- #1
omri3012
- 62
- 0
A piece of Semiconductor is irradiated by light, will the light effects on resistivity be
intensified or reduced if the temprature is increased? why?
intensified or reduced if the temprature is increased? why?
omri3012 said:A piece of Semiconductor is irradiated by light, will the light effects on resistivity be
intensified or reduced if the temprature is increased? why?
Semiconductors are materials that have properties between those of conductors and insulators. They have the ability to conduct electricity, but not as well as conductors, and can also act as insulators under certain conditions. Commonly used semiconductors include silicon, germanium, and gallium arsenide.
At the atomic level, semiconductors have a unique band structure that allows for the movement of electrons. When an external electric field is applied, electrons can be excited from the valence band to the conduction band, creating a flow of current. This process can be controlled and manipulated to create different electronic devices.
Light has a significant impact on the behavior of semiconductors. When light is shone onto a semiconductor, it can excite electrons and create electron-hole pairs, which can contribute to the flow of current. This phenomenon is known as the photoelectric effect and is the basis for many optoelectronic devices such as solar cells and LEDs.
Semiconductors have a wide range of applications in various industries, including electronics, telecommunications, energy, and healthcare. They are used in devices such as transistors, diodes, sensors, and solar cells. They are also essential in the development of advanced technologies like nanotechnology and quantum computing.
One of the most significant advancements in this field is the development of new materials, such as perovskite, which has shown promise for more efficient and cost-effective solar cells. Researchers are also exploring ways to combine semiconductors with other materials, such as graphene, to create new electronic devices with improved performance. Additionally, advancements in nanotechnology have allowed for the creation of smaller and more powerful semiconductor components.