Alopecia is considered an aesthetic, psychological, and social issue among modern people. Although laser-induced skin stimulation is utilized for depilation treatment, such treatment has significant drawbacks of high energy consumption, huge equipment size, and limited usage in daily life. Here, we present a wearable photostimulator for hair-growth applications using high-performance flexible red vertical light-emitting diodes (f-VLEDs). Flexible microscale LEDs were effectively fabricated by a simple monolithic fabrication process, resulting in high light output (∼30 mW mm-2), low forward voltage (∼2.8 V), and excellent flexibility for wearable biostimulation. Finally, trichogenic stimulation of a hairless mouse was achieved using high-performance red f-VLEDs with high thermal stability, device uniformity, and mechanical durability.
Bibliographical noteFunding Information:
This work was financially supported by Creative Materials Discovery Program (NRF-2016M3D1A1900035) and Global Frontier R&D Program of the Center for Integrated Smart Sensors (CISS-2016M3A6A6929958) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning. This work was supported by National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT, and Future Planning (Grant No. NRF-2014R1A2A1A12067558 and 2012-0008779).
© 2018 American Chemical Society.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Physics and Astronomy(all)