Excitonic luminescence in two-dimensionally confined layered sulfide oxides

被引：9

作者：

Ogino, Hiraku ^{[1
]}

Shimoyama, Jun-ichi ^{[1
]}

Kishio, Kohji ^{[1
]}

Katsura, Yukari ^{[2
]}

Tsuboi, Mizuki ^{[3
]}

Yamanoi, Kohei ^{[3
]}

Cadatal-Raduban, Marilou ^{[3
]}

Nakazato, Tomoharu ^{[3
]}

Shimizu, Toshihiko ^{[3
]}

Sarukura, Nobuhiko ^{[3
]}

机构：

[1] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[2] RIKEN, Wako, Saitama 3510198, Japan

[3] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 19期

关键词：

copper compounds; energy gap; excitons; fluorescence; inhomogeneous media; scandium compounds; strontium compounds; thermal stability; wide band gap semiconductors; SEMICONDUCTOR; OXYSULFIDES; EXAMPLE;

D O I：

10.1063/1.4764941

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A layered sulfide oxide, Sr2ScCuSO3, is synthesized and its electronic structure and luminescence properties are investigated. Sr2ScCuSO3 is composed of alternating layers of antifluoride type sulfide and perovskite-like oxide. Electronic structure calculations reveal that Sr2ScCuSO3 is a direct band gap semiconductor with a relatively large band gap. Excitonic luminescence was observed from Sr2ScCuSO3 and Sr3Sc2Cu2S2O5. The temperature stability of the luminescence intensity of Sr2ScCuSO3 was higher than that of Sr3Sc2Cu2S2O5. Control of the crystal structure might allow the excitonic luminescence properties of such two-dimensional compounds to be enhanced. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4764941]

引用

页数：3

共 17 条

[1] Blaha P., 2001, CALCULATING CRYST PR, V60
[2] Opto-electronic properties and light-emitting device application of widegap layered oxychalcogenides:: LaCuOCh (Ch = chalcogen) and La2CdO2Se2
Hiramatsu, Hidenori
Kamioka, Hayato
Ueda, Kazushige
Ohta, Hiromichi
Kamiya, Toshio
Hirano, Masahiro
Hosono, Hideo
[J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2006, 203 (11): : 2800 - 2811
[3] EXCITON-STATE IN TWO-DIMENSIONAL PEROVSKITE SEMICONDUCTOR (C10H21NH3)2PBI4
ISHIHARA, T
TAKAHASHI, J
GOTO, T
[J]. SOLID STATE COMMUNICATIONS, 1989, 69 (09) : 933 - 936
[4] Three-dimensional visualization in powder diffraction
Izumi, Fujio
Momma, Koichi
[J]. APPLIED CRYSTALLOGRAPHY XX, 2007, 130 : 15 - 20
[5] A new iron pnictide oxide (Fe2As2)(Ca5(Mg, Ti)4Oy) and a new phase in the Fe-As-Ca-Mg-Ti-O system
Ogino, Hiraku
Shimizu, Yasuaki
Kawaguchi, Naoto
Kishio, Kohji
Shimoyama, Jun-ichi
Tohei, Tetsuya
Ikuhara, Yuichi
[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2011, 24 (08)
[6] New candidates for superconductors;: A series of layered oxysulfides (Cu2S2)(Srn+1MnO3n-1).
Otzschi, K
Ogino, H
Shimoyama, J
Kishio, K
[J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1999, 117 (3-4) : 729 - 733
[7] Palazzi M., 1982, RARE EARTHS MOD SCI, V3, P347
[8] Perdew JP, 1997, PHYS REV LETT, V78, P1396, DOI 10.1103/PhysRevLett.77.3865
[9] (Cu2S2)(Sr3SC2O5)-A Layered, Direct Band Gap, p-Type Transparent Conducting Oxychalcogenide: A Theoretical Analysis.
Scanlon, David O.
Watson, Graeme W.
[J]. CHEMISTRY OF MATERIALS, 2009, 21 (22) : 5435 - 5442
[10] Quantum confinement for large light output from pure semiconducting scintillators
Shibuya, K
Koshimizu, M
Asai, K
Shibata, H
[J]. APPLIED PHYSICS LETTERS, 2004, 84 (22) : 4370 - 4372

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