Excitons in two-dimensional layered perovskite compounds:: (C6H5C2H4NH3)2Pb(Br,I)4 and (C6H5C2H4NH3)2Pb(Cl,Br)4

被引：92

作者：

Kitazawa, N ^{[1
]}

机构：

[1] Natl Def Acad, Dept Mat Sci & Engn, Kanagawa 239, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1997年 / 49卷 / 03期

关键词：

excitons; two-dimensional compounds; optical properties; thin film; photoluminescence;

D O I：

10.1016/S0921-5107(97)00132-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Exciton properties of microcrystalline (C6H5C2H4NH3)(2)Pb(BrxI4-x) and (C6H5C2H4NH3)(2)Pb(ClxBr4-x) films were investigated. The halogen ion replacement made it possible to shift the exciton absorption and photoluminescence bands continuously towards green-blue-violet regions. Blue shift in these bands could be explained by the valence band structure composed with the np orbital of halogens and 6s orbital of lead. The degree of hybridization of halogen (np) orbital into Pb (6s) orbital could be determined the band gap of mixed crystals. In the mixed crystals, the types of photoluminescence turned to self-trapped exciton process from free exciton emission due to the lattice distortion. (C) 1997 Elsevier Science S.A.

引用

页码：233 / 238

页数：6

共 21 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] 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
[3] 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
[4] QUANTUM WELLS WITH ENHANCED EXCITON EFFECTS AND OPTICAL NON-LINEARITY
HANAMURA, E
NAGAOSA, N
KUMAGAI, M
TAKAGAHARA, T
[J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1988, 1 (3-4): : 255 - 258
[5] EXCITON FEATURES IN 0-DIMENSIONAL, 2-DIMENSIONAL, AND 3-DIMENSIONAL NETWORKS OF [PBI6]4- OCTAHEDRA
HIRASAWA, M
ISHIHARA, T
GOTO, T
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (10) : 3870 - 3879
[6] DIELECTRIC CONFINEMENT EFFECT ON EXCITONS IN PBI4-BASED LAYERED SEMICONDUCTORS
HONG, X
ISHIHARA, T
NURMIKKO, AV
[J]. PHYSICAL REVIEW B, 1992, 45 (12): : 6961 - 6964
[7] 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
[8] 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
[9] EXCITON-STATE IN TWO-DIMENSIONAL PEROVSKITE SEMICONDUCTOR (C10H21NH3)2PBI4
ISHIHARA, T
TAKAHASHI, J
GOTO, T
[J]. SOLID STATE COMMUNICATIONS, 1989, 69 (09) : 933 - 936
[10] EXCITONS IN AGBR1-XCLX - TRANSITION OF RELAXED STATE BETWEEN FREE AND SELF-TRAPPED EXCITON
KANZAKI, H
SAKURAGI, S
SAKAMOTO, K
[J]. SOLID STATE COMMUNICATIONS, 1971, 9 (13) : 999 - &

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