Aqueous based semiconductor nanocrystals

L **g, SV Kershaw, Y Li, X Huang, Y Li… - Chemical …, 2016 - ACS Publications
This review summarizes traditional and recent nonconventional, bioinspired, methods for the
aqueous synthesis of colloidal semiconductor quantum dots (QDs). The basic chemistry …

Core/shell nanoparticles: classes, properties, synthesis mechanisms, characterization, and applications

R Ghosh Chaudhuri, S Paria - Chemical reviews, 2012 - ACS Publications
Nanomaterials have, by definition, one or more dimension in the nanometer scale (≤ 100
nm) range and subsequently show novel properties from their bulk materials. The synthesis …

Narrow bandgap colloidal metal chalcogenide quantum dots: synthetic methods, heterostructures, assemblies, electronic and infrared optical properties

SV Kershaw, AS Susha, AL Rogach - Chemical Society Reviews, 2013 - pubs.rsc.org
The chemistry, material processing and fundamental understanding of colloidal
semiconductor nanocrystals (quantum dots) are advancing at an astounding rate, bringing …

Aqueous synthesis of thiol-capped CdTe nanocrystals: state-of-the-art

AL Rogach, T Franzl, TA Klar, J Feldmann… - The Journal of …, 2007 - ACS Publications
We report on the state-of-the art synthesis and improved luminescence properties of thiol-
capped CdTe nanocrystals (NCs) synthesized in water. The optimized pH (12) and molar …

Type-II core/shell CdS/ZnSe nanocrystals: synthesis, electronic structures, and spectroscopic properties

SA Ivanov, A Piryatinski, J Nanda… - Journal of the …, 2007 - ACS Publications
We report a two-step synthesis of highly luminescent CdS/ZnSe core/shell nanocrystals
(emission quantum yields up to 50%) that can produce efficient spatial separation of …

Nano-engineered electron–hole exchange interaction controls exciton dynamics in core–shell semiconductor nanocrystals

S Brovelli, RD Schaller, SA Crooker… - Nature …, 2011 - nature.com
A strong electron–hole exchange interaction (EI) in semiconductor nanocrystals (NCs) gives
rise to a large (up to tens of meV) splitting between optically active ('bright') and optically …

Design and synthesis of highly luminescent near-infrared-emitting water-soluble CdTe/CdSe/ZnS core/shell/shell quantum dots

W Zhang, G Chen, J Wang, BC Ye, X Zhong - Inorganic chemistry, 2009 - ACS Publications
Applications of water-dispersible near-infrared (NIR)-emitting quantum dots (QDs) have
been hampered by their instability and low photoluminescence (PL) efficiencies. In this …

Tuning the luminescence of phosphors: beyond conventional chemical method

G Bai, MK Tsang, J Hao - Advanced Optical Materials, 2015 - Wiley Online Library
Tuning the luminescence of phosphors is extremely important in controlling and processing
light for active components of light sources, optical sensing, display devices, and …

Highly luminescent CdTe/CdSe colloidal heteronanocrystals with temperature-dependent emission color

PTK Chin, C de Mello Donegá… - Journal of the …, 2007 - ACS Publications
In this work we present the preparation of highly luminescent anisotropic CdTe/CdSe
colloidal heteronanocrystals. The reaction conditions used (low temperature, slow precursor …

Synthesis and optical properties of type II CdTe/CdS core/shell quantum dots in aqueous solution via successive ion layer adsorption and reaction

Q Zeng, X Kong, Y Sun, Y Zhang, L Tu… - The Journal of …, 2008 - ACS Publications
3-Mercaptopropionic acid stabilized CdTe/CdS core/shell quantum dots (QDs) were
prepared in an aqueous solution following the synthetic route of successive ion layer …