Physics and Photophysics of Quantum Dots for Display Applications

Quantum dots (QDs) are prominent nanometric light emitters, featuring quantum behavior due to the quantum confinement effect. This effect is responsible for the size-dependent optoelectronic properties of QDs, which makes them a versatile building block for various applications. Moreover, the bright emission of QDs and narrow spectral lines make them ideal for display applications. However, QDs also undergo nonradiative processes that can impair their functionality in display devices. This chapter delves into the physics and photophysics of QDs. It discusses quantum confinement and size and shape effects, heterostructures and surface effects, the absorption and emission spectra, charge dynamics, stability, and collective effects, aiming to shed light on the intricate nature of the QDs' photophysics.