Optical absorption and photoluminescence properties of Pb(I,Br)-based two-dimensional layered Perovskite

被引：35
作者：
Kitazawa, N
机构：
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1997年 / 36卷 / 4A期
关键词：
two-dimensional layered perovskite; exciton; optical absorption; photoluminescence; band structure modulation;
D O I：
10.1143/JJAP.36.2272
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of (C6H5C2H4NH3)(2)Pb(BrxI4-x) concentration on the formation of mixed crystals and optical properties of these materials was investigated. Thin films of microcrystalline (C6H5C2H4NH3)(2)Pb(BrxI4-x) were prepared by the spin-coating method using different concentrations of DMF solutions. Macroscopic inhomogeneity of the composition due to the precipitation of undesired phases could be suppressed by controlling the (C6H5C2H4NH3)(2)Pb(BrxI4-x) concentration. These films showed strong exciton absorption with large (250-430 meV) binding energy due to both the quantum and dielectric confinement effect. Replacing I with Br made it possible to shift the exciton band to the blue region, however, photoluminescence from the mixed crystals gradually broadened with increasing the Br content.
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收藏
页码：2272 / 2276
页数：5
相关论文
共 17 条
  • [1] PREPARATION AND CHARACTERIZATION OF LAYERED LEAD HALIDE COMPOUNDS
    CALABRESE, J
    JONES, NL
    HARLOW, RL
    HERRON, N
    THORN, DL
    WANG, Y
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (06) : 2328 - 2330
  • [2] FLUORESCENCE LINE NARROWING, LOCALIZED EXCITON-STATES, AND SPECTRAL DIFFUSION IN THE MIXED SEMICONDUCTOR CDSXSE1-X
    COHEN, E
    STURGE, MD
    [J]. PHYSICAL REVIEW B, 1982, 25 (06) : 3828 - 3840
  • [3] INTERLAYER INTERACTION AND OPTICAL-PROPERTIES OF LAYER SEMICONDUCTORS - 2H AND 4H POLYTYPES OF PBI2
    DONI, E
    GROSSO, G
    HARBEKE, G
    MEIER, E
    TOSATTI, E
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1975, 68 (02): : 569 - 574
  • [4] POLARIZED REFLECTION SPECTRA OF ORTHORHOMBIC PBCL2 AND PBBR2
    FUJITA, M
    NAKAGAWA, H
    FUKUI, K
    MATSUMOTO, H
    MIYANAGA, T
    WATANABE, M
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (12) : 4393 - 4394
  • [5] HANAMURA E, 1988, J MAT SCI ENG, V1, P25
  • [6] DIELECTRIC CONFINEMENT EFFECT FOR EXCITON AND BIEXCITON STATES IN PBI4-BASED 2-DIMENSIONAL SEMICONDUCTOR STRUCTURES
    ISHIHARA, T
    HONG, X
    DING, J
    NURMIKKO, AV
    [J]. SURFACE SCIENCE, 1992, 267 (1-3) : 323 - 326
  • [7] OPTICAL-PROPERTIES DUE TO ELECTRONIC-TRANSITIONS IN 2-DIMENSIONAL SEMICONDUCTORS (CNH2N + 1NH3)2PBI4
    ISHIHARA, T
    TAKAHASHI, J
    GOTO, T
    [J]. PHYSICAL REVIEW B, 1990, 42 (17): : 11099 - 11107
  • [8] EXCITON-STATE IN TWO-DIMENSIONAL PEROVSKITE SEMICONDUCTOR (C10H21NH3)2PBI4
    ISHIHARA, T
    TAKAHASHI, J
    GOTO, T
    [J]. SOLID STATE COMMUNICATIONS, 1989, 69 (09) : 933 - 936
  • [9] Compositional modulation of two-dimensional layered perovskite (RNH(3))(2)Pb(Cl,Br,I)(4) and its optical properties
    Kitazawa, N
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1996, 35 (12A): : 6202 - 6207
  • [10] KONDO S, 1996, KOTAI BUTURI, V31, P167
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