TY - JOUR
T1 - Physical properties of ZnxCd1-xS nanocrystalline layers synthesized by solution growth method
AU - Nagamani, K.
AU - Reddy, Vasudeva Reddy Minnam
AU - Lingappa, Yekula
AU - Ramakrishna Reddy, Kotte
AU - Miles, Robert
PY - 2012
Y1 - 2012
N2 - In recent years, zinc cadmium sulphide (ZnxCd1-xS) alloy compounds have paid much attention in the fields of opto-electronics, particularly in photovoltaic devices because of its tunable energy gap and the lattice parameters. The energy band gap of ZnxCd1-xS is controlled by the change of Zn-composition in order to suit the material properties with that of absorber material in solar cells. In this paper, we report on the effect of Zn-composition on physical properties of ZnxCd1-xS thin films deposited on corning glass substrates by solution growth method. The layers were prepared for different ‘x’ values that vary in the range, 0 – 1.0 at. %. The as-grown layers were characterized using EDAX, XRD, SEM, and UV-Vis-NIR spectrophotometers. All the layers showed a strong (002) plane as the preferred orientation that exhibited the hexagonal crystal structure. The composition of the layers agrees approximately with that of the elements in the solution. The films showed an average optical transmittance of 72 % at a zinc composition of 0.75 with a band gap of 3.88 eV.
AB - In recent years, zinc cadmium sulphide (ZnxCd1-xS) alloy compounds have paid much attention in the fields of opto-electronics, particularly in photovoltaic devices because of its tunable energy gap and the lattice parameters. The energy band gap of ZnxCd1-xS is controlled by the change of Zn-composition in order to suit the material properties with that of absorber material in solar cells. In this paper, we report on the effect of Zn-composition on physical properties of ZnxCd1-xS thin films deposited on corning glass substrates by solution growth method. The layers were prepared for different ‘x’ values that vary in the range, 0 – 1.0 at. %. The as-grown layers were characterized using EDAX, XRD, SEM, and UV-Vis-NIR spectrophotometers. All the layers showed a strong (002) plane as the preferred orientation that exhibited the hexagonal crystal structure. The composition of the layers agrees approximately with that of the elements in the solution. The films showed an average optical transmittance of 72 % at a zinc composition of 0.75 with a band gap of 3.88 eV.
KW - structure
KW - optical properties
U2 - 10.5923/j.ijoe.20120202.01
DO - 10.5923/j.ijoe.20120202.01
M3 - Article
SN - 2167-731X
VL - 2
SP - 1
EP - 4
JO - International Journal of Optoelectronic Engineering
JF - International Journal of Optoelectronic Engineering
IS - 2
ER -