Work

Room Temperature Hydrosilylation of Silicon Nanocrystals with Bifunctional Terminal Alkenes

Year: 2013

Type: article

Abstract: H-terminated Si nanocrystals undergo room temperature hydrosilylation with bifunctional alkenes with distal polar moieties-ethyl ester, methyl ester, or carboxylic acids-without the aid of light or added catalyst. The passivated Si nanocrystals exhibit bright photoluminescence (PL) and disperse in polar solvents, including water. We propose a reaction mechanism in which ester or carboxylic acid groups facilitate direct nucleophilic attack of the highly curved Si surface of the nanocrystals by the alkene.

Source: Langmuir

DOI: 10.1021/la304874y

Authors: Yixuan Yu, Colin M. Hessel, Timothy D. Bogart, Matthew G. Panthani, Michael R. Rasch, Brian A. Korgel

Institutions: Texas Materials Institute, The University of Texas at Austin

Language: English

Topic: Silicon Nanostructures and Photoluminescence

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: Welch Foundation, National Cancer Institute

Award: Metal nanoparticle-mediated diagnosis, targeting, and treatment of cancer