Vitanov, P., Ivanova, T., Dikov, H., Terziyska, P., Ganchev, M., Petkov, N., Georgiev, Y. and Asenov, A. (2022) Effect of a discontinuous Ag layer on optical and electrical properties of ZnO/Ag/ZnOStructures. Coatings, 12(9), 1324. (doi: 10.3390/coatings12091324)
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Abstract
ZnO/Ag/ZnO nanolaminate structures were deposited by consecutive RF sputtering at room temperature.The optical transparency, sheet resistance, and figure of merit are determined in relation to the deposition time of Ag and to the film thickness of the ZnO top layer. An improved transmittance has been found in the visible spectral range of the ZnO/Ag/ZnO structure compared to ZnO multilayers without Ag. High transmittance of 98% at 550 nm, sheet resistance of 8 Ω/sq, and figure of merit (FOM) of 111.01 × 10−3 Ω−1are achieved for an optimized ZnO/Ag/ZnO nanolaminate structure. It is suggested that the good optical and electrical properties are due to the deposition of the discontinuous Ag layer. The electrical metallic type conductivity is caused by planar located silver metal granules. The deposition of a discrete layer of Ag nano-granules is confirmed by atomic force microscopy (AFM) and cross-section high-resolution transmission electron microscopy (HRTEM) observations.
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors kindly acknowledge financial support from project № BG05M2OP001-1.002- 0014 “Center of competence HITMOBIL—Technologies and systems for generation, storage and consumption of clean energy”, funded by Operational Programme “Science and Education For Smart Growth” 2014–2020, co-funded by the EU from European Regional Development Fund. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Asenov, Professor Asen |
| Creator Roles: | |
| Authors: | Vitanov, P., Ivanova, T., Dikov, H., Terziyska, P., Ganchev, M., Petkov, N., Georgiev, Y., and Asenov, A. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Coatings |
| Publisher: | MDPI |
| ISSN: | 2079-6412 |
| ISSN (Online): | 2079-6412 |
| Published Online: | 11 September 2022 |
| Copyright Holders: | Copyright © 2022 The Authors |
| First Published: | First published in Coatings 12(9): 1324 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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