Department of nano-micro-antennas and nano-electromagnetic waves (Nano-Micro-Antena)
Optical nano antennas ( a practical solution with high efficiency compared to other technologies)
Researcher and author: Dr. ( Afshin Rashid)
Note: Since the use of optical nano antennas to collect solar energy provides a practical solution with high efficiency compared to other common photovoltaic technologies such as solar panels, it has led to rapid development in the nano and optical materials industry.
When the solar electromagnetic wave hits the surface of the nano-antenna, a time-varying current is created on the surface of the nano-antenna, and as a result, a voltage is produced at the place of its feeding gap. An antenna is a device that can receive the electromagnetic waves in the space. In order to receive the solar electromagnetic waves by the antenna, the dimensions of the antenna must be in the order of the wavelength of the input to its surface, so in order to receive the solar radiations that have wavelengths in the infrared region, They include visible and ultraviolet, an antenna with dimensions of nanometers is needed. Since the use of optical nanoantennas for solar energy harvesting provides a practical solution with high efficiency compared to other common photovoltaic technologies such as solar panels, it has led to rapid development in the nano and optical materials industry.
An optical nano-antenna with linear polarization and 2/λ length, which has a relative bandwidth of 11%, will be able to collect about 75.2 pW. Therefore, if using an antenna with double polarization, a power of 5.5 pW will be obtained. Due to the low receiving power of each independent nano antenna, it is customary to use anti-arrays in this cell, which has its own rules and methods. An antenna is a device that can receive electromagnetic waves in space. To receive waves Solar electromagnetic by the antenna should be in the order of the size of the incoming wavelength to its surface, so in order to receive solar radiation that includes the wavelengths of the infrared, visible and ultraviolet region, an antenna with nanometer dimensions is needed. Nano industry and optical materials.
Conclusion :
Since the use of optical nanoantennas for solar energy harvesting provides a practical solution with high efficiency compared to other common photovoltaic technologies such as solar panels, it has led to rapid development in the nano and optical materials industry.
Researcher and author: Dr. ( Afshin Rashid)
Specialized doctorate in nano-microelectronics