Spontaneous Ordering of Oxide Nanostructures-Reference-Cited by-同舟云学术

Spontaneous Ordering of Oxide Nanostructures

Published:2000-03-24 Issue:5461 Volume:287 Page:2235-2237
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Aggarwal S.¹,Monga A. P.¹,Perusse S. R.¹,Ramesh R.¹,Ballarotto V.²,Williams E. D.²,Chalamala B. R.³,Wei Y.³,Reuss R. H.³

Affiliation:

1. Department of Materials and Nuclear Engineering,

2. Department of Physics, University of Maryland, College Park, MD 20742, USA.

3. Flat Panel Display Division, Motorola Inc., 7700 South River Parkway, Tempe, AZ 85284, USA.

Abstract

We report the spontaneous formation of uniformly distributed arrays of “tips” (tall conical hillocks) upon oxidation of palladium (Pd) thin films. The formation of the palladium oxide tips depended on the thickness and granularity of the Pd film and on annealing and oxidation conditions. As the Pd film thickness increased from 40 to 200 nanometers, the average height of the tips increased from 0.5 to 1.2 micrometers, their height distribution became broader, and their density decreased from 55 × 10 6 to 12 × 10 6 per square centimeter. Enhanced photoelectron emission from locations corresponding to the tips suggests their possible use in field emission applications.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference17 articles.

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2. F. R. N. Nabarro in Report of a Conference on Strength of Solids (The Physical Society London 1948) p. 75.

3. Herring C., J. Appl. Phys. 21, 437 (1950).

4. Coble R. L., J. Appl. Phys. 34, 1679 (1963).

5. Temple D., Mat. Sci. Eng. R24, 185 (1999).

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