Abstract
Silicon nanostructures are promising materials for inclusion into inexpensive, yet efficient, solar cells. Surface passivation becomes increasingly important in such structures, and these designs may require chemical linking of silicon interfaces. To address these concerns, a means of passivating silicon surfaces using small, unsaturated organic moieties has been developed and applied to model silicon (111) surfaces. These monolayers protect the surface from oxidation while eliminating interfacial trap states that induce the recombination of photo-induced charge carriers. In addition, these organic groups can undergo secondary reactions, allowing chemical elaboration of the surface while maintaining a passivating underlayer. Here we discuss the passivating properties of unsaturated groups bound to the silicon surface, including vinyl and allyl groups, and we explore their use in metal-catalyzed coupling reactions commonly employed with solution-phase olefins.
| Original language | English |
|---|---|
| Title of host publication | ACS National Meeting Book of Abstracts |
| Publication status | Published - 2007 |
| Event | 234th ACS National Meeting - Boston, MA, United States Duration: Aug 19 2007 → Aug 23 2007 |
Other
| Other | 234th ACS National Meeting |
|---|---|
| Country | United States |
| City | Boston, MA |
| Period | 8/19/07 → 8/23/07 |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Unsaturated organic monolayers on silicon : Surface passivation and reactivity. / Plass, Katherine E.; Brunschwig, Bruce B.; Lewis, Nathan S.
ACS National Meeting Book of Abstracts. 2007.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Unsaturated organic monolayers on silicon
T2 - Surface passivation and reactivity
AU - Plass, Katherine E.
AU - Brunschwig, Bruce B.
AU - Lewis, Nathan S
PY - 2007
Y1 - 2007
N2 - Silicon nanostructures are promising materials for inclusion into inexpensive, yet efficient, solar cells. Surface passivation becomes increasingly important in such structures, and these designs may require chemical linking of silicon interfaces. To address these concerns, a means of passivating silicon surfaces using small, unsaturated organic moieties has been developed and applied to model silicon (111) surfaces. These monolayers protect the surface from oxidation while eliminating interfacial trap states that induce the recombination of photo-induced charge carriers. In addition, these organic groups can undergo secondary reactions, allowing chemical elaboration of the surface while maintaining a passivating underlayer. Here we discuss the passivating properties of unsaturated groups bound to the silicon surface, including vinyl and allyl groups, and we explore their use in metal-catalyzed coupling reactions commonly employed with solution-phase olefins.
AB - Silicon nanostructures are promising materials for inclusion into inexpensive, yet efficient, solar cells. Surface passivation becomes increasingly important in such structures, and these designs may require chemical linking of silicon interfaces. To address these concerns, a means of passivating silicon surfaces using small, unsaturated organic moieties has been developed and applied to model silicon (111) surfaces. These monolayers protect the surface from oxidation while eliminating interfacial trap states that induce the recombination of photo-induced charge carriers. In addition, these organic groups can undergo secondary reactions, allowing chemical elaboration of the surface while maintaining a passivating underlayer. Here we discuss the passivating properties of unsaturated groups bound to the silicon surface, including vinyl and allyl groups, and we explore their use in metal-catalyzed coupling reactions commonly employed with solution-phase olefins.
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UR - http://www.scopus.com/inward/citedby.url?scp=37349015303&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0841269556
SN - 9780841269552
BT - ACS National Meeting Book of Abstracts
ER -