Photophysical properties of luminescent silicon nanoparticles surface-modified with organic molecules via hydrosilylation
| Autor: | Seiichi Watanabe, Yasuchika Hasegawa, Junya Ishioka, Yuichi Kitagawa, Mari Miyano, Akira Kawashima, Satoshi Wada, Ayako Nakajima, Takayuki Nakanishi, Tamaki Shibayama |
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| Rok vydání: | 2015 |
| Předmět: |
inorganic chemicals
Silicon Chemical substance Materials science Luminescence Hydrosilylation Surface Properties chemistry.chemical_element Nanoparticle Nanotechnology 02 engineering and technology Alkenes Naphthalenes 010402 general chemistry Photochemistry Ligands complex mixtures 01 natural sciences Styrene chemistry.chemical_compound Molecule Physical and Theoretical Chemistry Particle Size technology industry and agriculture Silanes equipment and supplies 021001 nanoscience & nanotechnology Photochemical Processes 0104 chemical sciences stomatognathic diseases chemistry Nanoparticles Quantum Theory 0210 nano-technology Science technology and society |
| Zdroj: | Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology. 15(1) |
| ISSN: | 1474-9092 |
| Popis: | Luminescent silicon nanoparticles have attracted considerable attention for their potential uses in various applications. Many approaches have been reported to protect the surface of silicon nanoparticles and prevent their easy oxidation. Various air-stable luminescent silicon nanoparticles have been successfully prepared. However, the effect of interactions of the π-electron system with the silicon surface on the excited state properties of silicon nanoparticles is unclear. In this study, we have successfully prepared silicon nanoparticles protected with three organic compounds (styrene, 1-decene, and 1-vinyl naphthalene) and have examined their photophysical properties. The ligand π-electron systems on the silicon surface promoted the light harvesting ability for the luminescence through a charge transfer transition between the protective molecules and silicon nanoparticles and also enhanced the radiative rate of the silicon nanoparticles. |
| Databáze: | OpenAIRE |
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