Vertically oriented self-assembly of colloidal CdSe/CdZnS quantum wells controlled <i>via</i> hydrophilicity/lipophilicity balance: optical gain of quantum well stacks for amplified spontaneous emission and random lasing
Zeynep Dikmen, Ahmet Tarık Işık, İklim Bozkaya, Hamed Dehghanpour Baruj, Betül Canımkurbey, Farzan Shabani, Muhammad Ahmad, Hilmi Volkan Demir
Abstract
, thinner films that are intrinsically rough enough) leads to random lasing, while it is possible to observe ASE only in thick enough films even if their roughness is relatively higher. These findings indicate that the proposed bottom-up technique can be used to construct thickness-tunable, three-dimensional CQW superstructures for fast, low-cost, and large-area fabrication.
Topics & Concepts
Lasing thresholdLipophilicityOptoelectronicsMaterials scienceAmplified spontaneous emissionPhosphorescenceColloidLaserChemistryPhysicsOpticsPhysical chemistryFluorescenceStereochemistryWavelengthQuantum Dots Synthesis And PropertiesGold and Silver Nanoparticles Synthesis and ApplicationsChalcogenide Semiconductor Thin Films