MOCVD Synthesis of Terbium Oxide Films and their Optical Properties

被引:20
作者
Belaya, Svetlana V. [1 ]
Bakovets, Vladimir V. [2 ]
Asanov, Igor P. [1 ,2 ]
Korolkov, Ilya V. [1 ]
Sulyaeva, Veronika S. [1 ]
机构
[1] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
关键词
Tb(thd)(3) precursor; Terbium oxides; X-ray photoelectron spectroscopy; LANTHANUM GADOLINIUM OXIDE; RAY-PHOTOEMISSION SPECTRA; CHEMICAL-VAPOR-DEPOSITION; THIN-FILMS; XPS; METALS; LASER; TB;
D O I
10.1002/cvde.201507153
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Terbium oxide films are deposited on silicon substrates by metal-organic (MO)CVD from a vapor of Tb(thd)(3) in argon. Terbium sesquioxide (C-form) is realized in this process. Annealing of the films in air at 800 degrees C, followed by cooling in air, leads to the formation of Tb4O7. The Ar ion-etching of the annealed films causes a reduction of Tb4+ to Tb3+. Optical E-g is estimated, photoluminescence spectra are investigated, and refractive indexes and dielectric constants are measured for terbium oxide films before and after annealing in air.
引用
收藏
页码:150 / 155
页数:6
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