Size-Dependent Optical Properties of InP Colloidal Quantum Dots
Guilherme Almeida, Lara van der Poll, Wiel H. Evers, Emma Szoboszlai, Sander J. W. Vonk, Freddy T. Rabouw, Arjan J. Houtepen
Abstract
Indium phosphide colloidal quantum dots (CQDs) are the main alternative for toxic and restricted Cd based CQDs for lighting and display applications. Here we systematically report on the size-dependent optical absorption, ensemble, and single particle photoluminescence (PL) and biexciton lifetimes of core-only InP CQDs. This systematic study is enabled by improvements in the synthesis of InP CQDs to yield a broad size series of monodisperse core-only InP CQDs with narrow absorption and PL line width and significant PL quantum yield.
Topics & Concepts
PhotoluminescenceIndium phosphideQuantum dotMaterials scienceAbsorption (acoustics)Quantum yieldYield (engineering)Core (optical fiber)OptoelectronicsBiexcitonParticle sizeIndiumColloidNanotechnologyOpticsChemistryGallium arsenidePhysicsPhysical chemistryFluorescenceMetallurgyComposite materialQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsNanowire Synthesis and Applications