Abstract
The self-organization of CdSe nanocrystallites into three-dimensional semiconductor quantum dot superlattices (colloidal crystals) is demonstrated. The size and spacing of the dots within the superlattice are controlled with near atomic precision. This control is a result of synthetic advances that provide CdSe nanocrystallites that are monodisperse within the limit of atomic roughness. The methodology is not limited to semiconductor quantum dots but provides general procedures for the preparation and characterization of ordered structures of nanocrystallites from a variety of materials.
Keywords
SuperlatticeQuantum dotNanocrystalSemiconductorMaterials scienceNanotechnologyDispersityCharacterization (materials science)Self-assemblyColloidSemiconductor materialsExcitonCondensed matter physicsOptoelectronicsPhysicsChemistryPhysical chemistry
Affiliated Institutions
Related Publications
Colloidal synthesis of nanocrystals and nanocrystal superlattices
This paper provides an overview of the synthetic techniques used to prepare colloidal nanocrystals (NCs) of controlled composition, size, shape, and internal structure and the m...
Electroluminescence from CdSe quantum-dot/polymer composites
Electroluminescence is obtained from nearly monodisperse CdSe nanocrystallites (quantum dots) incorporated into thin films (1000 Å) of polyvinylcarbazole (PVK) and an oxadiazole...
Synthesis and Characterization of Monodisperse Nanocrystals and Close-Packed Nanocrystal Assemblies
▪ Abstract Solution phase syntheses and size-selective separation methods to prepare semiconductor and metal nanocrystals, tunable in size from ∼1 to 20 nm and monodisperse to ≤...
Synthesis and Characterization of Strongly Luminescing ZnS-Capped CdSe Nanocrystals
We describe the synthesis of ZnS-capped CdSe semiconductor nanocrystals using organometallic reagents by a two-step single-flask method. X-ray photoelectron spectroscopy, transm...
Synthesis of monodisperse cobalt nanocrystals and their assembly into magnetic superlattices (invited)
High temperature, solution phase reduction of cobalt chloride in the presence of stabilizing agents was employed to produce magnetic colloids (ferrofluids) of cobalt nanocrystal...
Publication Info
- Year
- 1995
- Type
- article
- Volume
- 270
- Issue
- 5240
- Pages
- 1335-1338
- Citations
- 2194
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
2194
OpenAlex
Cite This
C. B. Murray,
Cherie R. Kagan,
Moungi G. Bawendi
(1995).
Self-Organization of CdSe Nanocrystallites into Three-Dimensional Quantum Dot Superlattices.
Science
, 270
(5240)
, 1335-1338.
https://doi.org/10.1126/science.270.5240.1335
Identifiers
- DOI
- 10.1126/science.270.5240.1335