Optical Characterization of PbI2 Crystals Grown by Chemical Vapor Transport

2019 ◽  
Author(s):  
B.C. Kuo ◽  
D.Y. Lin ◽  
H.P. Hsu ◽  
S.B. Hwang
Keyword(s):  
Chemical Vapor ◽  
Optical Characterization ◽  
Vapor Transport ◽  
Chemical Vapor Transport

Optical Characterization of Deep Levels in Single Crystals of CuGaS2Grown by Chemical Vapor Transport

1989 ◽  
Vol 28 (Part 1, No. 1) ◽  
pp. 12-15 ◽  
Author(s):  
Katsu Tanaka ◽  
Koki Ishii ◽  
Seisuke Matsuda ◽  
Yoshitsugu Hasegawa ◽  
Katsuaki Sato
Keyword(s):  
Single Crystals ◽  
Chemical Vapor ◽  
Optical Characterization ◽  
Deep Levels ◽  
Vapor Transport ◽  
Chemical Vapor Transport

Optical Characterization of Undoped and Au-Doped MoS2 Single Crystals

2014 ◽  
Vol 627 ◽  
pp. 50-53 ◽  
Author(s):  
Mula Sigiro ◽  
Ying Sheng Huang ◽  
Ching Hwa Ho
Keyword(s):  
Single Crystals ◽  
Chemical Vapor ◽  
Optical Characterization ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Temperature Dependent ◽  
Direct Band ◽  
Transport Method ◽  
Vapor Transport Method

Single crystals of undoped and Au-doped MoS2were grown by the chemical vapor transport method using iodine as a transporting agent. The doping effect of the Au was characterized by temperature-dependent piezoreflectance (PzR) spectroscopy measurements in broad range of temperatures from 25 to 300 K. The temperature dependent PzR spectra revealed prominent features in the vicinity of direct-band-edge excitons for both investigated samples. The energies and broadening parameters of the A and B excitons were determined via a detailed line shape fit of the PzR spectra. We observed that Au doping strongly reduces the splitting between A and B excitons as well as it causes the redshift of observed transitions in relation to the undoped MoS2. The origin of observed excitons was discussed.

Growth and characterization of epitaxial films of ZnGeP2.

2002 ◽  
Vol 744 ◽  
Author(s):  
G.A. Verozubova ◽  
A. I. Gribenyukov ◽  
M.C. Ohmer ◽  
N.C. Fernelius ◽  
J.T. Goldstein
Keyword(s):  
Vacancy Concentration ◽  
Chemical Vapor ◽  
Epitaxial Films ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Photoluminescence Properties ◽  
Vapor Growth ◽  
Homoepitaxial Layers ◽  
Crystal Lattice Parameters

ABSTRACTThermodynamic analysis of the vapor phase over ZnGeP2 in Zn-Ge-P-Cl system has been carried out. The analysis showed that this system can be used for the vapor growth of ZnGeP2. Homoepitaxial layers of ZnGeP2 were grown in a closed system using chemical vapor transport. Electrical and photoluminescence properties of the layers were studied, and crystal lattice parameters were measured. Comparison of properties for bulk and vapor grown ZnGeP2 crystals were carried out. It was found that the vapor grown crystals have more perfect structure than the bulk ones, particularly, they have significantly lower vacancy concentration.

Polarization dependent Raman spectroscopy characterization of kesterite Cu2ZnSnS4 single crystals

2013 ◽  
Vol 1538 ◽  
pp. 95-101 ◽  
Author(s):  
D. O. Dumcenco ◽  
Y. P. Wang ◽  
S. Levcenco ◽  
K. K. Tiong ◽  
Y. S. Huang
Keyword(s):  
Raman Spectroscopy ◽  
Single Crystals ◽  
Theoretical Calculations ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
Vibrational Properties ◽  
Scattering Measurements ◽  
Transport Technique

ABSTRACTThe vibrational properties of kesterite Cu2ZnSnS4 (CZTS) single crystals were studied by polarization-dependent Raman scattering measurements. The CZTS crystals grown by chemical vapor transport technique using iodine trichloride as a transport agent consist of several mirror-like planes. The detailed analysis of the experimental spectra obtained from different planes allows determining the symmetry assignment of the observed Raman-active modes. The wavenumber values of Raman-active modes are compared with the results of recent theoretical calculations. The presented data are useful for examination of CZTS absorber films applied for solar cells to clarify the existence of structural or phase inhomogeneities.

Chemical vapor transport and characterization of MnBi2Se4

2017 ◽  
Vol 459 ◽  
pp. 81-86 ◽  
Author(s):  
Christian Nowka ◽  
Markus Gellesch ◽  
Jorge Enrique Hamann Borrero ◽  
Sven Partzsch ◽  
Christoph Wuttke ◽  
...  
Keyword(s):  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport

Preparation and characterization of copper(ii) oxide single crystals by chemical vapor transport

1989 ◽  
Vol 24 (8) ◽  
pp. 1005-1010 ◽  
Author(s):  
W. DeSisto ◽  
B.T. Collins ◽  
R. Kershaw ◽  
K. Dwight ◽  
A. Wold
Keyword(s):  
Single Crystals ◽  
Chemical Vapor ◽  
Vapor Transport ◽  
Chemical Vapor Transport

Synthesis and Characterization of FeO+ Nanosheets

2013 ◽  
Vol 544 ◽  
pp. 148-151 ◽  
Author(s):  
Jun Guo ◽  
Cai Xia Li ◽  
Lin Zhang ◽  
Jin Feng Xia ◽  
Danyu Jiang ◽  
...  
Keyword(s):  
Colloidal Suspension ◽  
Chemical Vapor ◽  
Butyl Alcohol ◽  
Vapor Transport ◽  
Chemical Vapor Transport ◽  
X Ray Diffraction ◽  
X Ray ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron

The layered FeOCl has been synthesized from Fe2O3 and FeCl3 by chemical vapor transport technique at 380°C., and an intercalation of sodium benzoate into as-synthesized FeOCl was conduct. After the intercalation composites were sonicated for 4 h in butyl alcohol, the colloidal suspension of layered iron oxide nanosheets was obtained. The FeOCl and the intercalation composites were analyzed by powder X-ray diffraction (XRD). Transmission Electron Microscopy (TEM) was also used to characterize the morphologies of the FeO+ Nanosheets. Except to this, the selected area electron diffraction was also performed to examine the iron nanosheets.

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