Solid State Physics Laboratory (SSPL) is engaged in the research and development of advanced semiconductor materials and devices. Several solid-state devices like Gunn, Schottky Barrier and IMPATT Diodes, monolithic microwave integrated circuits, high-power laser diodes, quadrant detectors, single pole single throw switches, PIN photodiodes, space-quality solar cells, accelerometers, linear infrared Arrays, Thermoelectric coolers, phase shifters, hydrophones, SAW-based e-Nasika have been developed at SSPL. Device quality II-VI/III-V semiconductor crystals and heterostructures have also been developed by the Lab.