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EnglishHybrid organic-inorganic waveguides based on ZnO-(3-glycidoxypropil)trimethoxisilane (GPTS) have been fabricated by sol-gel route. A transparent sol of ZnO was added to the GPTS host and the resulting sol was deposited on silica substrates by spin coating technique. Waveguides with different molar composition (100-x)GPTS-xZnO (x = 10, 20, 30) were investigated by different diagnostic techniques. Morphological measurements were carried out by means of an AFM apparatus, and a roughness of few nanometers was estimated for all the waveguides. Optical properties such as refractive index, thickness, number of propagating modes and attenuation coefficient were measured at 632.8, 543.5, 1319 and 1542 nm by the prism coupling technique as a function of the ZnO content. Photoluminescence measurements, upon excitation at 325 nm, showed a large luminescence band in the region between 350 and 600 nm with a main peak centered at about 380 nm, due to the presence of ZnO nanoparticles. © 2009 Elsevier B.V. All rights reserved.
Preparation and characterization of ZnO particles embedded in organic-inorganic planar waveguide by sol-gel route / Chiappini, A.; Armellini, C.; Chiasera, A.; Ferrari, M.; Guider, R.; Jestin, Y.; Minati, L.; Moser, E.; Nunzi Conti, G.; Pelli, S.; Retoux, R.; Righini, G. C.; Speranza, G.. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - 355:18-21(2009), pp. 1132-1135. [10.1016/j.jnoncrysol.2009.01.050]
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| Titolo: | Preparation and characterization of ZnO particles embedded in organic-inorganic planar waveguide by sol-gel route | |
| Autori: | Chiappini, A.; Armellini, C.; Chiasera, A.; Ferrari, M.; Guider, R.; Jestin, Y.; Minati, L.; Moser, E.; Nunzi Conti, G.; Pelli, S.; Retoux, R.; Righini, G. C.; Speranza, G. | |
| Autori Unitn: | ||
| Titolo del periodico: | JOURNAL OF NON-CRYSTALLINE SOLIDS | |
| Anno di pubblicazione: | 2009 | |
| Numero e parte del fascicolo: | 18-21 | |
| Codice identificativo Scopus: | 2-s2.0-66349099569 | |
| Codice identificativo WOS: | WOS:000267713100030 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jnoncrysol.2009.01.050 | |
| Handle: | http://hdl.handle.net/11572/344726 | |
| Citazione: | Preparation and characterization of ZnO particles embedded in organic-inorganic planar waveguide by sol-gel route / Chiappini, A.; Armellini, C.; Chiasera, A.; Ferrari, M.; Guider, R.; Jestin, Y.; Minati, L.; Moser, E.; Nunzi Conti, G.; Pelli, S.; Retoux, R.; Righini, G. C.; Speranza, G.. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - 355:18-21(2009), pp. 1132-1135. [10.1016/j.jnoncrysol.2009.01.050] | |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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