Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
Bonding self-assembled, compact organophosphonate monolayers to the native oxide surface of silicon
Date
2003-12-24
Author
Hanson, EL
Schwartz, J
Nickel, B
Koch, N
Danışman, Mehmet Fatih
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
6
views
0
downloads
A new method is described to prepare strongly bonded, compact monolayer films of alkyl- or arylphosphonates on the native oxide surface of Si (SiO2/Si). This method is illustrated for octadecyl- and alpha-quarterthiophene-2-phosphonates. For both cases, AFM shows comprehensive coverage of the SiO2/Si surface. The thickness of the continuous film of 4TP/SiO2/Si was measured both by AFM and by X-ray reflectivity to be ca. 18 Angstrom. Direct gravimetric analysis shows surface coverage by alpha-quarterthiophene-2-phosphonate to be about 0.66 nmol/cm(2), which corresponds to molecular packing in the film close to that of crystalline alpha-quarterthiophene. Coverage by octadecylphosphonate was ca. 0.90 nmol/cm(2), corresponding to a cross-sectional area of about 18.5 Angstrom(2)/molecule, consistent with close-packed alkyl chains.
Subject Keywords
Colloid and Surface Chemistry
,
Biochemistry
,
General Chemistry
,
Catalysis
URI
https://hdl.handle.net/11511/47515
Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
DOI
https://doi.org/10.1021/ja035956z
Collections
Department of Chemistry, Article