RUS  ENG
Full version
JOURNALS // Kvantovaya Elektronika // Archive

Kvantovaya Elektronika, 2015 Volume 45, Number 9, Pages 853–857 (Mi qe16242)

This article is cited in 23 papers

Optics and technology of nanostructures

Optics of colloidal quantum-confined CdSe nanoscrolls

R. B. Vasilieva, M. S. Sokolikovaa, A. G. Vitukhnovskiibcd, S. A. Ambrozevichb, A. S. Selyukovb, V. S. Lebedevbc

a Lomonosov Moscow State University
b P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
c Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
d Moscow Engineering Physics Institute (National Nuclear Research University)

Abstract: 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.

Keywords: nanophotonics, colloidal semiconductor nanostructures, nanoscrolls and nanoplatelets, absorption and photoluminescence spectra, luminescence decay kinetics.

PACS: 81.07.Pr, 85.35.Be, 73.63.Kv, 72.80.Le

Received: 06.04.2015


 English version:
Quantum Electronics, 2015, 45:9, 853–857

Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024