Abstract
Flexible organic light-emitting diodes and perovskite light-emitting diodes (PeLEDs) have been investigated as an innovative category of revolutionary LED devices for next-generation flat display and lighting applications. A transparent conductive electrode is a key component in flexible OLEDs and PeLEDs, and has been the limitation of the development in this area. Silver nanowires (AgNWs) have been regarded as the most suitable alternative material in TCEs, due to the economical solution synthesis and compatibility with roll-to-roll technology. This mini-review addresses the advances in silver nanowires electrodes for flexible organic/perovskite light-emitting diodes, and the relationship between electrode optimization and device performance is demonstrated. Moreover, the potential strategies and perspectives for their further development of AgNWs-based flexible OLEDs and PeLEDs are presented.
Highlights
Wearable electronics are revolutionizing how people interact with the world and each other (Afroj et al, 2020)
Large-scale coating of silver nanowires has been demonstrated, and the transmittance at 550 nm can be over 80% for 9 Ω/sq silver nanowire electrodes
Silver nanowires are highly attractive for transparent electrodes; improved processing techniques must be developed to form ultrathin coatings with low surface roughness (Guo et al, 2013)
Summary
Wearable electronics are revolutionizing how people interact with the world and each other (Afroj et al, 2020). It is necessary to develop alternatives to ITO as the transparent conductive electrodes (TCEs) in flexible electronics Silver nanowires (AgNWs) have been investigated as a potential ITO replacement, as the AgNW network can reproduce the high surface conductivity and visual transparency of ITO, and have the superior mechanical performance (M.Abbasi et al, 2015; Tan et al, 2020). This mini-review focuses on the characteristics of AgNWs electrodes and their advantages overwhelming other flexible TCEs. Besides, the evolution of device performance of AgNWs-based flexible OLEDs and PeLEDs are summarized. The future development of silver nanowires electrodes for flexible organic/perovskite lightemitting diodes is prospected
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