Ultra-Wideband Multi-Dye-Sensitized Upconverting Nanoparticles for Information Security Application

Jongha Lee; Byeongjun Yoo; Hakyong Lee; Gi Doo Cha; Hee-Su Lee; Youngho Cho; Sang Yeon Kim; Hyunseon Seo; Woongchan Lee; Donghee Son; Myungjoo Kang; Hyung Min Kim; Yong Il Park; Taeghwan Hyeon; Dae-Hyeong Kim

doi:10.1002/adma.201603169

Ultra-Wideband Multi-Dye-Sensitized Upconverting Nanoparticles for Information Security Application

Adv Mater. 2017 Jan;29(1). doi: 10.1002/adma.201603169. Epub 2016 Oct 17.

Authors

Jongha Lee^{1

2}, Byeongjun Yoo^{1

2}, Hakyong Lee^{1

2}, Gi Doo Cha^{1

2}, Hee-Su Lee³, Youngho Cho³, Sang Yeon Kim⁴, Hyunseon Seo^{1

2}, Woongchan Lee^{1

2}, Donghee Son^{1

2}, Myungjoo Kang⁵, Hyung Min Kim³, Yong Il Park⁶, Taeghwan Hyeon^{1

2}, Dae-Hyeong Kim^{1

2}

Affiliations

¹ Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea.
² School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea.
³ Department of Bio & Nano Chemistry, Kookmin University, Seoul, 02707, Republic of Korea.
⁴ Interdisciplinary Program in Computational Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea.
⁵ Department of Mathematical Science, Seoul National University, Seoul, 08826, Republic of Korea.
⁶ School of Chemical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.

PMID: 27748544
DOI: 10.1002/adma.201603169

Abstract

Multi-dye-sensitized upconverting nanoparticles (UCNPs), which harvest photons of wide wavelength range (450-975 nm) are designed and synthesized. The UCNPs embedded in a photo-acid generating layer are integrated on destructible nonvolatile resistive memory device. Upon illumination of light, the system permanently erases stored data, achieving enhanced information security.

Keywords: information security; multi-photon; transient electronics; upconverting nanoparticles.