Solar Cell
A solar cell is an electrical device that converts light energy to electrical energy. It is a p-n junction semiconductor that generates electricity only when the energy of incident light is greater than its band gap.
Working of Solar Cell
The working of Solar Cells is explained in the article below.
- When the light (photons) of energy greater than the bandgap of the semiconductor is thrown into the solar cell, the energy of the photons gets transferred to the cell.
- The energy of the photons is transferred to the electrons in the lower, p-type layer.
- Due to this energy, the electrons can jump to the upper layer i.e. n-type layer, and then move into the circuit through the metallic conducting strips.
- Due to the movement of the electrons, the current is produced in the circuit.
Optoelectronic Devices
Optoelectronics is the research, design, and production of a hardware device that transforms electrical energy into light and light into energy using semiconductors. It is the connection between optics and electronics. Optoelectronic devices are special types of semiconductor devices that are able to convert light energy to electrical energy or electrical energy to light energy. Solid crystalline minerals, which are heavier than insulators but lighter than metals, are used to make this device. An optoelectronic device is an electrical gadget that uses light. Numerous optoelectronics applications, including those in the military, telecommunications, automatic access control systems, and medical equipment, use this technology.
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