High-Quality AZO/Au/AZO Sandwich Film with Ultralow Optical Loss and Resistivity for Transparent Flexible Electrodes
- Shenzhen Univ., Shenzhen (China)
- Foshan Univ., Foshan (China)
- Beijing Normal Univ., Beijing (China)
- Xinjiang Univ., Urumqi (China)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Xiamen Univ., Xiamen (China)
- Southern Univ. of Science and Technology, Shenzhen (China)
Transparent flexible electrodes are in ever-growing demand for modern stretchable optoelectronic devices, such as, display technologies, solar cells, and smart window. Such sandwich-film-electrodes deposited on polymer substrates are unattainable because of the low quality of the films, inducing a relatively large optical loss and resistivity as well as a difficulty in elucidating the interference behavior of light. In this article, we report a high-quality AZO/Au/AZO sandwich film with excellent optoelectronic performance, e.g., an average transmittance of about 81.7% (including the substrate contribution) over the visible range, a sheet resistance of 5 Ω/sq and a figure-of-merit factor of ~55.1. These values are well ahead of those previously reported for sandwich-film-electrodes. Additionally, the interference behaviors of light modulated by the coat and metal layers have been explored with the employment of transmittance spectra and numerical simulations. In particular, a heater device based on an AZO/Au/AZO sandwich film exhibits high performance such as short response time (~5 s) and uniform temperature field. In conclusion, this work provides a deep insight into the improvement of the film quality of the sandwich electrodes and the design of high-performance transparent flexible devices by the application of a flexible substrate with an atomically smooth surface.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1462418
- Report Number(s):
- BNL-207902-2018-JAAM
- Journal Information:
- ACS Applied Materials and Interfaces, Vol. 10, Issue 18; ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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