TY - JOUR
T1 - Role and mechanism of island formation in chemisorption
AU - Becker, O. M.
AU - Ben-Shaul, A.
PY - 1988
Y1 - 1988
N2 - Chemisorption on solid surfaces is treated as a combination of a seeding process, whereby molecules adsorb directly onto vacant sites, and an island-growth mechanism initiated by physisorption over occupied sites followed by lateral migration towards vacant sites. It is argued that the islands are compact 2D (Eden) clusters, at marked variance with models which assume random distribution of the chemisorbed molecules. Simple general expressions are derived for the sticking probability and adsorption isotherms. Numerical results are presented for several cases of interest.
AB - Chemisorption on solid surfaces is treated as a combination of a seeding process, whereby molecules adsorb directly onto vacant sites, and an island-growth mechanism initiated by physisorption over occupied sites followed by lateral migration towards vacant sites. It is argued that the islands are compact 2D (Eden) clusters, at marked variance with models which assume random distribution of the chemisorbed molecules. Simple general expressions are derived for the sticking probability and adsorption isotherms. Numerical results are presented for several cases of interest.
UR - http://www.scopus.com/inward/record.url?scp=4243590132&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.61.2859
DO - 10.1103/PhysRevLett.61.2859
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:4243590132
SN - 0031-9007
VL - 61
SP - 2859
EP - 2862
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
ER -