Optoelectronic properties of thin film organic/inorganic hybrid devices

Abstract

Thin film hybrid structures based on organic conjugated polymers and II-VI inorganic semiconductors were fabricated using spin-coating, evaporation and pulsed- laser deposition. These structures provide many advantages for optoelectronic applications, such as combining the high charge carrier mobilities in inorganic polycrystalline thin films and high photo-sensitivity, intense photoluminescence, and ease of deposition of conjugated molecules. The optoelectronic properties of a promising hetero-pairing, a cadmium sulfide and a diisoquinoline perylene derivative device, were studied in detail. The device is very suitable for photovoltaic applications, but exhibits a varying concentration of interface defects depending on the formation process.