Control of the initial growth in atomic layer deposition of Pt films by surface pretreatment

Title
Control of the initial growth in atomic layer deposition of Pt films by surface pretreatment
Authors
편정준조철진백승협강종윤김진상정두석김성근
Keywords
initial growth; nucleation behavior; atomic layer deposition; Pt; surface pretreatment
Issue Date
2015-07
Publisher
Nanotechnology
Citation
VOL 26, 1-9
Abstract
The controllability of the nucleation behavior of Pt in atomic layer deposition (ALD) by surface pretreatments with H2O, H2S, and NH3 was investigated. The H2O pretreatment on SiO2 and TiO2 surfaces had little effect on the nucleation of Pt. The H2S pretreatment on the SiO2 and TiO2 surfaces significantly delayed the nucleation of Pt on them, while the NH3 pretreatment on the TiO2 surface led to fluent nucleation of Pt. In particular, a continuous Pt film was successfully formed even at an ultrathin thickness of approximately 2.2 nm by NH3 pretreatment. This work suggests that the pretreatment with H2S and NH3 is an efficient way to control the nucleation of Pt in ALD without the support of any reactive species, such as plasma or O3. Such a strategy enables the easy control of the size and distribution density of Pt nanoparticles for a wide range of applications.
URI
http://pubs.kist.re.kr/handle/201004/49970
ISSN
09574484
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE