Optoelectronic devices

In this context, light often includes invisible forms of radiation such as gamma rays, X-rays, ultraviolet and infrare in addition to visible light. P-n junctions are an integral part of several optoelectronic devices. These include photodiodes, solar cells light emitting diodes (LEDs) and semiconductor lasers.

In this section, we discuss the principle of operation of these devices and derive equations for key parameters. This can include electrically driven light sources such as laser diodes and light-emitting diodes, components for converting light to an electrical current such as solar and photovoltaic cells and devices that .

The p–n junction is the functional element of many electronic and optoelectronic devices , including diodes, bipolar transistors, photodetectors, light-emitting diodes and solar cells.

Light-emitting devices use voltage and current to produce electromagnetic radiation (i.e., light).

Such light-emitting devices are commonly used for purposes of . Design, modelling, fabrication and processing of new or improved active semiconductor-based devices and systems that use electrons and photons. If the energy is in the form of photons, photoluminescence is produced. They utilise energy in the visible and infrared regions of the electromag- . Electronic materials, devices , and fabrication by Prof S. Parasuraman, Department of Metallurgy and Material Science,IIT Madras. For more details on NPTEL visi. All the optoelectronic devices are explained in detail.

The concept of threshold frequency is also explained. This MSc provides postgraduate vocational training in lasers, optics, and semiconductors tailored to the needs of those seeking to enter photonics-based industry and university research. Students benefit from classes using the expertise at St Andrews and Heriot-Watt . The photonics research groups in the physics departments of Heriot- Watt and St. Andrews Universities are internationally renowne and have many links with industrial and university groups around the world. Major activities are based around optoelectronics , laser development, semiconductor physics, materials . The course is run jointly by the School of Physics and Astronomy at the University of St.

Andrews and the School of Engineering and Physical Sciences here at Heriot Watt University. Related technologies: Photonics - science and technology concerned with the behavior of photons. Optoelectronics is the study and application of optoelectronic devices. Given the demand for ever more compact and powerful systems, there is growing interest in the development of nanoscale devices that .