Choi Yumi, Kim Chang Su, Jo Sungjin
School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea.
Advanced Functional Thin Films Department, Korea Institute of Materials Science (KIMS), Changwon 51508, Korea.
Materials (Basel). 2018 Nov 9;11(11):2231. doi: 10.3390/ma11112231.
We investigated the effect of different spray-coating parameters on the electro-optical properties of Ag nanowires (NWs). Highly transparent and conductive Ag NW⁻graphene oxide (GO) hybrid electrodes were fabricated by using the spray-coating technique. The Ag NW percolation network was modified with GO and this led to a reduced sheet resistance of the Ag NW⁻GO electrode as the result of a decrease in the inter-nanowire contact resistance. Although electrical conductivity and optical transmittance of the Ag NW electrodes have a trade-off relationship, Ag NW⁻GO hybrid electrodes exhibited significantly improved sheet resistance and slightly decreased transmittance compared to Ag NW electrodes. Ag NW⁻GO hybrid electrodes were integrated into smart windows based on polymer-dispersed liquid crystals (PDLCs) for the first time. Experimental results showed that the electro-optical properties of the PDLCs based on Ag NW⁻GO electrodes were superior when compared to those of PDLCs based on only Ag NW electrodes. This study revealed that the hybrid Ag NW⁻GO electrode is a promising material for manufacturing the large-area flexible indium tin oxide (ITO)-free PDLCs.
我们研究了不同喷涂参数对银纳米线（NWs）电光性能的影响。采用喷涂技术制备了高透明导电的银纳米线⁻氧化石墨烯（GO）混合电极。用GO对银纳米线渗流网络进行了改性，由于纳米线间接触电阻的降低，导致银纳米线⁻GO电极的薄层电阻降低。尽管银纳米线电极的电导率和光学透过率存在权衡关系，但与银纳米线电极相比，银纳米线⁻GO混合电极的薄层电阻显著改善，透过率略有下降。银纳米线⁻GO混合电极首次被集成到基于聚合物分散液晶（PDLC）的智能窗中。实验结果表明，与仅基于银纳米线电极的PDLC相比，基于银纳米线⁻GO电极的PDLC的电光性能更优。这项研究表明，混合银纳米线⁻GO电极是制造大面积柔性无铟锡氧化物（ITO）的PDLC的一种有前途的材料。
