Abstract
Quantum dot laser, which is well known as the 3rd generation of semiconductor laser, has attracted extensive attention of researchers in recent years. Compared with typical semiconductor laser, quantum dot exhibits the characteristics of low threshold, large laser gain, tunable bandgap, which make it promising for laser applications. Among the various quantum dot lasers, perovskite quantum dot laser is one superior type. Perovskite is a group of material with the structure of ABX3. This group of material is commonly used in solar cell and light emitting device such as perovskite quantum dot blue emitting diode, due to its excellent optical properties of narrow linewidth and high luminance. The perovskite quantum is also found to be a good material of laser gain material. Among all classes of perovskite, CsPbX3 has become an expected material for perovskite quantum dot laser. This work will conclude the theory of quantum dot laser and properties of CsPbX3 quantum dot laser based on current papers and reports.
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