Growth of CdTe thin films on graphene by close-spaced sublimation method

2013 ◽  
Vol 103 (23) ◽  
pp. 231910 ◽  
Author(s):  
Younghun Jung ◽  
Gwangseok Yang ◽  
Seungju Chun ◽  
Donghwan Kim ◽  
Jihyun Kim
Keyword(s):  
Thin Films ◽  
Sublimation Method ◽  
Cdte Thin Films

EFFECT OF THE CdCl2 TREATMENT ON THE MORPHOLOGY AND STRUCTURAL PROPERTIES OF CdTe THIN FILMS DEPOSITED BY THE CSS METHOD

2002 ◽  
Vol 09 (05n06) ◽  
pp. 1681-1685 ◽  
Author(s):  
H. INFANTE ◽  
G. GORDILLO
Keyword(s):  
Thin Films ◽  
Thermal Annealing ◽  
Cubic Phase ◽  
Thermal Treatments ◽  
X Ray Diffraction ◽  
Force Microscopy ◽  
Atomic Force ◽  
Sublimation Method ◽  
Cdcl2 Treatment ◽  
Cdte Thin Films

CdTe thin films deposited by the CSS (close spaced sublimation) method, with adequate properties to be used as absorber layer in solar cells, were submitted to a chemical treatment in a saturated CdCl2 solution, followed by thermal annealing in air at 400°C, in order to improve the electronic properties. The effect of chemical and thermal treatments on the morphological and crystallographic properties was studied through atomic force microscopy (AFM) and X-ray diffraction (XRD) measurements. The studies revealed that the CdTe grows in the cubic phase and that the postdeposition treatments affect the morphology as well as the crystallographic properties; the effect on the morphology is significantly stronger. Increase of the grain size and roughness was observed in samples treated chemically and thermally. On the other hand, no effects were identified on the crystalline structure as induced by the treatments, although recrystallization was observed after thermal annealing.

Structural reproducibility of CdTe thin films deposited on different substrates by close space sublimation method

2011 ◽  
Vol 209 (2) ◽  
pp. 272-276 ◽  
Author(s):  
T. Potlog ◽  
N. Spalatu ◽  
N. Maticiuc ◽  
J. Hiie ◽  
V. Valdna ◽  
...  
Keyword(s):  
Thin Films ◽  
Close Space Sublimation ◽  
Sublimation Method ◽  
Cdte Thin Films ◽  
Space Sublimation

scholarly journals Post-growth CdCl_2 treatment on CdTe thin films grown on graphene layers using a close-spaced sublimation method

2014 ◽  
Vol 22 (S3) ◽  
pp. A986 ◽  
Author(s):  
Younghun Jung ◽  
Gwangseok Yang ◽  
Seungju Chun ◽  
Donghwan Kim ◽  
Jihyun Kim
Keyword(s):  
Thin Films ◽  
Graphene Layers ◽  
Sublimation Method ◽  
Cdte Thin Films

The Surface Morphology of CdTe Thin Films Obtained by Open Evaporation in Vacuum

2017 ◽  
Vol 9 (5) ◽  
pp. 05016-1-05016-5 ◽  
Author(s):  
Y. P. Saliy ◽  
◽  
L. I. Nykyruy ◽  
R. S. Yavorskyi ◽  
S. Adamiak ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Morphology ◽  
Cdte Thin Films

Nanocrystalline Solutions as Precursors to The Spray Deposition of Cdte Thin Films

1995 ◽  
Vol 382 ◽  
Author(s):  
Martin Pehnt ◽  
Douglas L. Schulz ◽  
Calvin J. Curtis ◽  
Helio R. Moutinho ◽  
Amy Swartzlander ◽  
...  
Keyword(s):  
Thin Films ◽  
Atomic Force Microscopy ◽  
Grain Size ◽  
X Ray Diffraction ◽  
X Ray ◽  
Force Microscopy ◽  
Cdte Nanoparticles ◽  
Atomic Force ◽  
Vis Spectroscopy ◽  
Cdte Thin Films

ABSTRACTIn this article we report the first nanoparticle-derived route to smooth, dense, phase-pure CdTe thin films. Capped CdTe nanoparticles were prepared by injection of a mixture of Cd(CH3)2, (n-C8H17)3 PTe and (n-C8H17)3P into (n-C8H17)3PO at elevated temperatures. The resultant nanoparticles 32-45 Å in diameter were characterized by x-ray diffraction, UV-Vis spectroscopy, transmission electron microscopy, thermogravimetric analysis and energy dispersive x-ray spectroscopy. CdTe thin film deposition was accomplished by dissolving CdTe nanoparticles in butanol and then spraying the solution onto SnO2-coated glass substrates at variable susceptor temperatures. Smooth and dense CdTe thin films were obtained using growth temperatures approximately 200 °C less than conventional spray pyrolysis approaches. CdTe films were characterized by x-ray diffraction, UV-Vis spectroscopy, atomic force microscopy, and Auger electron spectroscopy. An increase in crystallinity and average grain size as determined by x-ray diffraction was noted as growth temperature was increased from 240 to 300 °C. This temperature dependence of film grain size was further confirmed by atomic force microscopy with no remnant nanocrystalline morphological features detected. UV-Vis characterization of the CdTe thin films revealed a gradual decrease of the band gap (i.e., elimination of nanocrystalline CdTe phase) as the growth temperature was increased with bulk CdTe optical properties observed for films grown at 300 °C.

Microstructural evolution of oxygen incorporated CdTe thin films deposited by close-spaced sublimation

2021 ◽  
pp. 130552
Author(s):  
M.N. Harif ◽  
K.S. Rahman ◽  
C. Doroody ◽  
H.N. Rosly ◽  
M. Isah ◽  
...  
Keyword(s):  
Thin Films ◽  
Microstructural Evolution ◽  
Cdte Thin Films ◽  
Evolution Of Oxygen

Formation of a stable ohmic contact to CdTe thin films through the diffusion of P from Ni-P

1995 ◽  
Vol 10 (1) ◽  
pp. 71-76 ◽  
Author(s):  
B Ghosh ◽  
S Purakayastha ◽  
P K Datta ◽  
R W Miles ◽  
M J Carter ◽  
...  
Keyword(s):  
Thin Films ◽  
Ohmic Contact ◽  
Cdte Thin Films
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