What are Quantum Dots and How Do They Work in Infrared Photodetectors?
Quantum dots are semiconductor nanoparticles with size-dependent optical and electronic properties. In infrared photodetectors, quantum dots can be engineered to absorb specific wavelengths of IR light. When IR photons are absorbed, they excite electrons within the quantum dots, generating an electrical signal. This ability to tune the absorption wavelength makes quantum dots highly versatile for various IR detection applications.
