Abstract
This experiment is focused to characterize electroluminescence (EL) properties related to transparent conductive oxide (TCO) like In2O3 or SnO2 being dispersedly inserted into the two different layered structures fabricated by screen printing method. X-ray diffraction and FE-SEM measurement were carried out to characterize the material properties of the ZnS-based EL devices depending on the layered structures and the material constitutions. The results show that the enhanced EL intensity with the TCO insertion is approximately 1.2 times greater than TCO-free sample under the 1-layered structure while in no significant improvement of EL intensity is observed under the 2-layered EL structure. But for the EL intensity comparison under the device structure, 2-layered EL structure having a separate dielectric layer is 1.4 times brighter than the 1-layered structure.
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