Recent Advances in Silver Nanowires Electrodes for Flexible Organic/Perovskite Light-Emitting Diodes

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.

Femtosecond Laser Fabrication of Refractive/Diffractive Micro‐Optical Components on Hard Brittle Materials

“…[ 185,186 ] Organic light‐emitting diodes (OLEDs) are surface light‐source devices with good color quality. [ 187 ] The required collimated planar incoherent light source is achieved by combining a biconvex lens microlens array with the substrate of a discrete white OLED light source. [ 188 ] Compared with ordinary conventional devices, the obtained collimated white OLED light source exhibits 2.7 times higher brightness at the regular polar angle.…”

Rapid and effective method of laser metallization of dielectric materials using deep eutectic solvents with copper acetate

“…It is shown that they have a resistance close to the value of pure metal, as well as high adhesion to the surface. Thus, it is possible to use these copper patterns in practice, including for creating microelectronic devices based on LED [47][48] Based on the literature data presented in Table 1 and our experimental findings, it can be concluded that optimized parameters of laser irradiation can achieve scanning speeds comparable to those of established techniques such as selective laser sintering (SLS).The proposed method offers a high level of overall productivity and can be matched even with methods that have higher scanning speeds but require additional time-consuming procedures (such as SSAIL), taking into account the minimal substrate pretreatment and experimental stages. Furthermore, the proposed laser chemical liquid deposition technique can be conducted using continuous wave lasers, which have a simple design compared to pulsed lasers.…”

Stretchable Substrates with 3D Wave Patterned Surface for Enhanced Mechanical Stability of Indium Tin Oxide Electrodes

“…Although silver nanowire networks can reach similar opto-electrical properties as ITO, the synthesized nanowires require embedding in a conductive polymer to achieve low surface roughness, and the significant difference in diffusive and specular transmittance leads to a hazy look. [21][22][23] The second strategy is the attachment of a thin, bendable device on top of a pre-strained, elastomeric carrier substrate. Upon release of the strain, the carrier substrate contracts leading to a buckled device substrate surface, and the entire substrate would allow stretching up to the original level of pre-strain.…”