Скачать или смотреть Professor Daniel Bellet | WIN Seminar Series

On December 3 2018, Daniel Bellet – professor in the Department of Physics at Grenoble Institute of Technology – visited WIN as a part of the WIN Seminar Series.

“Nanomaterials for Transparent Electrodes: Properties, Challenges and Prospects”

The past few years have seen a considerable amount of research devoted to nanostructured transparent conductive materials which play a pivotal role in many modern devices such as: solar cells, flexible light-emitting devices, touch screens, electromagnetic devices or flexible transparent thin film heaters. Currently, the most commonly used material for such applications (ITO: Tin-doped Indium Oxide) suffers from two major drawbacks: indium scarcity and brittleness.

Among emerging transparent electrode, silver nanowire (AgNW) networks appear as a promising substitute to ITO since these percolating networks exhibit excellent properties with sheet resistance of a few Ω/sq and optical transparency of 90%, fulfilling the requirements for many applications. It also shows very good electro-mechanical properties. Their main properties, the influence of post treatments or the network density and nanowire size but as well their stability will be discussed, thanks to both experimental and numerical approaches. Some applications will be developed such as their use as transparent heaters or in solar cells.

Other indium-free transparent conductive oxide (TCO) layers have been investigated and some exhibit interesting properties. This contribution aims at presenting briefly the main properties of transparent electrodes as well as the challenges which still remain in terms of efficient integration in devices.

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