Optics of colloidal quantum-confined CdSe quantum nanoscrolls

被引:22
作者
Vasiliev, R. B. [1 ]
Sokolikova, M. S. [1 ]
Vitukhnovskii, A. G. [2 ,3 ,4 ]
Ambrozevich, S. A. [2 ]
Selyukov, A. S. [2 ]
Lebedev, V. S. [2 ,3 ]
机构
[1] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[2] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
[3] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141707, Moscow Region, Russia
[4] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia
基金
俄罗斯基础研究基金会;
关键词
nanophotonics; colloidal semiconductor nanostructures; nanoscrolls and nanoplatelets; absorption and photoluminescence spectra; luminescence decay kinetics; LIGHT-EMITTING DIODE; CONICAL WAVE-GUIDE; SEMICONDUCTOR NANOPLATELETS; NANOPARTICLES; DOTS; ELECTROLUMINESCENCE; ABSORPTION; EXCITATION; ENERGY; PHOTOVOLTAICS;
D O I
10.1070/QE2015v045n09ABEH015827
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:853 / 857
页数:5
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