Optics of colloidal quantum-confined CdSe nanoscrolls

Journal Article · Wed Sep 30 04:00:00 EDT 2015 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2015V045N09ABEH015827· OSTI ID:22551191

Vasiliev, R B; Sokolikova, M S ^[1]; Vitukhnovskii, A G; Ambrozevich, S A; Selyukov, A S; Lebedev, V S ^[2]

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1. M. V. Lomonosov Moscow State University, Moscow (Russian Federation)
2. P N Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

Nanostructures in the form of 1.2-nm-thick colloidal CdSe nanoplatelets rolled into scrolls are investigated. The morphology of these scrolls is analysed and their basic geometric parameters are determined (diameter 29 nm, longitudinal size 100 – 150 nm) by TEM microscopy. Absorption and photoluminescence spectra of these objects are recorded, and the luminescence decay kinetics is studied. It is shown that the optical properties of CdSe nanoscrolls differ significantly from the properties of CdSe quantum dots and that these nanoscrolls are attractive for nanophotonic devices due to large oscillator strengths of the transition, small widths of excitonic peaks and short luminescence decay times. Nanoscrolls can be used to design hybrid organic–inorganic pure-color LEDs with a high luminescence quantum yield and low operating voltages. (optics and technology of nanostructures)

• OSTI ID: 22551191
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 9 Vol. 45; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CADMIUM SELENIDES
COLLOIDS
COLOR MODEL
ELECTRIC POTENTIAL
KINETICS
MORPHOLOGY
OPTICS
OSCILLATOR STRENGTHS
PHOTOLUMINESCENCE
QUANTUM DOTS
SPECTRA
TRANSMISSION ELECTRON MICROSCOPY