In situ time-resolved X-ray reflectivity study of self-assembly from solution

被引：50

作者：

Richter, AG ^{[1
]}

Durbin, MK ^{[1
]}

Yu, CJ ^{[1
]}

Dutta, L ^{[1
]}

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

来源：

LANGMUIR | 1998年 / 14卷 / 21期

关键词：

D O I：

10.1021/la980371h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have studied the formation of octadecyltrichlorosilane (OTS) monolayers on Si(111) surfaces, using X-ray reflectivity at the solution-substrate interface. We find that the thickness of the OTS layer remains at similar to 25 Angstrom throughout the entire growth process. The electron density of the deposited layer increases monotonically, from very close to that of the solution to that of a densely packed OTS monolayer. We do not observe any increased roughness at the OTS-solution interface of a partially deposited monolayer. This means that the molecules are vertical when deposited and that the films undergo "island-type" growth.

引用

页码：5980 / 5983

页数：4

共 28 条

[1] THE EXISTENCE OF STRUCTURE PROGRESSIONS AND WETTING TRANSITIONS IN INTERMEDIATELY DISORDERED MONOLAYER ALKYL CHAIN ASSEMBLIES [J].

ALLARA, DL ;

PARIKH, AN ;

JUDGE, E .

JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (02) :1761-1764

[2] EVIDENCE FOR A UNIQUE CHAIN ORGANIZATION IN LONG-CHAIN SILANE MONOLAYERS DEPOSITED ON 2 WIDELY DIFFERENT SOLID SUBSTRATES [J].

ALLARA, DL ;

PARIKH, AN ;

RONDELEZ, F .

LANGMUIR, 1995, 11 (07) :2357-2360

[3] MOISTURE ABSORPTION CHARACTERISTICS OF ORGANOSILOXANE SELF-ASSEMBLED MONOLAYERS [J].

ANGST, DL ;

SIMMONS, GW .

LANGMUIR, 1991, 7 (10) :2236-2242

[4] FTIR AND AFM STUDIES OF THE KINETICS AND SELF-ASSEMBLY OF ALKYLTRICHLOROSILANES AND (PERFLUOROALKYL)TRICHLOROSILANES ONTO GLASS AND SILICON [J].

BANGA, R ;

YARWOOD, J ;

MORGAN, AM ;

EVANS, B ;

KELLS, J .

LANGMUIR, 1995, 11 (11) :4393-4399

[5] In-situ FTIR studies of the kinetics and self assembly of alkyl and perfluoroalkyl trichlorosilanes on silicon [J].

Banga, R ;

Yarwood, J ;

Morgan, AM ;

Evans, B ;

Kells, J .

THIN SOLID FILMS, 1996, 284 :261-266

[6] DETERMINATION OF THE ORDERING OF ALKYLHALOGENOSILANES ON A SILICON SUBSTRATE USING FTIR-ATR SPECTROSCOPY [J].

BANGA, R ;

YARWOOD, J ;

MORGAN, AM .

LANGMUIR, 1995, 11 (02) :618-622

[7] HOW ARE THE WETTING PROPERTIES OF SILANATED SURFACES AFFECTED BY THEIR STRUCTURE - AN ATOMIC-FORCE MICROSCOPY STUDY [J].

BARRAT, A ;

SILBERZAN, P ;

BOURDIEU, L ;

CHATENAY, D .

EUROPHYSICS LETTERS, 1992, 20 (07) :633-638

[8] An AFM study of the effects of silanization temperature, hydration, and annealing on the nucleation and aggregation of condensed OTS domains on mica [J].

Britt, DW ;

Hlady, V .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 178 (02) :775-784

[9] EVIDENCE OF A TRANSITION-TEMPERATURE FOR THE OPTIMUM DEPOSITION OF GRAFTED MONOLAYER COATINGS [J].

BRZOSKA, JB ;

SHAHIDZADEH, N ;

RONDELEZ, F .

NATURE, 1992, 360 (6406) :719-721

[10] THERMALLY INDUCED DISORDER IN ORGANIZED ORGANIC MONOLAYERS ON SOLID SUBSTRATES [J].

COHEN, SR ;

NAAMAN, R ;

SAGIV, J .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (14) :3054-3056

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