Optical properties of organic-inorganic hybrid films prepared by the two-step growth process

被引：13

作者：

Kitazawa, Nobuaki ^{[1
]}

Yaemponga, Dhebbajaji ^{[1
]}

Aono, Masami ^{[1
]}

Watanabe, Yoshihisa ^{[1
]}

机构：

[1] Natl Def Acad, Dept Mat Sci & Engn, Kanagawa 2398686, Japan

来源：

JOURNAL OF LUMINESCENCE | 2009年 / 129卷 / 09期

关键词：

Excitons; Self-assembly; Optical properties; Thin films; QUANTUM-WELL; PEROVSKITE; EXCITONS;

D O I：

10.1016/j.jlumin.2009.04.023

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Thin films of microcrystal line (C8H17NH3)(2)PbBr4 have been prepared by the two-step growth process as follows: (1) precipitation of nanometer-sized PbBr2 particles on substrates by vapor deposition and then (2) growth of (C8H17NH3)(2)PbBr4 films by exposing PbBr2 particles to C8H17NH3Br vapor. Atomic force microscope observations reveal that the substrate is fully covered with nanometer-sized rodlike precipitates. X-ray diffraction studies suggest that (C8H17NH3)(2)PbBr4 films are found to be microcrystalline form, single phase and highly oriented with the c-axis perpendicular to the substrate surface. (C8H17NH3)(2)PbBr4 films show a clear exciton absorption and free-exciton emission even at room temperature. At low temperatures below 40 K, the emission band separates into three bands at 3.07 (A-band), 3.14 (B-band) and 3.20 (C-band) eV, respectively. Both A- and C-bands correspond to the free-exciton emission with large binding energies. On the contrary, time-resolved PL spectra indicate that the B-band is attributed to phosphorescence formed by the intersystem crossing. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1036 / 1041

页数：6

共 18 条

[1] DSC, X-RAY-DIFFRACTION AND RAMAN STUDIES OF HIGH-TEMPERATURE PHASE-TRANSITIONS IN THE PEROVSKITE-TYPE LAYER COMPOUND BUTYLENEDIAMMONIUM LEAD TETRACHLORIDE [J].

ABID, Y ;

KAMOUN, M ;

LAUTIE, A ;

ROMAIN, F .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (33) :6005-6014

[2] Strong exciton-photon coupling in a microcavity containing layered perovskite semiconductors [J].

Brehier, A. ;

Parashkov, R. ;

Lauret, J. S. ;

Deleporte, E. .

APPLIED PHYSICS LETTERS, 2006, 89 (17)

[3] Patterning and photolumine scent properties of perovskite-type organic/inorganic hybrid luminescent films by soft lithography [J].

Cheng, ZY ;

Wang, Z ;

Xing, RB ;

Han, YC ;

Lin, J .

CHEMICAL PHYSICS LETTERS, 2003, 376 (3-4) :481-486

[4] Effect of thermal annealing on the optical and morphological properties of (AETH)PbX4 (X = Br, I) perovskite films prepared using single source thermal ablation [J].

Chondroudis, K ;

Mitzi, DB ;

Brock, P .

CHEMISTRY OF MATERIALS, 2000, 12 (01) :169-175

[5] Huge exchange energy and fine structure of excitons in an organic-inorganic quantum well material [J].

Ema, K. ;

Umeda, K. ;

Toda, M. ;

Yajima, C. ;

Arai, Y. ;

Kunugita, H. ;

Wolverson, D. ;

Davies, J. J. .

PHYSICAL REVIEW B, 2006, 73 (24)

[6] ORGANIC-INORGANIC HETEROSTRUCTURE ELECTROLUMINESCENT DEVICE USING A LAYERED PEROVSKITE SEMICONDUCTOR (C6H5C2H4NH3)2PBL4 [J].

ERA, M ;

MORIMOTO, S ;

TSUTSUI, T ;

SAITO, S .

APPLIED PHYSICS LETTERS, 1994, 65 (06) :676-678

[7] Self-organized growth of PbI-based layered perovskite quantum well by dual-source vapor deposition [J].

Era, M ;

Hattori, T ;

Taira, T ;

Tsutsui, T .

CHEMISTRY OF MATERIALS, 1997, 9 (01) :8-&

[8] QUANTUM WELLS WITH ENHANCED EXCITON EFFECTS AND OPTICAL NON-LINEARITY [J].

HANAMURA, E ;

NAGAOSA, N ;

KUMAGAI, M ;

TAKAGAHARA, T .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1988, 1 (3-4) :255-258

[9] DIELECTRIC CONFINEMENT EFFECT ON EXCITONS IN PBI4-BASED LAYERED SEMICONDUCTORS [J].

HONG, X ;

ISHIHARA, T ;

NURMIKKO, AV .

PHYSICAL REVIEW B, 1992, 45 (12) :6961-6964

[10] Excitons in self-organized layered perovskite films prepared by the two-step growth process [J].

Kitazawa, N ;

Ito, T ;

Sakasegawa, D ;

Watanabe, Y .

THIN SOLID FILMS, 2006, 500 (1-2) :133-137

← 1 2 →