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Titolo:
HEAT-INDUCED PHASE-SEPARATION OF SELF-ASSEMBLED MONOLAYERS OF A FLUOROCARBON-HYDROCARBON ASYMMETRIC DISULFIDE ON A AU(111) SURFACE
Autore:
ISHIDA T; YAMAMOTO S; MOTOMATSU M; MIZUTANI W; TOKUMOTO H; HOKARI H; AZEHARA H; FUJIHARA M; KOJIMA I;
Indirizzi:
JOINT RES CTR ATOM TECHNOL,ANGSTROM TECHNOL PARTNERSHIP,1-1-4 HIGASHITSUKUBA IBARAKI 305 JAPAN JRCAT,NATL INST ADV INTERDISCIPLINARY RES TSUKUBA IBARAKI 305 JAPAN TOKYO INST TECHNOL,FAC BIOSCI & BIOTECHNOL,DEPT BIOMOL ENGN,MIDORI KUYOKOHAMA KANAGAWA 226 JAPAN NATL INST MAT & CHEM RES TSUKUBA IBARAKI 305 JAPAN
Titolo Testata:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
fascicolo: 6B, volume: 36, anno: 1997,
pagine: 3909 - 3912
SICI:
0021-4922(1997)36:6B<3909:HPOSMO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
GOLD; SPECTROSCOPY; STABILITY; FILMS; THIOL;
Keywords:
SELF-ASSEMBLED MONOLAYER (SAM); DIMER; PHASE SEPARATION; GOLD (AU); SCANNING TUNNELING MICROSCOPY (STM); FRICTION FORCE MICROSCOPY (FFM);
Tipo documento:
Article
Natura:
Periodico
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
T. Ishida et al., "HEAT-INDUCED PHASE-SEPARATION OF SELF-ASSEMBLED MONOLAYERS OF A FLUOROCARBON-HYDROCARBON ASYMMETRIC DISULFIDE ON A AU(111) SURFACE", JPN J A P 1, 36(6B), 1997, pp. 3909-3912

Abstract

Heat-induced phase separation of fluorocarbon-hydrocarbon self-assembled monolayers (SAMs) on a Au(111) surface was studied by scanning tunneling microscopy (STM), atomic force microscopy (AFM) and friction force microscopy (FFM). Phase-separated domains were depressed by 0.3 nmwith a lateral dimension of 20-200 nm. The friction forces on the higher parts were smaller than those on the lower domains. The higher parts were assigned to the hydrocarbon chains, because the fluorocarbon chains should have a larger friction force acting on them than the hydrocarbon chains against the silicon nitride tip. Phase separation suggests cleavaging of the S-S bonds of disulfides in the SAMs. XPS measurements clearly showed an increase in the isolated Au-S binding species,suggesting the existence of the thiolate (monomer).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/11/20 alle ore 21:29:46