Silicone Materials for Flexible Optoelectronic Devices

Abstract

Polysiloxanes and materials based on them (silicone materials) are of great interest in optoelectronics due to their high flexibility, good film-forming ability, and optical transparency. According to the literature, polysiloxanes are suggested to be very promising in the field of optoelectronics and could be employed in the composition of liquid crystal devices, computer memory drives organic light emitting diodes (OLED), and organic photovoltaic devices, including dye synthesized solar cells (DSSC). Polysiloxanes are also a promising material for novel optoectronic devices, such as LEDs based on arrays of III–V nanowires (NWs). In this review, we analyze the currently existing types of silicone materials and their main properties, which are used in optoelectronic device development.

Self-Healing Silicone Materials: Looking Back and Moving Forward

“…The inclusion of lanthanides and other luminescent ions, as well as conjugated and flat aromatic fragments, into the structure of SHSMs can give them an additional property of photoluminescence, which contributes to the expansion of potential applications of such materials, and their use in optoelectronics as flexible SH screens, fluorescent mosaics, lighting design, etc. [ 18 ].…”

“…They can be applied to create SH coatings, highly stretchable strain sensors, electronic skins, actuators and artificial muscles, which are highly desirable for innovations in soft robotics, medicine, 3D printing, optoelectronics, etc. [ 7 , 11 , 13 , 14 , 15 , 16 , 17 , 18 ].…”

“…One of the most promising matrices among other elastomers [ 3 ] and hydrogels [ 21 ] to create SH materials is polydimethylsiloxane (PDMS) and its derivatives [ 3 , 6 , 18 ]. PDMSs exhibit high flexibility, stretchability, bioinertness, hydrophobicity, high chain mobility, high thermal stability, frost resistance, and a low glass transition temperature (−123 °C) [ 22 , 23 , 24 ].…”

“…There are a number of reviews on PDMSs [ 18 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ] and self-healing silicone materials (SHSMs) [ 3 , 6 , 18 ] in which SH mechanisms are preferably described. However, over the past five years, there was a revolutionary step in the development of functional SHSMs aimed at expanding practical areas of their application.…”

Self-Healing Redox-Active Coatings Based on Ferrocenyl-Containing Polysiloxanes

“…Among the most promising polymers for the production of protective coatings are silicones (polysiloxanes), since they exhibit high flexibility, stretchability, bioinertness, hydrophobicity, high thermal and frost resistance, high gas permeability, and stability to UV and ozone [6][7][8]. The silicones also possess one of the lowest glass transition temperatures (−123 • C) as distinguished from other polymers [6][7][8][9][10], making them potential for applications at very low temperatures and extreme weather conditions. The silicone materials have good adhesion to a wide range of substrates while maintaining substantial weather and biofouling resistance.…”