Abstract
Synthesis of passivated silicon surfaces with tunable properties requires formation of a monolayer that includes a synthetically useful functional group, such as an alkene. Thus, Si(111) surfaces have been chemically and electrically passivated by attachment of an allyl monolayer. The structure of the monolayer was confirmed using infrared spectroscopy. The allyl-functionalized surface exhibited resistance to oxidation and had a low density of surface trap states. Metal-catalyzed reactions, in particular, Heck coupling and ruthenium-catalyzed olefin cross-metathesis, allowed attachment of small molecules despite the steric constraints of the dense surface-bound layer. Allyl-terminated silicon surfaces thus offer a means of attaching a variety of chemical moieties to a silicon surface through a short linking group, enabling applications in energy conversion, catalysis, and sensing.
| Original language | English |
|---|---|
| Pages (from-to) | 2228-2233 |
| Number of pages | 6 |
| Journal | Chemistry of Materials |
| Volume | 20 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Mar 25 2008 |
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ASJC Scopus subject areas
- Materials Chemistry
- Materials Science(all)
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Passivation and secondary functionalization of allyl-terminated Si(111) surfaces. / Lewis, Nathan S; Plass, Katherine E.; Liu, Xueliang; Brunschwig, Bruce S.
In: Chemistry of Materials, Vol. 20, No. 6, 25.03.2008, p. 2228-2233.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Passivation and secondary functionalization of allyl-terminated Si(111) surfaces
AU - Lewis, Nathan S
AU - Plass, Katherine E.
AU - Liu, Xueliang
AU - Brunschwig, Bruce S.
PY - 2008/3/25
Y1 - 2008/3/25
N2 - Synthesis of passivated silicon surfaces with tunable properties requires formation of a monolayer that includes a synthetically useful functional group, such as an alkene. Thus, Si(111) surfaces have been chemically and electrically passivated by attachment of an allyl monolayer. The structure of the monolayer was confirmed using infrared spectroscopy. The allyl-functionalized surface exhibited resistance to oxidation and had a low density of surface trap states. Metal-catalyzed reactions, in particular, Heck coupling and ruthenium-catalyzed olefin cross-metathesis, allowed attachment of small molecules despite the steric constraints of the dense surface-bound layer. Allyl-terminated silicon surfaces thus offer a means of attaching a variety of chemical moieties to a silicon surface through a short linking group, enabling applications in energy conversion, catalysis, and sensing.
AB - Synthesis of passivated silicon surfaces with tunable properties requires formation of a monolayer that includes a synthetically useful functional group, such as an alkene. Thus, Si(111) surfaces have been chemically and electrically passivated by attachment of an allyl monolayer. The structure of the monolayer was confirmed using infrared spectroscopy. The allyl-functionalized surface exhibited resistance to oxidation and had a low density of surface trap states. Metal-catalyzed reactions, in particular, Heck coupling and ruthenium-catalyzed olefin cross-metathesis, allowed attachment of small molecules despite the steric constraints of the dense surface-bound layer. Allyl-terminated silicon surfaces thus offer a means of attaching a variety of chemical moieties to a silicon surface through a short linking group, enabling applications in energy conversion, catalysis, and sensing.
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U2 - 10.1021/cm7024679
DO - 10.1021/cm7024679
M3 - Article
VL - 20
SP - 2228
EP - 2233
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 6
ER -