Optoelectronics

• A new Laboratory of Advance Synthesis and Characterisation (LASC) at Gujarat is developing LASC probe stations for universities in India and abroad for investigation of opto-electronic properties in a wide range of materials, including semiconductors, thin films, LEDs, and solar cells.
• The heart of the probe station consists of three elements which mark it differ than the available and imported similar systems. These include-
  • Peltier Elements— a solid-state device capable of transferring heat when subjected to an electrical current;
  • zero welding helping it attain high vacuum level and
  • a system that offers superior control over opto-electronic functions.
• The systems are user-friendly, equipped with tungsten tips, which provide exceptionally low resistance for high-temperature measurements.

ABOUT OPTOELECTRONICS

• Optoelectronics is the study and application of electronic devices and systems that source, detect and control light, usually considered a sub-field of photonics.
• It is largely based on semiconductor materials.
  • These exhibit suitable bandgap energies for absorbing near-infrared and visible light, and their electric conductivity (albeit not perfect) is also essential for such applications.
• Examples- Telecommunication laser, Optical fibre, Blue laser, LED traffic lights, Photodiodes