첨가제 종류와 은 나노와이어 필름 특성의 상관관계

초록

Silver nanowires are attracting attention as a next-generation material for flexible electrodes due to their excellent flexibility, high conductivity, high transparency, and process convenience through solution process. The silver nanowire solution used in the production of such silver nanowire-based flexible electrodes shows excellent silver nanowire dispersion in solution state, and various additives are used together with silver nanowires to control film properties. However, since the requirements of silver nanowire film are different depending on the type of device application and the properties of the silver nanowire film change depending on the additives, it is important to know how the properties of the silver nanowire film change depending on the type of additive. In this study, we prepared silver nanowire solutions with six types of additives (CPTMS, PEG, HEC, MC, XG, and TA) that are commonly used in industry, and fabricated silver nanowire-based conductive film by spin-coating process. Then, we observed how the properties of the silver nanowire solution and film changed depending on the type and amounts of additives. Specifically, we examined the surface tension of the polar and dispersive components of silver nanowire solutions and investigated the surface energy, surface roughness and silver nanowire density of silver nanowire films.

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