Open AccessHaze ratio enhancement using a closely packed ZnO monolayer structure
Author(s) -
Shih-Shou Lo,
Dison Haung,
Der-Jun Jan
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.000662
Subject(s) - haze , materials science , transmittance , thin film , monolayer , optics , spheres , visible spectrum , trapping , optoelectronics , nanotechnology , ecology , physics , astronomy , meteorology , biology
A ZnO thin-film that comprised a ZnO monolayer close-packed structure embedded in ZnO sol-gel was fabricated. The structure contained ZnO spheres of various sizes. At normal incidence, the mean optical transmittance of the thin-film was 60% in the visible region when the structure contained spheres with a diameter of 300 nm. An average haze ratio of 80% was obtained from the thin-film when the structure was formed using 500 nm-diameter spheres. The thin-film exhibits broad-band transparency and a high haze ratio. It can be used as a light-trapping structure in an ultrathin solar cell.