Ethiraj, Anita S. ; Hebalkar, Neha ; Kharrazi, Sharmin ; Urban, J. ; Sainkar, S. R. ; Kulkarni, S. K. (2005) Photoluminescent core-shell particles of organic dye in silica Journal of Luminescence, 114 (1). pp. 15-23. ISSN 0022-2313
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00222...
Related URL: http://dx.doi.org/10.1016/j.jlumin.2004.11.005
Abstract
Using a single silica precursor, Rhodamine 6G organic dye molecules have been entrapped in silica particles resulting into core-shell particles of ~500 nm diameter. Energy dispersive X-ray analysis, X-ray photoelectron spectroscopy and transmission electron microscopy analysis reveals that dye molecules are trapped inside the silica particles. Photoluminescence investigations show that highly luminescent and photostable core-shell particles are formed. Such core-shell particles can be easily suspended in water and would be useful for a variety of applications. However, there is a blue shift in the photoluminescence wavelength in case of core-shell particles compared to bare dye powder sample.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Core-shell; Nanoparticles; Tetraethylorthosilicate (TEOS); RHO6G Dye; Photoemission; Luminescence |
| ID Code: | 17954 |
| Deposited On: | 17 Nov 2010 13:27 |
| Last Modified: | 04 Jun 2011 08:43 |
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