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One‐Pot Synthesis of Homogeneous EuF 3 Nanoplates: A Near‐Ultraviolet Light‐Induced Red‐Emitting Bifunctional Platform for in vitro Cell Imaging and Solid‐State Lighting
Author(s) -
Du Peng,
Liu Ying,
Kim YeonJu,
Yu Jae Su
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803982
Subject(s) - photoluminescence , bifunctional , materials science , ultraviolet , fluorescence , nanoparticle , light emitting diode , quenching (fluorescence) , diode , nanotechnology , optoelectronics , chemistry , optics , catalysis , organic chemistry , physics
We reported a new approach to prepare the homogenous EuF 3 nanoplates and discussed their potential applications. Upon 396 nm excitation, the EuF 3 nanoplates exhibited the visible emissions with high color purity of 84.7%. The monitored photoluminescence emission spectrum indicated that the Eu 3+ ions took the high symmetry positions in the host lattices which was further confirmed via the theoretical calculation based on the Judd‐Ofelt theory. The thermal quenching performance of the EuF 3 nanoplates was analyzed by the temperature‐dependent photoluminescence emission spectra and the activation energy was decided to be 0.28 eV. With the aid of the near‐ultraviolet chip and EuF 3 nanoplates, a red‐emitting light‐emitting diode device was prepared so as to identify the feasibility of the EuF 3 nanoplates for solid‐state lighting. Additionally, the cell viability of the EuF 3 nanoplates as well as their fluorescence imaging behaviors in the A549 lung cancer cells was also investigated. The observed results demonstrated that the EuF 3 nanoplates were bifunctional platform for in vitro cell imaging and solid‐state lighting.