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Trichogenic Photostimulation Using Monolithic Flexible Vertical AlGaInP Light-Emitting Diodes

Authors
 Han Eol Lee  ;  Seung Hyun Lee  ;  Minju Jeong  ;  Jung Ho Shin  ;  Yuri Ahn  ;  Daesoo Kim  ;  Sang Ho Oh  ;  Seok Hyun Yun  ;  Keon Jae Lee 
Citation
 ACS NANO, Vol.12(9) : 9587-9595, 2018 
Journal Title
 ACS NANO 
ISSN
 1936-0851 
Issue Date
2018
Keywords
bioelectronics ; flexible vertical LED ; hair growth ; microLED ; phototherapy ; red LED
Abstract
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.
Full Text
https://pubs.acs.org/doi/10.1021/acsnano.8b05568
DOI
10.1021/acsnano.8b05568
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Dermatology (피부과학교실) > 1. Journal Papers
Yonsei Authors
Oh, Sang Ho(오상호) ORCID logo https://orcid.org/0000-0002-4477-1400
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163737
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