Transparent Conductive Films: Hybrid Material Structures vs. Single Material Composition
The use of novel materials for the production of transparent conductive films (TCFs) has evolved over many years of applications development and evaluation in a variety of products. Indium tin oxide (ITO) has been dominant for many decades, but as a shift to flexible film substrates has grown, the evaluation of alternative materials to overcome certain performance and physical limitations of ITO (e.g. flexibility) has been significant. Materials such as PEDOT, carbon nanotubes (CNT), silver nanowires (AgNW), copper nanowires (CuNW), metal mesh (MM), and various hybrid structures have seen development and inclusion into a range of new products. This talk will review the alternative materials and will discuss both benefits and limitations of each, as independent technology platforms, with a focused discussion of the benefit of considering hybrid structures of conductive metals and carbon nanotubes to overcome certain limitations. The use of hybrid structures has opened the opportunity to create novel products which were not previously recognized by Chasm and others. This has created a high level of customer interest for the implementation into new and innovative designs in a wide range of industrial and consumer applications which were previously not realized. Examples of such product applications and the performance, in use, will be described utilizing various hybrid structures which can be printed with simple, low cost patterning.