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Self-assembly Of Nanoparticles In Photonic Crystal Cavities For Optoelectronic Devices

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Self-assembly Of Nanoparticles In Photonic Crystal Cavities For Optoelectronic Devices

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Title: Self-assembly Of Nanoparticles In Photonic Crystal Cavities For Optoelectronic Devices
Author: Thiruvengadam, Geetha
Abstract: Photonic crystals (PhC) offer many advantages in optoelectronics field. The focus of this thesis is to investigate a self assembly process for the formation of thin film based one-dimensional PhC and the integration of nanoparticles with two-dimensional PhC. Nanoparticles like SiO2, TiO2, PolyStyrene, and PbSe (with different surface properties) were subjected to different experiments. Various techniques, such as spin coating, immersion technique, evaporation induced assembly technique, have been carried out by varying parameters like time, temperature, position of the substrate, etc.,. An optimized method for the fabrication of 1D PhC was found to be evaporation induced Self-Assembly method by varying temperature. For 2D PhC, a process was developed based on immersion technique and subsequent surface cleaning, where SiO2 and PbSe nanoparticles are back filled into the air holes of 2D PhC. A theoretical study of radius of nanoparticles in 1D and forces acting on nanoparticles in 2D has been discussed.
URI: http://hdl.handle.net/10106/127
Date: 2007-08-23
External Link: https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=259

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