Characteristics of MoO3 films grown by molecular beam epitaxy

被引：44

作者：

Koike, Kazuto ^{[1
]}

Wada, Ryota ^{[1
]}

Yagi, Shinji ^{[1
]}

Harada, Yoshiyuki ^{[1
]}

Sasa, Shigehiko ^{[1
]}

Yano, Mitsuaki ^{[1
]}

机构：

[1] Osaka Inst Technol, Nanomat Microdevices Res Ctr, Osaka 5358585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2014年 / 53卷 / 05期

关键词：

THIN-FILMS;

D O I：

10.7567/JJAP.53.05FJ02

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Characterization of the MoO3 films grown by molecular beam epitaxy on c-plane sapphire substrates was conducted. X-ray diffraction and Raman scattering measurements revealed that amorphous, (100) beta-phase, and (010) alpha-phase MoO3 films were preferentially grown at 150, 200, and 350 degrees C, respectively. Their optical bandgap energies were estimated to be similar to 3.5 eV for the amorphous, similar to 3.7 eV for the beta-phase, and similar to 4.1 eV for the alpha-phase films. Intense near-band-edge emission was observed from the alpha-phase films even at room temperature. Postgrowth annealing effect on the beta- and the alpha-phase MoO3 films was also studied, and it was found that the beta-phase films were completely transformed into stable alpha-phase films at 600 degrees C, accompanied by a bandgap increase to similar to 4.1 eV. (C) 2014 The Japan Society of Applied Physics

引用

页数：4

共 16 条

[1] Iteratively derived optical constants of MoO3 polycrystalline thin films prepared by CVD [J].

Abdellaoui, A ;

Leveque, G ;

Donnadieu, A ;

Bath, A ;

Bouchikhi, B .

THIN SOLID FILMS, 1997, 304 (1-2) :39-44

[2] Morphology and structure of hexagonal MoO3 nanorods [J].

Atuchin, V. V. ;

Gavrilova, T. A. ;

Kostrovsky, V. G. ;

Pokrovsky, L. D. ;

Troitskaia, I. B. .

INORGANIC MATERIALS, 2008, 44 (06) :622-627

[3] Enhanced Charge Carrier Mobility in Two-Dimensional High Dielectric Molybdenum Oxide [J].

Balendhran, Sivacarendran ;

Deng, Junkai ;

Ou, Jian Zhen ;

Walia, Sumeet ;

Scott, James ;

Tang, Jianshi ;

Wang, Kang L. ;

Field, Matthew R. ;

Russo, Salvy ;

Zhuiykov, Serge ;

Strano, Michael S. ;

Medhekar, Nikhil ;

Sriram, Sharath ;

Bhaskaran, Madhu ;

Kalantar-zadeh, Kourosh .

ADVANCED MATERIALS, 2013, 25 (01) :109-114

[4] Epitaxial growth and properties of MoOx(2<x<2.75) films -: art. no. 083539 [J].

Bhosle, V ;

Tiwari, A ;

Narayan, J .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (08)

[5] SYNTHESIS AND PROPERTIES OF THIN-FILM POLYMORPHS OF MOLYBDENUM TRIOXIDE [J].

CARCIA, PF ;

MCCARRON, EM .

THIN SOLID FILMS, 1987, 155 (01) :53-63

[6] SYNTHESIS AND CHARACTERIZATION OF FLASH-EVAPORATED MOO3 THIN-FILMS [J].

JULIEN, C ;

KHELFA, A ;

HUSSAIN, OM ;

NAZRI, GA .

JOURNAL OF CRYSTAL GROWTH, 1995, 156 (03) :235-244

[7] Piezoelectric carrier confinement by lattice mismatch at ZnO/Zn0.6Mg0.4O heterointerface [J].

Koike, K ;

Hama, K ;

Nakashima, I ;

Takada, G ;

Ozaki, M ;

Ogata, K ;

Sasa, S ;

Inoue, M ;

Yano, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2004, 43 (10B) :L1372-L1375

[8] Raman spectroscopic studies of electrochromic a-MoO3 thin films [J].

Lee, SH ;

Seong, MJ ;

Tracy, CE ;

Mascarenhas, A ;

Pitts, JR ;

Deb, SK .

SOLID STATE IONICS, 2002, 147 (1-2) :129-133

[9]

Navas I, 2009, P INT C OPT PHOT, P137

[10] The Influence of Oxygen on the Structural and Optical Properties of MoO3 Thin Films Prepared Using the Laser-Assisted Evaporation Technique [J].

Pastrana, Y. A. ;

Torres, J. ;

Lopez-Carreno, L. D. ;

Martinez, H. M. .

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2013, 26 (07) :2475-2478

← 1 2 →