Structural characterization and optical absorption spectrum of Cu3In5Te9 ordered defect semiconducting compound

被引：14

作者：

Guedez, E. ^{[1
]}

Mogollon, L. ^{[2
]}

Marcano, G. ^{[1
]}

Wasim, S. M. ^{[1
]}

Sanchez Perez, G. ^{[1
]}

Rincon, C. ^{[1
]}

机构：

[1] Univ Los Andes, Fac Ciencias, Dept Fis, Ctr Estudios Semicond, Merida 5101, Venezuela

[2] Univ Politecn Terr Kleber Ramirez, Grp Invest Ciencias Basicas Aplicadas, Ejido 5111, Venezuela

来源：

MATERIALS LETTERS | 2017年 / 186卷

关键词：

Semiconductors; Crystal structure; Optical properties; Ternary compounds; Ordered defect compounds; Cu3In5Te9; TERNARY COMPOUNDS; CUINTE2; ARRAYS; GA;

D O I：

10.1016/j.matlet.2016.09.122

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystal structure of the ordered defect compound Cu3In5Te9, which has recently emerged as an excellent candidate for thermoelectric applications, was refined by the Rietveld method using X-ray powder diffraction data. It was established that this material crystallizes in the tetragonal ordered defect chalcopyrite or thiogallate structure with space group I (4) over bar (No. 82). From the analysis of the optical absorption spectrum near the fundamental absorption edge it was also found that the energy gap is direct allowed and the band gap energy is about 0.952 eV at room temperature.

引用

页码：155 / 157

页数：3

共 19 条

[11] High-temperature thermoelectric properties of Cu2In4Te7 [J].

Plirdpring, Theerayuth ;

Kurosaki, Ken ;

Kosuga, Atsuko ;

Ishimaru, Manabu ;

Ohishi, Yuji ;

Muta, Hiroaki ;

Yamanaka, Shinsuke .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2012, 6 (04) :154-156

[12] Effect of ordered arrays of native defects on the crystal structure of In- and Ga-rich Cu-ternaries [J].

Rincón, C ;

Wasim, SM ;

Marín, G ;

Delgado, JM ;

Contreras, J .

APPLIED PHYSICS LETTERS, 2003, 83 (07) :1328-1330

[13] Raman spectra of CuInTe2, CuIn3Te5, and CuIn5Te8 ternary compounds [J].

Rincón, C ;

Wasim, SM ;

Marín, G ;

Hernández, E ;

Delgado, JM ;

Galibert, J .

JOURNAL OF APPLIED PHYSICS, 2000, 88 (06) :3439-3444

[14]

Rincon C., 2003, J PHYS CONDENS MATTE, V15

[15]

Tagirov V. I., 1980, Soviet Physics - Crystallography, V25, P237

[16] THE GROWTH BY THE HYBRID SPUTTERING AND EVAPORATION METHOD AND MICROSTRUCTURAL STUDIES OF CUINSE2 FILMS [J].

YANG, LC ;

XIAO, HZ ;

ROCKETT, A ;

SHAFARMAN, WN ;

BIRKMIRE, RW .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1995, 36 (04) :445-455

[17]

Yarema O., 2016, CHEM COMMUN

[18] Stabilization of ternary compounds via ordered arrays of defect pairs [J].

Zhang, SB ;

Wei, SH ;

Zunger, A .

PHYSICAL REVIEW LETTERS, 1997, 78 (21) :4059-4062

[19] A study of the electronic structures and optical properties of CuXTe2 (X = Al, Ga, In) ternary semiconductors [J].

Zhang Xian-Zhou ;

Shen Ke-Sheng ;

Jiao Zhao-Yong ;

Huang Xiao-Fen .

COMPUTATIONAL AND THEORETICAL CHEMISTRY, 2013, 1010 :67-72

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