Transfer printing based manufacturing process for flexible micro-light emitting diode phototherapy devices

Abstract

Micro-light emitting diode (LED) integrated phototherapy devices are part of a rapidly growing industry benefiting from distinct photoelectrical properties. The recent advances in inorganic flexible devices have increased the scope of micro-LED applications in the biomedical field. While there are several promising uses of micro-LED integrated flexible devices, accommodating minuscule light sources with extreme precision on a large scale for mass production is an enormous challenge from the manufacturing perspective. The transfer printing-based heterogeneous manufacturing process, recent advances in the distinct modes of manipulators, and electrical and physical bonding schemes are reviewed herein for a better understanding of the flexible optoelectronic micromanufacturing processes in line with device applications in biomedical fields.

Energy Conversion and Transfer in the Luminescence of CeSc3(BO3)4:Cr3+ Phosphor

“…To support the sustainable and healthy development of the huge LED industry, which ranges from substrate epitaxy, LED chip fabrication, and LED package to end-use applications, it is urgent to open up new fields of application [1,2]. For this aspect, the red and near-infrared LEDs show a bright future for applications in infrared photography, imaging, photomedicine, biomedicine, sensors, detectors, photosynthetic agriculture, and as a backlight for testing instruments [3][4][5][6][7].…”