Light-material interfaces for self-powered optoelectronics
Jung Ho Shin,Young-bin Kim,Jung-Hwan Park,Jin Soo Lee,Sang Hyun Park,Seung Hyung Lee,Jae Hee Lee,Keon Jae Lee +7 more
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TL;DR: In this article, the authors introduce light-material interface (LMI) technologies including nanowelding, laser lift-off, physical interlocking, and interfacial chemistry that can overcome the inherent thermal limit to realize inorganic-based self-powered wearable optoelectronic devices.
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Abstract: Self-powered wearable optoelectronics are considered as a promising candidate for realizing sustainable and mobile visual communication. Inorganic materials have been utilized to develop various self-powered optoelectronic devices such as piezoelectric nanogenerators, photodetectors, and light-emitting diodes (LEDs). However, inevitable high temperature processes including thermal evaporation, annealing, and epitaxial growth cause serious thermal damage to plastic substrates, hindering the demonstration of a high performance self-powered flexible optoelectronic system. In this paper, we introduce light-material interface (LMI) technologies including nanowelding, laser lift-off, physical interlocking, and interfacial chemistry that can overcome the inherent thermal limit to realize inorganic-based self-powered wearable optoelectronic devices. The working mechanism of these innovative approaches is discussed according to theoretical simulations and scientific findings in previous research. Lastly, LMI-based self-powered flexible optoelectronic components including piezoelectric nanogenerators, thermoelectric energy harvesters, and μLEDs are discussed.
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