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Title: High-Quality AZO/Au/AZO Sandwich Film with Ultralow Optical Loss and Resistivity for Transparent Flexible Electrodes

Journal Article · · ACS Applied Materials and Interfaces

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
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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Cited By (4)

Ultrathin Metal Films as the Transparent Electrode in ITO‐Free Organic Optoelectronic Devices journal January 2019
Optical and Electrical Properties of Transparent Conductive NTTO/Cu/NTTO Multilayer Films Deposited by Magnetron Sputtering journal July 2019
Azo‐Group‐Containing Organic Compounds as Electrode Materials in Full‐Cell Lithium‐Ion Batteries journal August 2019
Flexible Sensors—From Materials to Applications journal April 2019