The Simulations on Ag Film Electrode for Its Semi-Transparency Mechanism
Abstract
In this paper, the Ag metal thin film electrode replacing ITO used as transparent electrode is attempted. We mainly reveal the mechanism through theoretical simulations and supply the means to make the metal type and thickness selection. The calculation method of metal’s dielectric function is introduced based on the origin of metal’s dielectric properties. We deduce the two models of Lorentz-Drude model and Drude model and indicate the relation between complex refractive index and dielectric function. Also, the optical simulation approaches are provided by transfer matrix method for optical films, such as for computing the transmittance, reflectance, absorption. We provides the basis for metal selection of semi-transparency materials and their thickness. On simulated results, considering the compromising situations including good conductivity, 20 nm Ag is a good selection for semi-transparent metal electrode rather than Al in real OLEDs (Organic Light-emitting Diodes) fabrications.
Keywords
Ag semi-transparent film electrode, Dielectric function, Optical simulations, OLED fabrications.
DOI
10.12783/dtmse/ammme2016/6929
10.12783/dtmse/ammme2016/6929
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