Conjugate and non-conjugate controls of sensitizer to enhance dye-sensitized upconversion luminescence

Dye Sensitization ◽

Efficient Strategy ◽

Dye Sensitized ◽

Sensitization Effect

Although dye sensitization is an efficient strategy to improve upconversion luminescence of lanthanide-doped upconversion nanoparticles (UCNPs), the sensitization effect is limited due to the high probability of dyes aggregation. To...

Huge enhancement of upconversion luminescence by broadband dye sensitization of core/shell nanocrystals

Dalton Transactions ◽

10.1039/c6dt01187j ◽

2016 ◽

Vol 45 (34) ◽

pp. 13392-13398 ◽

Cited By ~ 19

Author(s):

Dongguang Yin ◽

Yumin Liu ◽

Jingxiu Tang ◽

Feifei Zhao ◽

Zhiwen Chen ◽

...

Keyword(s):

Core Shell ◽

Dye Sensitization ◽

Dye Sensitized

The UCL intensity of dye-sensitized UCNCs excited at 820 nm is 800-folds higher than that of pure UCNCs excited at 980 nm.

Heterodimerization at the dye sensitized TiO2 surface: an efficient strategy toward quick removal of water contaminants

Photochemical & Photobiological Sciences ◽

10.1039/c6pp00071a ◽

2016 ◽

Vol 15 (7) ◽

pp. 920-927 ◽

Cited By ~ 4

Author(s):

Zaki S. Seddigi ◽

Saleh A. Ahmed ◽

Samim Sardar ◽

Samir Kumar Pal

Keyword(s):

Solar Light ◽

Tio2 Surface ◽

Dye Sensitization ◽

Water Contaminants ◽

Efficient Strategy ◽

Dye Sensitized

Crucial dye sensitization of porous TiO2 MS for filtering pollutants through heterodimerization and their solar light mediated degradation via ROS are demonstrated.

Enhanced Tumor-Accumulation of Upconversion Nanoparticles for Upconversion Luminescence/Magnetic Resonance Dual-Mode Bioimaging of Colorectal Tumor Using a Tumor Affinity Peptide with PSP Motif

SSRN Electronic Journal ◽

10.2139/ssrn.3476417 ◽

2019 ◽

Author(s):

Xinxin Li ◽

Lin Liu ◽

Yu Fu ◽

Hongda Chen ◽

Hua Zhang ◽

...

Keyword(s):

Magnetic Resonance ◽

Colorectal Tumor ◽

Dual Mode ◽

Tumor Accumulation ◽

Affinity Peptide

Comparative studies of upconversion luminescence characteristics and cell bioimaging based on one-step synthesized upconversion nanoparticles capped with different functional groups

Journal of Luminescence ◽

10.1016/j.jlumin.2014.08.057 ◽

2015 ◽

Vol 157 ◽

pp. 172-178 ◽

Cited By ~ 28

Author(s):

Ming-Kiu Tsang ◽

Chi-Fai Chan ◽

Ka-Leung Wong ◽

Jianhua Hao

Keyword(s):

Functional Groups ◽

Comparative Studies ◽

One Step ◽

Luminescence Characteristics

Optical Temperature Sensing of Core-Shell Structured NaYF4:Yb3+, Er3+@NaYF4 Nanocrystals with Different Shell Thickness

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.738-739.27 ◽

2015 ◽

Vol 738-739 ◽

pp. 27-30

Author(s):

Dong Dong Li ◽

Qi Yue Shao ◽

Yan Dong ◽

Jian Qing Jiang

Keyword(s):

Shell Thickness ◽

Thermal Sensitivity ◽

Temperature Sensing ◽

Core Shell ◽

Sensing Properties ◽

The Core ◽

Β Phase ◽

Biomedical Fields

Hexagonal (β)-phase NaYF4:Yb3+, Er3+ upconversion nanoparticles (UCNPs) with and without an inert (undoped NaYF4) shell have been successfully synthesized and the effects of shell thickness on the upconversion luminescence (UCL) and temperature sensing properties were systematically investigated. It was found that the NaYF4 shell and its thickness do not affect the RHS values and thermal sensitivity, but can obviously improve the UCL intensity of NaYF4:Yb3+, Er3+ UCNPs. It implies that the core-shell structured NaYF4:Yb3+, Er3+@NaYF4 UCNPs with excellent UCL properties have great potential to be used as temperature sensing probes in biomedical fields, without considering the influences of the shell thickness on their temperature sensing properties.

Core–shell hybrid upconversion nanoparticles for upconversion luminescence and magnetic resonance dual-modality imaging

Nanomedicine Nanotechnology Biology and Medicine ◽

10.1016/j.nano.2015.12.137 ◽

2016 ◽

Vol 12 (2) ◽

pp. 494

Author(s):

Chuan Chen ◽

Ning Kang ◽

Lei Ren ◽

Xiangqun Guo

Keyword(s):

Magnetic Resonance ◽

Core Shell ◽

Dual Modality ◽

Dual Modality Imaging

Sensitization Effect of Yb3+ in Upconversion Luminescence of Eu3+Codoped Y2O3 Phosphor

Journal of Physical Chemistry & Biophysics ◽

10.4172/2161-0398.1000129 ◽

2013 ◽

Vol 03 (05) ◽

Cited By ~ 7

Author(s):

Anurag Pandey

Keyword(s):

Sensitization Effect

Simultaneous enhancement of upconversion luminescence and thermometric property of upconversion nanoparticles by tuning crystal field

Journal of Luminescence ◽

10.1016/j.jlumin.2019.03.030 ◽

2019 ◽

Vol 211 ◽

pp. 144-149 ◽

Cited By ~ 8

Author(s):

Lu Yao ◽

Yongjin Li ◽

Dekang Xu ◽

Hao Lin ◽

Yan Peng ◽

...

Keyword(s):

Crystal Field ◽

Upconversion Nanoparticles

Influence of Sensitizer Concentration on the Upconversion Luminescence of NaYF4: Yb3+, Er3+ Nanoparticles

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.510.609 ◽

2012 ◽

Vol 510 ◽

pp. 609-613 ◽

Cited By ~ 2

Author(s):

Jun Wei Zhao ◽

Dong Mei Shi ◽

Ying Gang Zhao ◽

Xiang Gui Kong

Keyword(s):

Room Temperature ◽

Doping Concentration ◽

Sodium Citrate ◽

Green Emission ◽

Cross Relaxation ◽

The Cross ◽

Hydrothermal Methods ◽

Sensitization Effect

A series of NaYF4: Yb3+, Er3+ nanoparticles with different doping concentration were successfully prepared by the combination of coprecipitation and hydrothermal methods using sodium citrate as chelator. Upconversion luminescence can be observed in all of the samples at room temperature. Fixed the Er3+ concentration with 1 mol% unchanged, the effect of the Yb3+ concentration on the upconversion luminescence of NaYF4: Yb3+, Er3+ samples were studied when the doped Yb3+ concentrations were 0 mol%, 1 mol%, 2 mol%, 5 mol%, 10 mol% and 20 mol%, respectively. As increasing the Yb3+ concentration, the total intensity of the upconversion luminescence of the samples is increasing while the ratio of red to green emission increases firstly and then decreases. The maximum ratio value is 22.1 when the Yb3+ concentration is 10 mol%. It is found that the cross relaxation and cooperative sensitization effect are the reasons for the phenomenon above.