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Colloidal Multi-Dot Nanorods
DOI:10.1021/jacs.3c14115.png)
Abstract
En 中文
Colloidal nanorod heterostructures consisting of multiple quantum dots within a nanorod (n-DNRs, where n is the number of quantum dots within a nanorod) are synthesized with alternating segments of CdSe dot and CdS rod via solution heteroepitaxy. The reaction temperature, time dependent ripening, and asymmetry of the wurtzite lattice and the resulting anisotropy of surface ligand steric hindrance are exploited to vary the morphology of the growing quantum dot segments. The alternating CdSe and CdS growth steps can be easily repeated to increment the dot number in unidirectional or bidirectional growth regimes. As an initial exploration of electron occupation effects on their optical properties, asymmetric 2-DNRs consisting of two dots of different lengths and diameters are synthesized and are shown to exhibit a change in color and an unusual photoluminescence quantum yield increase upon photochemical doping.
Keywords:
LIGHT-EMITTING-DIODES
AUGER RECOMBINATION
CDSE/CDS NANORODS
WURTZITE CDSE
SEEDED GROWTH
QUANTUM DOTS
NANOCRYSTALS
ROD
SHELL
HETEROSTRUCTURES
Journal
IF:
15.6
Papers:
20.0W
Citations:
60.2W
Organization
Cited Papers
Colloidal Dual-Diameter and Core-Position Controlled Core/Shell Cadmium Chalcogenide Nanorods
ACS NANO
IF16
Tuning the optical and electronic properties of colloidal nanocrystals by lattice strain
NATURE NANOTECHNOLOGY
IF34.9
Compact high-quality CdSe-CdS core-shell nanocrystals with narrow emission linewidths and suppressed blinking
NATURE MATERIALS
IF38.5
Electric-field-induced colour switching in colloidal quantum dot molecules at room temperature
NATURE MATERIALS
IF38.5
Flexible quantum dot light-emitting diodes for next-generation displays
NPJ FLEXIBLE ELECTRONICS
IF15.5
Electrically-driven single-photon sources based on colloidal quantum dots with near-optimal antibunching at room temperature
NATURE COMMUNICATIONS
IF15.7

