Observation of efficient transfer from Mott-Wannier to Frenkel excitons in a hybrid semiconductor quantum dot/polymer composite at room temperature

被引：9
|
作者：
Nizamoglu, Sedat [1 ]
Sun, Xiao Wei
Demir, Hilmi Volkan
机构：
[1] Bilkent Univ, Dept Elect & Elect Engn, Dept Phys, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey
来源：
APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 26期
关键词：
LIGHT-EMITTING-DIODES; ENERGY-TRANSFER; DOT; EMISSION; NANOCRYSTALS; POLYMERS; WELL;
D O I：
10.1063/1.3529450
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Efficient conversion from Mott-Wannier to Frenkel excitons is observed at room temperature. The time-resolved photoluminescence shows that the energy transfer rate and efficiency reach 0.262 ns(-1) and 80.9%, respectively. The energy transfer is enabled by strong dipole-dipole coupling in a hybrid inorganic/organic system of CdSe/ZnS core/shell heteronanocrystal and poly[2-methoxy-5-(3,7-dimethyl-octyloxy)-1,4-phenylenevinylene] homopolymer composite, and the measured energy transfer efficiencies are consistent with the analytical model. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3529450]
引用
收藏
页数：3
相关论文
共 28 条
  • [1] Room-temperature, high-efficiency conversion of Mott-Wannier excitons to Frenkel excitons in hybrid semiconductor quantum dot/polymer composites
    Nizamoglu, Sedat
    Sun, Xiao Wei
    Demir, Hilmi Volkan
    2011 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2011,
  • [2] Efficient dipole-dipole coupling of Mott-Wannier and Frenkel excitons in (Ga,In)N quantum well/polyfluorene semiconductor heterostructures
    Itskos, G.
    Heliotis, G.
    Lagoudakis, P. G.
    Lupton, J. M.
    Barradas, N. P.
    Alves, E.
    Pereira, S.
    Watson, I. M.
    Dawson, M. D.
    Feldmann, J.
    Murray, R.
    Bradley, D. D. C.
    PHYSICAL REVIEW B, 2007, 76 (03)
  • [3] Efficient migration of Mott-Wannier excitons to Frenkel excitons in hybrid organic/inorganic assembly of CdSe/ZnS nanocrystals in MDMO-PPV homopolymers
    Nizamoglu, Sedat
    Sun, Xiaowei
    Demir, Hilmi Volkan
    2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2, 2009, : 632 - +
  • [4] Efficient dipole-dipole coupling of Mott-Wannier and Frenkel excitons in (Ga,In)N quantum well/polyfluorene semiconductor heterostructures (vol 76, art no 035344, 2007)
    Itskos, G.
    Heliotis, G.
    Lagoudakis, P. G.
    Lupton, J.
    Barradas, N. P.
    Alves, E.
    Pereira, S.
    Watson, I. M.
    Dawson, M. D.
    Feldmann, J.
    Murray, R.
    Bradley, D. D. C.
    PHYSICAL REVIEW B, 2008, 77 (07):
  • [5] Room Temperature Frenkel-Wannier-Mott Hybridization of Degenerate Excitons in a Strongly Coupled Microcavity
    Slootsky, Michael
    Liu, Xiaoze
    Menon, Vinod M.
    Forrest, Stephen R.
    PHYSICAL REVIEW LETTERS, 2014, 112 (07)
  • [6] Excitonic switching across a Z2 topological phase transition: From Mott-Wannier to Frenkel excitons in organic materials
    Romanin, D.
    Calandra, M.
    Chin, A. W.
    PHYSICAL REVIEW B, 2022, 106 (15)
  • [7] Geometry-modulated dipole polarizability of the two-dimensional Mott-Wannier excitons in gate-defined anisotropic quantum dot
    A. Poszwa
    Scientific Reports, 12
  • [8] Wannier-Frenkel hybrid exciton in organic-semiconductor quantum dot hetero structures
    Birman, Joseph L.
    Huong, Nguyen Que
    JOURNAL OF LUMINESCENCE, 2007, 125 (1-2) : 196 - 200
  • [9] Geometry-modulated dipole polarizability of the two-dimensional Mott-Wannier excitons in gate-defined anisotropic quantum dot
    Poszwa, A.
    SCIENTIFIC REPORTS, 2022, 12 (01) : 14774
  • [10] Photon antibunching from a single semiconductor quantum dot at room temperature
    Michler, P
    Imamolgu, A
    Mason, MD
    Carson, PJ
    Strouse, GF
    Buratto, SK
    PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 2001, 87 : 1173 - 1174
123