Nd3+-sensitized NaLuF4 luminescent nanoparticles for multimodal imaging and temperature sensing under 808 nm excitation. Issue 42 (13th October 2015)

• Record Type: Journal Article
• Authors: Wang, Zhuo; Zhang, Peng; Yuan, Qinghai; Xu, Xia; Lei, Pengpeng; Liu, Xiuling; Su, Yue; Dong, Lile; Feng, Jing; Zhang, Hongjie
• Is Part Of: Nanoscale. Volume 7:Issue 42(2015)
• Page Start: 17861
• Page End: 17870
• Publication Date: 2015-10-13
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c5nr04889c
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Multimodal imaging and temperature sensing under 808 nm excitation were successfully achieved in Nd 3+ -sensitized NaLuF4 luminescent nanoparticles. Abstract : In this paper, intense up- and down-conversion luminescence were successfully achieved in well designed and synthesized core–shell structured NaLuF4 :Gd/Yb/Er@NaLuF4 :Yb@NaLuF4 :Nd/Yb@NaLuF4 nanoparticles (NPs) simultaneously under 808 nm continuous-wave laser excitation. The morphologies, luminescent properties and energy transfer mechanism of the nanoparticles were studied in detail. By employing this design, multimodal imaging performance including near-infrared down-conversion optical imaging and X-ray computed tomography (CT) imaging were realized in one kind of NPs. Furthermore, the 808 nm excited optical temperature sensing property of the synthesized NPs was realized in a wide temperature range by monitoring the intensities of up- and down-conversion luminescence. This study provides a novel platform based on lanthanide fluoride nanoparticles for multifunctional imaging and temperature sensing in one system.