Wearable Electronics Based on Stretchable Organic Semiconductors

Abstract

Wearable electronics are attracting increasing interest due to the emerging Internet of Things (IoT). Compared to their inorganic counterparts, stretchable organic semiconductors (SOSs) are promising candidates for wearable electronics due to their excellent properties, including light weight, stretchability, dissolubility, compatibility with flexible substrates, easy tuning of electrical properties, low cost, and low temperature solution processability for large‐area printing. Considerable efforts have been dedicated to the fabrication of SOS‐based wearable electronics and their potential applications in various areas, including chemical sensors, organic light emitting diodes (OLEDs), organic photodiodes (OPDs), and organic photovoltaics (OPVs), have been demonstrated. In this review, some recent advances of SOS‐based wearable electronics based on the classification by device functionality and potential applications are presented. In addition, a conclusion and potential challenges for further development of SOS‐based wearable electronics are also discussed.

A Competitive n‐Type OECT Material via Copolymerization of Electron Deficient Building Blocks

“…[1] One of the key advantages of organic semiconductors is their flexibility, which allows for the development of lightweight devices that can conform to various shapes and sizes. [2,3] This as well as the mechanical similarity of organic semiconductors to biological tissue makes organic semiconductors appealing candidates at the juncture between biological and electronic in vivo applications. [4,5] One class of bioelectronic devices, which can only be operated with organic semiconductors as active layer materials, are organic electrochemical transistors (OECTs).…”

Organic photodetectors: materials, device, and challenges

“…93,94 Recent studies indicate a highly promising future for the incorporation of OPDs in the upcoming generation of flexible wearable electronic devices. 95,96 However, at the same time, they are still affected by the above materials and device structures, facing numerous challenges.…”

Advances in organic semiconductors for photocatalytic hydrogen evolution reaction

“…Organic semiconductors offer excellent structural tunability, which can be used to adjust their absorption spectra and photoelectric properties to enhance photocatalytic hydrogen production efficiency [3][4][5] . Moreover, organic semiconductors exhibit greater processability due to their inherent flexibility 6,7 . Inorganic semiconductors continue to be the most commonly used photocatalysts in the study of photocatalytic water splitting for hydrogen production 8,9 , owing to their advantages, such as higher photoelectric conversion efficiency and better stability 10,11 .…”

“…3–5 Moreover, organic semiconductors exhibit greater processability due to their inherent flexibility. 6,7 Inorganic semiconductors continue to be the most commonly used photocatalysts in the study of photocatalytic water splitting for hydrogen production, 8,9 owing to their advantages such as higher photoelectric conversion efficiency and better stability. 10,11 For instance, the external quantum efficiency of aluminum-doped SrTiO 3 at the ultraviolet wavelength (350–360 nm) is 96%.…”