Trichogenic Photostimulation Using Monolithic Flexible Vertical AlGaInP Light-Emitting Diodes

Han Eol Lee, Seung Hyun Lee, Minju Jeong, Jung Ho Shin, Yuri Ahn, Daesoo Kim, Sang Ho Oh, Seok Hyun Yun, Keon Jae Lee

Research output: Contribution to journalArticle

26 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)9587-9595
Number of pages9
JournalACS Nano
Volume12
Issue number9
DOIs
Publication statusPublished - 2018 Sep 25

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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  • Cite this

    Lee, H. E., Lee, S. H., Jeong, M., Shin, J. H., Ahn, Y., Kim, D., Oh, S. H., Yun, S. H., & Lee, K. J. (2018). Trichogenic Photostimulation Using Monolithic Flexible Vertical AlGaInP Light-Emitting Diodes. ACS Nano, 12(9), 9587-9595. https://doi.org/10.1021/acsnano.8b05568