TY - JOUR
T1 - Study and application of colloidal systems for obtaining CdTe+Te thin films by spray pyrolysis
AU - Arce-Plazaa, Antonio
AU - Andrade-Arvizub, Jacob A.
AU - Courel, Maykel
AU - Alvaradoc, José Alberto
AU - Ortega-Lópezd, Mauricio
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - In this work, a new aqueous colloidal dispersion of CdTe was prepared and stabilized using NH4OH. Results shows, two different sizes of CdTe (20 nm and 60 nm widths) presented in solution. From this dispersion, CdTe thin films around 500 nm thicknesses were deposited by spray pyrolysis technique. Experimental conditions, dispersion composition, rheology and annealing temperature were optimized to obtain dense and crack-free CdTe thin films. CdTe thin films were characterized in regarding the optical, phase composition and structural properties. X-ray diffraction patterns indicates, face-centered cubic CdTe structure in bulk. Also, an additional diffraction plane corresponding to the hexagonal elemental tellurium (Te) was observed indicating a secondary phase over the film surface. Finally, it was found that such Te phases corresponds to nanorod-like morphology.
AB - In this work, a new aqueous colloidal dispersion of CdTe was prepared and stabilized using NH4OH. Results shows, two different sizes of CdTe (20 nm and 60 nm widths) presented in solution. From this dispersion, CdTe thin films around 500 nm thicknesses were deposited by spray pyrolysis technique. Experimental conditions, dispersion composition, rheology and annealing temperature were optimized to obtain dense and crack-free CdTe thin films. CdTe thin films were characterized in regarding the optical, phase composition and structural properties. X-ray diffraction patterns indicates, face-centered cubic CdTe structure in bulk. Also, an additional diffraction plane corresponding to the hexagonal elemental tellurium (Te) was observed indicating a secondary phase over the film surface. Finally, it was found that such Te phases corresponds to nanorod-like morphology.
KW - CdTe thin film
KW - Optical and structural properties
KW - Phase composition
KW - Spray pyrolysis
UR - http://www.scopus.com/inward/record.url?scp=85010002011&partnerID=8YFLogxK
U2 - 10.1016/j.jaap.2017.01.022
DO - 10.1016/j.jaap.2017.01.022
M3 - Artículo
AN - SCOPUS:85010002011
SN - 0165-2370
VL - 124
SP - 285
EP - 289
JO - Journal of Analytical and Applied Pyrolysis
JF - Journal of Analytical and Applied Pyrolysis
ER -