Improved performance of Mg-Y alloy thin film switchable mirrors after coating with a superhydrophobic surface
Improved performance of Mg-Y alloy thin film switchable mirrors after coating with a superhydrophobic surface
复制标题
超疏水表面涂层后Mg-Y合金薄膜可切换镜的性能改善
DOI：
10.1016/j.apsusc.2017.01.106
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发表时间：
2017-05
影响因子：
6.7
通讯作者：
Ping Jin
中科院分区：
文献类型：
--
作者：
Yunchuan Xin;Saren;Shanhu Bao;Ping Jin
镁基可切换镜可以由于氢化和脱氢而在透明和反射状态之间可逆地改变其光学性质。通过调节薄膜的反射状态来控制太阳辐射的透射率，这些薄膜可以潜在地应用于新型节能窗户。本文采用直流磁控溅射法制备了镁钇合金薄膜。然而，可切换反射镜在透明状态下的光透射率和切换耐久性太差，不能满足实际需求。为了提高Mg-Y/Pd开关镜的开关耐久性、透光率和表面功能化程度，采用热真空镀膜法在聚四氟乙烯（PTFE）上涂覆一层薄膜作为Mg-Y/Pd开关镜的顶层。PTFE层具有多孔网络结构，并表现出超疏水表面，水接触角约为152°。通过表征，PTFE薄膜对Mg的氧化有很好的保护作用，薄膜的开关耐久性提高了3倍，并且在薄膜顶部覆盖PTFE后，薄膜的透光率提高了7%。
The magnesium based switchable mirrors can reversibly change their optical properties between the transparent and the reflective state as a result of hydrogenation and dehydrogenation. These films can potentially be applied as new energy-saving windows, by controlling the transmittance of solar radiation through the regulation of their reflective state. In this study, magnesium–yttrium (Mg–Y) alloy thin films were prepared using a DC magnetron sputtering method. However, the luminous transmittance in the transparent state and the switching durability of switchable mirrors are too poor to satisfy practical demands. In order to improve the films switching durability, luminous transmittance and the surface functionalization, polytetrafluoroethylene (PTFE) was coated with thermal vacuum deposition for use as the top layer of Mg–Y/Pd switchable mirrors. The PTFE layer had a porous network structure and exhibited a superhydrophobic surface with a water contact angle of approximately 152°. By characterization, PTFE thin films shows the excellent protection role against the oxidization of Mg, the switching durability of the films were improved 3 times, and also shows the antireflection role the luminous transmission of films was enhanced by 7% through the top covered with PTFE.
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影响因子：
6.2
作者：
Griessen, R;Huiberts, JN;Notten, PHL
通讯作者：
Notten, PHL
影响因子：
4
作者：
P. Sluis;M. Ouwerkerk;P. A. Duine
通讯作者：
P. Sluis;M. Ouwerkerk;P. A. Duine
影响因子：
6.6
作者：
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通讯作者：
J. Isidorsson;I. Giebels;E. S. Kooij;N. Koeman;J. Rector;A. Gogh;R. Griessen
影响因子：
6.9
作者：
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通讯作者：
K. Yoshimura;Y. Yamada;S. Bao;K. Tajima;M. Okada
影响因子：
6.9
作者：
Y. Yamada;H. Sasaki;K. Tajima;M. Okada;K. Yoshimura
通讯作者：
Y. Yamada;H. Sasaki;K. Tajima;M. Okada;K. Yoshimura