Size-Dependent Optical Properties of InP Colloidal Quantum Dots
Lara M. van der Poll (TU Delft - ChemE/Opto-electronic Materials)
WH Evers (TU Delft - BN/Afdelingsbureau)
Sander J.W. Vonk (Universiteit Utrecht)
Freddy T. Rabouw (Universiteit Utrecht)
Arjan J. Houtepen (TU Delft - ChemE/Opto-electronic Materials)
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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.
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