Photostrukturierbare Hydrosilylierung von porösem Silicium

Die Funktionalisierung hydridterminierter Oberflächen von porösem und von einkristallinem Silicium mit organischen Verbindungen gelang durch elektrochemische Reduktion von organischen Iodiden und Bromiden (siehe Schema). Diese neue Methode ist schnell und effizient, und es wird eine hohe Oberflächenbedeckung mit funktionalisierten und nichtfunktionalisierten Alkyl‐ und Benzylgruppen in wenigen Minuten erreicht.

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Oberflächenmodifikation von porösem Silicium durch elektrochemische Reduktion organischer Halogenide

Gurtner

Wun

Sailor

1999

Angewandte Chemie

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Direkte UV‐induzierte Funktionalisierung oberflächengebundener Hydroxygruppen mithilfe von Thiol‐Alkohol‐Chemie

et al. 2014

Angewandte Chemie

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Thermoresponsive and Photoluminescent Hybrid Silicon Nanoparticles by Surface‐Initiated Group Transfer Polymerization of Diethyl Vinylphosphonate

et al. 2014

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We present a method to combine the functional features of poly(diethyl vinylphosphonate) (PDEVP) and photoluminescent silicon nanocrystals. The polymer-particle hybrids were synthesized in three steps through surfaceinitiated group transfer polymerization using Cp 2 YCH 2 TMS-(thf) as a catalyst. This pathway of particle modification renders the nanoparticle surface stable against oxidation. Although SiNC properties are known to be sensitive toward transition metals, the hybrid particles exhibit red photoluminescence in water. The temperature-dependent coiling of PDEVP results in a change of the hydrodynamic radius of the hybrid particles in water. To the best of our knowledge, this is the first example of controlled catalytic polymerization reactions on a silicon nanocrystal surface.

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Photostrukturierbare Hydrosilylierung von porösem Silicium

Cited by 7 publications

References 22 publications

Oberflächenmodifikation von porösem Silicium durch elektrochemische Reduktion organischer Halogenide

Oberflächenmodifikation von porösem Silicium durch elektrochemische Reduktion organischer Halogenide

Direkte UV‐induzierte Funktionalisierung oberflächengebundener Hydroxygruppen mithilfe von Thiol‐Alkohol‐Chemie

Thermoresponsive and Photoluminescent Hybrid Silicon Nanoparticles by Surface‐Initiated Group Transfer Polymerization of Diethyl Vinylphosphonate

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