Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
28
pubmed:dateCreated
2009-6-24
pubmed:abstractText
We report on the ability to control the size and density of In droplets on GaAs(100) substrates at near room temperatures using solid source molecular beam epitaxy. We specifically demonstrate the height, diameter and density control of In droplets as functions of substrate temperature (T(sub)) and monolayer (ML) coverage. For a range of density (approximately 10(9)-10(10) cm(-2)), the growth window is revealed to be between 20 and 70 degrees C. For a fixed ML coverage, the size and density of droplets can be controlled by controlling the T(sub). For a fixed T(sub), by controlling the ML coverage, droplet size and density can be controlled. Even at near room temperatures (20-70 degrees C), In atoms are extremely sensitive to surface diffusion and this enables the control of the size and density of droplets. This study provides an aid to understanding the formation of In droplets at near room temperatures and can find applications in the formation of quantum structures and/or nanostructures based on droplet epitaxy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1361-6528
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
285602
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Size and density control of In droplets at near room temperatures.
pubmed:affiliation
Department of Electrical Engineering, Kwangwoon University, Nowon-Gu, Seoul, Korea.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.