An emerging field of nanocrystal optoelectronics: All-colloidal nanocrystal lasers of quantum dots to wells
Demir, Hilmi Volkan
Light, Energy and the Environment 2018 (E2, FTS, HISE, SOLAR, SSL)
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Here we will present all-colloidal lasers constructed by incorporating nanocrystal emitters as the optical gain media in fully colloidal cavities. As an extreme case of solution-processed tightly-confined quasi-2D colloids, we will also show that the atomically flat nanocrystals, alternatively known as colloidal quantum wells, uniquely offer record high optical gain coefficients and ultra-low amplified spontaneous emission thresholds.