Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15327
Title: Synthesis and characterization of polyhedral oligomeric silsesquioxane based nanocomposites with different sizes and light-emitting properties
Authors: LIU LEI
Keywords: polyhedral oligomeric silsesquioxane, POSS, organic-inorganic hybrid nanocomposite, light-emitting, quantum confinement, thermal properties
Issue Date: 2-Apr-2006
Source: LIU LEI (2006-04-02). Synthesis and characterization of polyhedral oligomeric silsesquioxane based nanocomposites with different sizes and light-emitting properties. ScholarBank@NUS Repository.
Abstract: In this thesis, novel organic-inorganic hybrid nanocomposites based on polyhedral oligomeric silsesquioxane (POSS) were designed and synthesized to study the structure-property relationship and light-emitting properties. Initially four different lengths of ending alkyl chains on benzene rings were attached to POSS core to adjust the resultant particle sizes. Secondly, conjugated part with bithiophene derivatives and benzene rings were attached to the POSS core to build light-emitting POSS dots. After confirmation of the chemical structures, these nanocomposites were studied by XRD to determine the particle size. Thermal analysis methods, UV-PL spectra and AFM were used to characterize the nanocomposites and a blue light-emitting nanocomposite was achieved.
URI: http://scholarbank.nus.edu.sg/handle/10635/15327
Appears in Collections:Master's Theses (Open)

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