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Wang, Ke, Wang, Qi and Chao, Yimin 
ORCID: https://orcid.org/0000-0002-8488-2690
(2012)
Simple fabrication of nanostructured silicon and photoluminescence.
Applied Physics A, 109 (2).
pp. 437-440.
ISSN 0947-8396
Abstract
Porous Si (PS) was fabricated simply by electrochemical anodic etching of a Si wafer. By a combination of SEM, EDX and infrared spectrum measurements hydrogen-terminated crystalline Si surfaces were identified. Transparent Si nanocolloids were obtained via thermally-initiated hydrosilation of the hydrogenated Si surfaces reaction with unsaturated 1-undecene. In contrast to weak luminescence in the hydrogenated PS dispersed in toluene, intense luminescence was observed in the Si nanocolloid. In the Si nanocolloid, both strong luminescence and long-term stability can be correlated with alkylated passivation, as formation of Si–C bonds identified in infrared spectrum. Additionally, the oxidation effect was noticeable in affecting the luminescence of nano-Si during the process.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Chemistry |
| Depositing User: | Users 2731 not found. |
| Date Deposited: | 08 Jan 2013 12:44 |
| Last Modified: | 10 Nov 2022 15:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/40713 |
| DOI: | 10.1007/s00339-012-7045-9 |
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