As the pursuit for higher performance and lower cost photovoltaics, and for new applications of optoelectronic devices moves beyond crystalline silicon, there are many unique opportunities for materials research into hybrid organic-inorganic, and organic semiconductors. This dissertation focuses on both hybrid organic-inorganic materials and organic materials for optoelectronic applications. In...
The microwave, optical, and electro-optic properties of epitaxial barium titanate thin films grown on (100) MgO substrates and photonic crystal electro-optic modulators fabricated on these films were investigated to demonstrate the applicability of these devices for telecommunication and data networks. The electrical and electro-optical properties were characterized up to modulation...
The dependence of the electro-optic (EO) properties on the field-dependent domain structure in epitaxial polydomain BaTiO<sub>3</sub> thin films was investigated. Models of both the field-dependent electronic polarization and the EO response and their dependence on domain structure were developed. The agreement of these models with measured polarization and EO data...