GROWTH AND OPTICAL-PROPERTIES OF CUGATE2 THIN-FILMS

被引:131
作者
NEUMANN, H [1 ]
HORIG, W [1 ]
RECCIUS, E [1 ]
SOBOTTA, H [1 ]
SCHUMANN, B [1 ]
KUHN, G [1 ]
机构
[1] KARL MARX UNIV,FACHBEREICH KRISTALLOG,SEKT CHEM,DDR-703 LEIPZIG,GER DEM REP
关键词
D O I
10.1016/0040-6090(79)90494-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
CuGaTe2 thin films with thicknesses in the range of 1000-2000 Å have been prepared by flash evaporation of pre-reacted material onto glass and silicon substrates. The films were single phase, polycrystalline and stoichiometric within 1%, as shown by transmission electron diffraction measurements and ion backscattering spectrometry. Four characteristic energy gaps of 1.227, 1.280, 1.97 and 2.67 eV were obtained from an analysis of the optical transmission spectra in the photon energy range from 1 to about 3 eV. A model is proposed for the band structure of CuGaTe2 near the point Γ of the Brillouin zone. Transmission measurements in the far infrared yielded three transverse optical mode frequencies of 166.4 cm-1, 201.4 cm-1 and 209.2 cm-1. © 1979.
引用
收藏
页码:13 / 22
页数:10
相关论文
共 32 条
[1]  
[Anonymous], 1959, FIZ TVERD TELA COLLE
[2]   PHASE-DIAGRAM OF (CUGATE2)1-X-(2CDTE)X SYSTEM AND SEMICONDUCTING PROPERTIES OF CUCD2GATE4 [J].
ARESTI, A ;
GARBATO, L ;
MANCA, P ;
RUCCI, A .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (05) :766-768
[3]  
BHAR GC, 1972, PHYS STATUS SOLIDI A, V13, P151
[4]  
BOIKO II, 1961, FIZ TVERD TELA, V3, P1950
[5]  
Born Max, 1954, DYNAMICAL THEORY CRY
[6]   DETERMINATION OF OPTICAL-CONSTANTS OF THIN-FILMS FROM MEASUREMENTS OF REFLECTANCE AND TRANSMITTANCE AT NORMAL INCIDENCE [J].
DENTON, RE ;
TOMLIN, SG ;
CAMPBELL, RD .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1972, 5 (04) :852-&
[7]  
Heavens O. S., 1955, OPTICAL PROPERTIES T
[8]   LATTICE-DYNAMICS OF AGGAS2 [J].
HOLAH, GD ;
WEBB, JS ;
MONTGOME.H .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1974, 7 (21) :3875-3890
[9]   ELECTRICAL AND OPTICAL-PROPERTIES OF CUGATE2 [J].
HORIG, W ;
KUHN, G ;
MOLLER, W ;
MULLER, A ;
NEUMANN, H ;
RECCIUS, E .
KRISTALL UND TECHNIK-CRYSTAL RESEARCH AND TECHNOLOGY, 1979, 14 (02) :229-242
[10]   TEMPERATURE-DEPENDENCE OF ABSORPTION-EDGE IN CUINSE2 [J].
HORIG, W ;
NEUMANN, H ;
HOBLER, HJ ;
KUHN, G .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1977, 80 (01) :K21-K24