Size-Dependent Optical Properties of InP Colloidal Quantum Dots

13 July 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

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 linewidth and significant PL quantum yield

Keywords

InP
quantum dots
phosphors
absorption
luminescence

Supplementary materials

Title
Description
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Title
SI - Size-Dependent Optical Properties of InP Colloidal Quantum Dots
Description
0. InP vs. CdSe: sizing curves and absorption coefficients 1. Determination of the intrinsic absorption coefficient of CQDs 2. Morphology and Composition of InP CQDs 3. Determination of the second absorptive transition 4. Fitting of the cross section spectra 5. Surface treatment of InP QDs with In-based Z-type ligands 6. Time-Correlated Single Photon Counting 7. PL Microscopy 8 8. Transient Absorption spectroscopy
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