TY - JOUR
T1 - Estudios ópticos de películas semiconductoras ternarias de ZnxCd1-xSe crecidas por CSVT
AU - Escamilla-Esquivel, A.
AU - Ortiz-López, J.
AU - Contreras-Puente, G.
AU - Zelaya-Angel, O.
PY - 1997/10
Y1 - 1997/10
N2 - ZnxCd1-xSe policrystalline thin films grown by closed Spaced vapor Transport (CSVT) were studied by X-Ray diffraction, optical absorption spectroscopy, scanning electron microscopy, Raman spectroscopy and photoluminescence. Our studies show that the structure is cubic (zinc-blend) for x ≥ 0.7, hexagonal (wurtzite) for x ≤ 0.4 and for the intermediate range 0.4 < x < 0.7 both phases coexist. Raman spectroscopy confirms these results and in addition an intermediate vibrational behavior is observed in which impurity modes of Cd in ZnSe and Zn in CdSe evolve along with LO and TO phonons throughout the mixture.
AB - ZnxCd1-xSe policrystalline thin films grown by closed Spaced vapor Transport (CSVT) were studied by X-Ray diffraction, optical absorption spectroscopy, scanning electron microscopy, Raman spectroscopy and photoluminescence. Our studies show that the structure is cubic (zinc-blend) for x ≥ 0.7, hexagonal (wurtzite) for x ≤ 0.4 and for the intermediate range 0.4 < x < 0.7 both phases coexist. Raman spectroscopy confirms these results and in addition an intermediate vibrational behavior is observed in which impurity modes of Cd in ZnSe and Zn in CdSe evolve along with LO and TO phonons throughout the mixture.
UR - http://www.scopus.com/inward/record.url?scp=0346446137&partnerID=8YFLogxK
M3 - Artículo
SN - 0035-001X
VL - 43
SP - 765
EP - 775
JO - Revista Mexicana de Fisica
JF - Revista Mexicana de Fisica
IS - 5
ER -