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Energy Migration Engineering of Bright Rare‐Earth Upconversion Nanoparticles for Excitation by Light‐Emitting Diodes
Author(s) -
Zhong Yeteng,
Rostami Iman,
Wang Zihua,
Dai Hongjie,
Hu Zhiyuan
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201502272
Subject(s) - photon upconversion , materials science , optoelectronics , excited state , diode , light emitting diode , excitation , infrared , luminescence , nanoparticle , rare earth , nanotechnology , optics , atomic physics , electrical engineering , physics , metallurgy , engineering
A novel Nd 3+ ‐sensitized upconversion nanoparticle (UCNP) that can be excited by near‐infrared 740 nm light‐emitting diode (LED) lamps with bright upconversion luminescence is designed. Yb 3+ ion distribution is engineered to increase the energy migration efficiency. The benefit of the novel LED‐excited UCNPs is demonstrated by imaging of breast cancer cells and enabling an economic handheld semiquantitative visual measurement device.