Chalcogenide Semiconductor Thin Films

Research in chalcogenide semiconductor thin films explores the synthesis, characterization, and application of materials composed of elements from Group 16 of the periodic table, such as sulfur, selenium, and tellurium, combined with metals or other semiconductors. Investigations focus on understanding the fundamental electronic, optical, and structural properties of these materials when deposited as thin films. Techniques employed include various deposition methods like sputtering, evaporation, and chemical bath deposition, followed by advanced characterization using microscopy, spectroscopy, and electrical measurements. Sub-fields include the study of their potential for photovoltaic devices, infrared detectors, thermoelectric materials, and phase-change memory applications.

This research has direct relevance to Arkansas's economic development, particularly in sectors like advanced manufacturing and technology. The development of novel semiconductor materials can support the growth of electronics industries and contribute to energy efficiency solutions. Furthermore, advancements in infrared detection and imaging technologies can find applications in areas such as environmental monitoring and public safety. The unique properties of chalcogenides also offer potential for new sensor technologies relevant to agriculture and natural resource management within the state.

This area of study involves a collaborative network of approximately 40 researchers across three Arkansas institutions, fostering interdisciplinary connections with materials science, device engineering, quantum physics, and optical device research. The engagement spans fundamental science to applied device development, with active participation from faculty, postdoctoral researchers, and graduate students.