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ZnSe Quantum Dots Within CdS Nanorods: A Seeded‐Growth Type‐II System
Author(s) -
Dorfs Dirk,
Salant Asaf,
Popov Inna,
Banin Uri
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200800084
Subject(s) - nanorod , quantum dot , materials science , quantum yield , excited state , spectroscopy , optoelectronics , seeding , characterization (materials science) , anisotropy , nanotechnology , photoluminescence , zinc , fluorescence , optics , atomic physics , physics , thermodynamics , quantum mechanics , metallurgy
CdS nanorods with ZnSe seeds are developed. Rod growth is achieved for a seed with a zinc blende structure. Due to the type‐I potential profile in this anisotropic nanoheterostructure, charge‐carrier separation occurs in the excited state of the nanorod. Structural characterization is shown as well as static and time‐resolved optical spectroscopy. A fluorescence quantum yield of 45% is achieved, demonstrating the exceptional optical properties of these structures.