TY - JOUR
AU - Hasanov, Ilham
AB - Optical constants of CdS:O window layers for solar cells were studied as a function of the oxygen content. The CdS:O thin films were deposited on glass substrates in the presence of oxygen at 0, 2, 3 and 5% values of O/Ar ratio by rf magnetron sputtering. Ellipsometric measurements on CdS:O thin films were carried out over 0.75–6.0 eV photon energies at room temperature. Optical constants were determined by using a the best‐fit dispersion model. Broadening of spectral features of the obtained optical constants is found to increase with increasing O/Ar ratio. Besides, the CdS:O films grown at 100 °C as compared to those grown at 200 °C exhibit increased spectral broadening. In fact, almost complete smearing of band gap spectral feature is observed for CdS:O films deposited at 5% value of O/Ar ratio, resulting in appreciable transparency of the films in a spectral range above the energy gap of CdS. This, in turn, leads to an increased carrier collection in the UV spectral range and allows to considering CdS:O film as a candidate for improved window‐layer material for solar cell application. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
TI - Optical characterization of non‐annealed CdS:O films for window layers in solar cells
JF - Physica Status Solidi (C): Current Topics in Solid State Physics
DO - 10.1002/pssc.201200834
DA - 2013-08-01
UR - https://www.deepdyve.com/lp/wiley/optical-characterization-of-non-annealed-cds-o-films-for-window-layers-R0VVt7Eos9
SP - 1107
EP - 1110
VL - 10
IS - 7‐8
DP - DeepDyve
ER -