Multifunctional Oxide Heterostructures Using Soft Electron-Beam Lithography journal February 2006

Cited By (1)