Rafi Shikler's Lab

The Optoelectronic Organic Semiconductor Devices Laboratory (OOSDL)

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Our lab is a part of the School of Electrical and Computer Engineering at the Ben Gurion University of the Negev. We have set a theoretical and experimental platform for the study of the relations between measurable macroscopic and microscopic quantities in working organic semiconductors based optoelectronic devices. We study organic light emitting diodes (OLED) aiming to understand and control their time response. We are interested in large scale organic photovoltaics (OPV) and specifically the role played by the contacts. We study repeatability of organic thin-film-transistors (OTFT) fabrication processes and develop layouts and logic to handle the observed variations to allow safe implementation. We design and fabricated 2D and 3D dimensions organic and metal structures for the manipulation of light in the visible to IR region. We use verity of equipment in the research for both fabrication and characterization of the devices. The lab is equipped with wet-benches, glove-box that contains a thermal evaporator. Polymers and metal nano-particles are deposited using an ink-jet printer. Electrical characteristion of the devices is done using semiconductor analyzer, B1500 and high-sensitive source-measure-units (SMU). Optical measurements are conducted using a variety of light sources, a monochromator and fast-response detectors (sub-nano second). Chemical and metallurgical analysis is done with our AFM-RAMAN system. We also have access to all the fabrication and characterization equipment of the university nano-center. The experimental work is complemented by 2D and 3D simulation of optical and electrical processes in the devices using our heavy-duty computers equipped with state-of-the-art GPUs.