Highly photostable dye entrapped core-shell particles

Ethiraj, Anita S.; Kharrazi, Sharmin; Hebalcar, Neha; Urban, Joachim; Sainkar, S. R.; Kulkarni, S. K.

doi:10.1016/j.matlet.2007.03.030

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Highly photostable dye entrapped core-shell particles

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Urban, Joachim
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Ethiraj, A. S., Kharrazi, S., Hebalcar, N., Urban, J., Sainkar, S. R., & Kulkarni, S. K. (2007). Highly photostable dye entrapped core-shell particles. Materials Letters, 61(25), 4738-4742. doi:10.1016/j.matlet.2007.03.030.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-FFAF-6

Abstract

Organic dye namely Coumarin 7 has been entrapped in silica particles using a single silica precursor viz. tetraethylorthosilicate. Both bare Coumarin 7 dye and dye incorporated core–shell particles were studied. Investigations of these core–shell composites were carried out using different characterization techniques such as energy dispersive X-ray analysis, X-ray photoelectron spectroscopy and transmission electron microscopy. It has been shown that the photostability of dye molecules is improved along with an increase in photoluminescence.