Strongly enhanced free-exciton luminescence in microcrystalline CsPbCl3 films produced via the amorphous phase

被引：6

作者：

Kondo, S ^{[1
]}

Saito, T ^{[1
]}

机构：

[1] Univ Fukui, Res Ctr Dev Far Infrared Region, Fukui 9108507, Japan

来源：

SOLID STATE COMMUNICATIONS | 2003年 / 127卷 / 11期

关键词：

CsPbCl3; luminescence; exciton; superradiance; quantum confinement;

D O I：

10.1016/S0038-1098(03)00563-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

High-quality CsPbCl3 films composed of crystallites with narrow size distributions are achieved for various size levels, from microcrystalline to polycrystalline, by a novel heat-treatment method applied to the same amorphous films. Their photoluminescence is dominated by free-exciton emission at every size level without showing trapped-exciton emission in great contrast to the case for single crystals. The microcrystalline state shows more than an order of magnitude stronger free-exciton emission than the polycrystalline state, and exhibits intense stimulated emission under high-power excitation. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：731 / 736

页数：6

共 35 条

[1]

Aceves R, 2001, PHYS STATUS SOLIDI B, V225, P247, DOI 10.1002/(SICI)1521-3951(200105)225:1<247::AID-PSSB247>3.0.CO

[2]

2-L

[3] Spectroscopy of CsPbBr3 quantum dots in CsBr:Pb crystals [J].

Aceves, R ;

Babin, V ;

Flores, MB ;

Fabeni, P ;

Maaroos, A ;

Nikl, M ;

Nitsch, K ;

Pazzi, GP ;

Salas, RP ;

Sildos, I ;

Zazubovich, N ;

Zazubovich, S .

JOURNAL OF LUMINESCENCE, 2001, 93 (01) :27-41

[4]

Amitin L. N., 1979, Soviet Physics - Solid State, V21, P2041

[5] Polarized luminescence of CsPbBr3 nanocrystals (quantum dots) in CsBr:Pb single crystal [J].

Babin, V ;

Fabeni, P ;

Nikl, M ;

Pazzi, GP ;

Sildos, I ;

Zazubovich, N ;

Zazubovich, S .

CHEMICAL PHYSICS LETTERS, 1999, 314 (1-2) :31-36

[6] Excitonic luminescence in CsPbCl3 crystals under intense excitation [J].

Baltog, I ;

Mihut, L ;

Lefrant, S .

JOURNAL OF LUMINESCENCE, 1996, 68 (05) :271-277

[7]

Fabeni P, 1998, ELEC SOC S, V97, P186

[8]

Gaponenko S.V, 1998, OPTICAL PROPERTIES S, P84

[9] UV/VIS-SPECTROSCOPIC STUDIES OF COLD CONDENSED METAL METAL HALIDE FILMS WITH AND WITHOUT MATRIX-ISOLATION [J].

GOTTWALD, H ;

WEIL, KG .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1988, 92 (01) :60-64

[10] PROPERTIES OF COLD CONDENSED SILVER-CHLORIDE AND OF COCONDENSED SILVER SILVER-CHLORIDE FILMS .1. UV-VIS-SPECTRA [J].

GOTTWALD, H ;

LIESER, T ;

WEIL, KG ;

WEISS, A .

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1985, 40 (07) :677-682

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