Optical Activity and Chiral Memory of Thiol-Capped CdTe Nanocrystals
- 9 July 2009
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 131 (30), 10342-10343
- https://doi.org/10.1021/ja902800f
Abstract
CdTe nanocrystals (NCs) passivated with chiral ligands d- and l-cysteinemethylester hydrochloride were prepared and observed to exhibit characteristic CD profiles with symmetrical mirror images depending on the chirality of the capping ligand. The optical activity of CdTe NCs is shown to originate from the distorted CdS shell including chiral capping molecules. The chirality of the NC surface is maintained even after ligand exchange with an achiral thiol, providing an unprecedented chiral memory effect.Keywords
This publication has 29 references indexed in Scilit:
- New Aspects of Carrier Multiplication in Semiconductor NanocrystalsAccounts of Chemical Research, 2008
- Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light HarvestersThe Journal of Physical Chemistry C, 2008
- Semiconductor Quantum Dots for BioanalysisAngewandte Chemie-International Edition, 2008
- Chiral nanoscale building blocks—from understanding to applicationsJournal of Materials Chemistry, 2008
- Light‐Emitting Diodes with Semiconductor NanocrystalsAngewandte Chemie-International Edition, 2008
- Chiral Shells and Achiral Cores in CdS Quantum DotsNano Letters, 2008
- Semiconductor Nanocrystal Quantum DotsPublished by Springer Science and Business Media LLC ,2008
- Exciton–plasmon interactions in molecular spring assemblies of nanowires and wavelength-based protein detectionNature Materials, 2007
- Quantum Dots in Biological and Biomedical Research: Recent Progress and Present ChallengesAdvanced Materials, 2006
- Perspectives on the Physical Chemistry of Semiconductor NanocrystalsThe Journal of Physical Chemistry, 1996