NDLI: A Method for Efficient Transmittance Spectrum Prediction of Transparent Composite Electrodes

Content Provider	Springer Nature Link
Author	Zhao, Zhao Dhar, A. Alford, T. L.
Copyright Year	2015
Abstract	The interest in indium-free transparent composite electrode (TCE), a thin metal layer embedded between two transparent metal oxide (TMO) layers resulting in TMO/metal/TMO composite structure, has grown recently with the advent of their high figures of merit and its potential application in photovoltaic applications. However, most of the work to date has focused on experimentally producing the best optically transmitting TCE. To better design TCEs and minimize experimental work, it would be useful to develop a model that predicts the optical transmission. In the current work, the transfer-matrix method is employed to calculate the transmittance spectrum of TCE. To validate this approach, the transmittance spectra of TiO$_{2}$/Au/TiO$_{2}$ and TiO$_{2}$/Ag/TiO$_{2}$ multilayer thin-film TCEs are calculated with use of extracted material parameters. The calculated transmittance spectrum of TiO$_{2}$/Au/TiO$_{2}$ matches the measured spectrum quite well. However, the calcualted transmittance of TiO$_{2}$/Ag/TiO$_{2}$ is higher than its measured transmittance. The presence of voids in the Ag film is probably responsible for the decreased transmittance of the TiO$_{2}$/Ag/TiO$_{2}$ sample, and the continuous Au film in TiO$_{2}$/Au/TiO$_{2}$ ensures a good agreement between transmittance prediction and measurement. Our approach is a reliable tool to predict the optical transmittance of TCE with continuous films, and it can efficiently expedite the selection from numerous possible combinations of transparent metal oxides and metals when developing TCEs for future photovoltaic applications. It can also serve as a convenient method to assess the continuity of embedded metal layer.
Starting Page	1612
Ending Page	1616
Page Count	5
File Format	PDF
ISSN	10474838
Journal	JOM
Volume Number	67
Issue Number	7
e-ISSN	15431851
Language	English
Publisher	Springer US
Publisher Date	2015-02-27
Publisher Institution	The Minerals, Metals & Materials Society (TMS)
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Engineering Chemistry/Food Science Physics Environment Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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