Optical properties and aging of PbS quantum dots embedded in a porous matrix.

被引：3
作者：
Litvin, Aleksandr P. [1 ]
Parfenov, Peter S. [1 ]
Ushakova, Elena V. [1 ]
Fedorov, Anatoly V. [1 ]
Artemyev, Mikhail V. [2 ]
Prudnikau, Anatoly V. [2 ]
Rukhlenko, Ivan D. [3 ]
Baranov, Alexander V. [1 ]
机构：
[1] Natl Res Univ Informat Technol Mech & Opt, 49 Kronverkskiy Pr, St Petersburg 197101, Russia
[2] Belarusian State Univ, Minsk, BELARUS
[3] Monash Univ, Clayton, Vic 3800, Australia
来源：
NANOPHOTONIC MATERIALS X | 2013年 / 8807卷
关键词：
Quantum dots; luminescence; near-infrared region; PbS; luminescence lifetimes; porous matrix; ENERGY-TRANSFER; LUMINESCENCE; DECAY;
D O I：
10.1117/12.2023025
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
PbS quantum dots (QDs) with diameter of 2.9-7.4 nm were embedded into a porous matrix. The samples prepared by developed low-cost effortless method demonstrate linear dependencies of optical density and luminescence intensity on the QDs concentration and perfect homogeneity. Optical properties of quantum dots in the matrix were studied using absorption and steady-state and time-resolved photoluminescence spectroscopy. Luminescence lifetimes were found to be size-dependent and increase with decreasing of QDs size. The aging behavior of PbS QDs in a porous matrix was explored for a variety of QDs sizes. The energy transfer process in quasi-monodispersed PbS QDs ensemble was discovered.
引用
收藏
页数：7
相关论文
共 50 条
  • [41] Morphology, optical, and electric properties of polymer-quantum dots nanocomposites: effect of polymeric matrix
    Moura, I.
    de Sa, A.
    Abreu, Ana S.
    Oliveira, M.
    Machado, A. V.
    JOURNAL OF MATERIALS SCIENCE, 2016, 51 (18) : 8699 - 8710
  • [42] Size-Dependent Optical Properties of InP Colloidal Quantum Dots
    Almeida, Guilherme
    van der Poll, Lara
    Evers, Wiel H.
    Szoboszlai, Emma
    Vonk, Sander J. W.
    Rabouw, Freddy T.
    Houtepen, Arjan J.
    NANO LETTERS, 2023, 23 (18) : 8697 - 8703
  • [43] Optical characterization of core-shell quantum dots embedded in synthetic saliva: Temporal dynamics
    de Santana, Juliana F.
    Pilla, Viviane
    Silva, Anielle C. A.
    Dantas, Noelio O.
    Messias, Djalmir N.
    Andrade, Acacio A.
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 2015, 151 : 208 - 212
  • [44] Effects of Cu Dopant on Lattice and Optical Properties of ZnS Quantum Dots
    Lu Shuhua
    Wang Aiji
    Chen Tingfang
    Wang Yinshu
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2016, 16 (04) : 3816 - 3820
  • [45] Influence of the Shell Thickness and Ratio Between Core Elements on Photostability of the CdTe/CdS Core/Shell Quantum Dots Embedded in a Polymer Matrix
    Doskaliuk, Nataliia
    Khalavka, Yuriy
    Fochuk, Petro
    NANOSCALE RESEARCH LETTERS, 2016, 11
  • [46] Tuning Optical Properties of Si Quantum Dots by π-Conjugated Capping Molecules
    Dung, Mai Xuan
    Dao Duy Tung
    Jeong, Sohee
    Jeong, Hyun-Dam
    CHEMISTRY-AN ASIAN JOURNAL, 2013, 8 (03) : 653 - 664
  • [47] OPTICAL PROPERTIES OF NEMATIC LIQUID CRYSTAL COMPOSITES WITH SEMICONDUCTING QUANTUM DOTS
    Osipova, V. V.
    Kurilov, A. D.
    Galyametdinov, Y. G.
    Muravsky, A. A.
    Kumar, S.
    Chausov, D. N.
    LIQUID CRYSTALS AND THEIR APPLICATION, 2020, 20 (04): : 84 - 92
  • [48] Synthesis and optical properties of copper-doped ZnSe quantum dots
    Rajesh, Ch
    Phadnis, Chinmay V.
    Sonawane, Kiran G.
    Mahamuni, Shailaja
    PHYSICA SCRIPTA, 2015, 90 (01)
  • [49] Fabrication and study of structural and optical properties of Cadmium Telluride quantum dots
    Alqahtani, S. F.
    Farooq, W. A.
    Ali, Syed M.
    Tawfik, Walid
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2019, 21 (5-6): : 385 - 394
  • [50] Time-evolving photo-induced changes of luminescent and spectral properties of PbS quantum dots sols
    Evstropiev, S. K.
    Kislyakov, I. M.
    Bagrov, I. V.
    Belousova, I. M.
    Kiselev, V. M.
    OPTICS COMMUNICATIONS, 2016, 366 : 282 - 284
12345