Abstract
Well controlled and characterized organic functionalization is a necessary precondition for the fabrication of many silicon-based molecular electronic and sensing devices. Of particular interest are organic modifications that incorporate bromine since heavy atoms can be directly interrogated by X-ray radiation and organohalides provide synthetic handles through which more chemically elaborate structures may be covalently bound to silicon. This paper specifically considers the functionalization of hydrogen passivated silicon surfaces with 4-bromostyrene. X-ray photoelectron spectroscopy confirms the reaction of 4-bromostyrene with monohydride Si(1 0 0) and Si(1 1 1) surfaces such that the bromine moiety is preserved on top of the organic adlayer. In addition, ultra-high vacuum scanning tunneling microscopy reveals that the 4-bromostyrene molecules assemble into one-dimensional nanostructures on the Si(1 0 0)-2 × 1:H surface. Overall, these experimental results demonstrate that styrene derivatives serve as effective organic molecules for the chemical functionalization of hydrogen passivated silicon surfaces.
| Original language | English |
|---|---|
| Pages (from-to) | 144-150 |
| Number of pages | 7 |
| Journal | Chemical Physics |
| Volume | 326 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jul 11 2006 |
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Keywords
- 4-Bromostyrene
- Bromine
- Hydrogen
- Molecular electronics
- Passivation
- Scanning tunneling microscopy
- Sensing
- Si(1 0 0)
- Si(1 1 1)
- Silicon
- STM
- Styrene
- UHV
- Ultra-high vacuum
- X-ray photoelectron spectroscopy
- XPS
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Atomic and Molecular Physics, and Optics
Cite this
Bromine functionalized molecular adlayers on hydrogen passivated silicon surfaces. / Basu, R.; Kinser, C. R.; Tovar, J. D.; Hersam, Mark C.
In: Chemical Physics, Vol. 326, No. 1, 11.07.2006, p. 144-150.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Bromine functionalized molecular adlayers on hydrogen passivated silicon surfaces
AU - Basu, R.
AU - Kinser, C. R.
AU - Tovar, J. D.
AU - Hersam, Mark C
PY - 2006/7/11
Y1 - 2006/7/11
N2 - Well controlled and characterized organic functionalization is a necessary precondition for the fabrication of many silicon-based molecular electronic and sensing devices. Of particular interest are organic modifications that incorporate bromine since heavy atoms can be directly interrogated by X-ray radiation and organohalides provide synthetic handles through which more chemically elaborate structures may be covalently bound to silicon. This paper specifically considers the functionalization of hydrogen passivated silicon surfaces with 4-bromostyrene. X-ray photoelectron spectroscopy confirms the reaction of 4-bromostyrene with monohydride Si(1 0 0) and Si(1 1 1) surfaces such that the bromine moiety is preserved on top of the organic adlayer. In addition, ultra-high vacuum scanning tunneling microscopy reveals that the 4-bromostyrene molecules assemble into one-dimensional nanostructures on the Si(1 0 0)-2 × 1:H surface. Overall, these experimental results demonstrate that styrene derivatives serve as effective organic molecules for the chemical functionalization of hydrogen passivated silicon surfaces.
AB - Well controlled and characterized organic functionalization is a necessary precondition for the fabrication of many silicon-based molecular electronic and sensing devices. Of particular interest are organic modifications that incorporate bromine since heavy atoms can be directly interrogated by X-ray radiation and organohalides provide synthetic handles through which more chemically elaborate structures may be covalently bound to silicon. This paper specifically considers the functionalization of hydrogen passivated silicon surfaces with 4-bromostyrene. X-ray photoelectron spectroscopy confirms the reaction of 4-bromostyrene with monohydride Si(1 0 0) and Si(1 1 1) surfaces such that the bromine moiety is preserved on top of the organic adlayer. In addition, ultra-high vacuum scanning tunneling microscopy reveals that the 4-bromostyrene molecules assemble into one-dimensional nanostructures on the Si(1 0 0)-2 × 1:H surface. Overall, these experimental results demonstrate that styrene derivatives serve as effective organic molecules for the chemical functionalization of hydrogen passivated silicon surfaces.
KW - 4-Bromostyrene
KW - Bromine
KW - Hydrogen
KW - Molecular electronics
KW - Passivation
KW - Scanning tunneling microscopy
KW - Sensing
KW - Si(1 0 0)
KW - Si(1 1 1)
KW - Silicon
KW - STM
KW - Styrene
KW - UHV
KW - Ultra-high vacuum
KW - X-ray photoelectron spectroscopy
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=33745501203&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745501203&partnerID=8YFLogxK
U2 - 10.1016/j.chemphys.2005.12.023
DO - 10.1016/j.chemphys.2005.12.023
M3 - Article
AN - SCOPUS:33745501203
VL - 326
SP - 144
EP - 150
JO - Chemical Physics
JF - Chemical Physics
SN - 0301-0104
IS - 1
ER -