TY - JOUR
T1 - Influence of the growth conditions on the photoluminescence spectrum of CdTe polycrystalline films deposited by the close space vapor transport technique
AU - Aguilar-Hernández, J.
AU - Contreras-Puente, G.
AU - Vidal-Larramendi, J.
AU - Vigil-Galán, O.
N1 - Funding Information:
O. Vigil-Galán (OVG) acknowledges CLAFM (Latinamerican Centre for Physics) for the partial support for his stay in México. This work was partially supported by CONACyT- México. J. Aguilar-Hernández, SNI, EDI fellowship. G. Contreras-Puente, SNI, EDI, COFAA fellowship.
PY - 2003/2/24
Y1 - 2003/2/24
N2 - A study of the influence of some growth parameters, the gradient of temperature between source and substrate and introduction of oxygen in the growth chamber, on the optical properties of CdTe thin films grown by Close Space Vapor Transport (CSVT) is presented. This study was carried out by means of photoluminescence (PL). The combined effect of the temperature gradient and oxygen in the growth chamber on the crystalline quality of CdTe thin films were analyzed. Important changes in the photoluminescence spectra were observed. A decrease of the intensity of the excitonic PL band is observed, as oxygen concentration increases. This accounts for an increase in the defect density due to the presence of oxygen.
AB - A study of the influence of some growth parameters, the gradient of temperature between source and substrate and introduction of oxygen in the growth chamber, on the optical properties of CdTe thin films grown by Close Space Vapor Transport (CSVT) is presented. This study was carried out by means of photoluminescence (PL). The combined effect of the temperature gradient and oxygen in the growth chamber on the crystalline quality of CdTe thin films were analyzed. Important changes in the photoluminescence spectra were observed. A decrease of the intensity of the excitonic PL band is observed, as oxygen concentration increases. This accounts for an increase in the defect density due to the presence of oxygen.
KW - CdTe thin films
KW - Close space vapor transport
KW - Growth conditions
KW - Photoluminescence
UR - http://www.scopus.com/inward/record.url?scp=0037463220&partnerID=8YFLogxK
U2 - 10.1016/S0040-6090(03)00063-4
DO - 10.1016/S0040-6090(03)00063-4
M3 - Artículo
SN - 0040-6090
VL - 426
SP - 132
EP - 134
JO - Thin Solid Films
JF - Thin Solid Films
IS - 1-2
ER -