High-Quality AZO/Au/AZO Sandwich Film with Ultralow Optical Loss and Resistivity for Transparent Flexible Electrodes.
High-Quality AZO/Au/AZO Sandwich Film with Ultralow Optical Loss and Resistivity for Transparent Flexible Electrodes.
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DOI：
10.1021/acsami.8b00685
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发表时间：
2018-04
影响因子：
9.5
通讯作者：
Hua Zhou;Jingqiao Xie;Manfang Mai;Jing Wang;Xiangqian Shen;Shuying Wang;L. Zhang;K. Kisslinger;Hui‐Qiong Wang;Jinxing Zhang;Yu Li;Junhong Deng;Shanming Ke;Xierong Zeng
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文献类型：
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作者：
Hua Zhou;Jingqiao Xie;Manfang Mai;Jing Wang;Xiangqian Shen;Shuying Wang;L. Zhang;K. Kisslinger;Hui‐Qiong Wang;Jinxing Zhang;Yu Li;Junhong Deng;Shanming Ke;Xierong Zeng
现代可拉伸光电设备（例如显示技术、太阳能电池和智能窗户）对透明柔性电极的需求不断增长。这种沉积在聚合物基底上的夹层膜电极是无法实现的，因为薄膜质量低，导致相对较大的光学损耗和电阻率，并且难以阐明光的干涉行为。在本文中，我们报道了一种具有优异光电性能的高质量AZO/Au/AZO夹层薄膜，例如，在可见光范围内的平均透射率约为81.7%（包括基板贡献），方块电阻为5 Ω/sq，品质因数（FoM）因子为~55.1。这些值远远领先于之前报道的夹层膜电极的值。此外，还利用透射光谱和数值模拟探索了涂层和金属层调制的光的干涉行为。特别是，基于AZO/Au/AZO夹层薄膜的加热器装置表现出高性能，例如响应时间短（〜5秒）和均匀的温度场。这项工作为通过应用具有原子级光滑表面的柔性基板来提高夹层电极的薄膜质量和设计高性能透明柔性器件提供了深入的见解。
Transparent flexible electrodes are in ever-growing demand for modern stretchable optoelectronic devices, such as display technologies, solar cells, and smart windows. 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 (FoM) 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. 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.