Er3+-to-Yb3+ and Pr3+-to-Yb3+ energy transfer for highly efficient near-infrared cryogenic optical temperature sensing

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 833-837 ◽  
Author(s):  
Anna M. Kaczmarek ◽  
Mariusz K. Kaczmarek ◽  
Rik Van Deun
Keyword(s):  
Energy Transfer ◽  
Temperature Regime ◽  
High Performance ◽  
Cryogenic Temperature ◽  
Near Infrared ◽  
Infrared Region ◽  
Temperature Sensing ◽  
Highly Efficient ◽  
Near Infrared Region ◽  
Very High

Nanothermometers based on Er3+-to-Yb3+ and Pr3+-to-Yb3+ energy transfer show very high performance in the near-infrared region in the cryogenic temperature regime.

Highly efficient near IR photosensitizers based-on Ir–C bonded porphyrin-aza-BODIPY conjugates

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72115-72120 ◽  
Author(s):  
Jinfeng Zhou ◽  
Lizhi Gai ◽  
Zhikuan Zhou ◽  
John Mack ◽  
Kejing Xu ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Near Infrared ◽  
Infrared Region ◽  
Quantum Yields ◽  
Highly Efficient ◽  
Near Ir ◽  
Near Infrared Region

Novel orthogonally arranged Ir(iii) porphyrin-aza-BODIPY conjugates exhibit strong absorbance in the near infrared region and have unusually high singlet oxygen quantum yields, since they act as unique molecules rather than as dyads.

A smart two-photon fluorescent platform based on desulfurization–cyclization: a phthalimide–rhodamine chemodosimeter for Hg2+ NIR emission at 746 nm and through-bond energy transfer

2017 ◽  
Vol 41 (22) ◽  
pp. 13495-13503 ◽  
Author(s):  
Shan-kun Yao ◽  
Ying Qian ◽  
Zheng-qing Qi ◽  
Chang-gui Lu ◽  
Yi-ping Cui
Keyword(s):  
Energy Transfer ◽  
Bond Energy ◽  
Near Infrared ◽  
Infrared Region ◽  
Two Photon ◽  
Nir Emission ◽  
Near Infrared Region ◽  
Fluorescent Chemodosimeter

In this work, a smart two-photon fluorescent platform based on desulfurization–cyclization was developed, in the construction of TBET-based fluorescent chemodosimeter CyRSN towards Hg2+ in near-infrared region at 746 nm.

scholarly journals NaYS2:Er3+ - a highly efficient NIR II response multi-photon up-conversion phosphor

2021 ◽  
Author(s):  
Xiumei Yin ◽  
Wen Xu ◽  
Ge Zhu ◽  
Yanan Ji ◽  
Qi Xiao ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excited State ◽  
Optical Communication ◽  
High Performance ◽  
Near Infrared ◽  
Excited State Absorption ◽  
Underwater Communication ◽  
Absorption Process ◽  
Highly Efficient ◽  
Application Prospects

Abstract The second near-infrared (NIR II) response photon up-conversion (UC) materials show great application prospects in the fields of biology and optical communication. However, it is still an enormous challenge to obtain efficient NIR II response materials. Herein, we developed a series of Er3+ doping ternary sulfides phosphors with highly efficient UC emissions under 1532 nm irradiation. Excitingly, β-NaYS2:Er3+ achieves a breakthrough visible UC efficiency as high as 6.13%, along with outstanding brightness, spectral stability of lights illumination and temperature. Such efficient UC dominates by excited state absorption process accompanied by the advantage of super long lifetimes of excited state levels of Er3+, instead of the well-recognized energy transfer UC between sensitizer and activator. NaYS2:Er3+ phosphors are further developed for high-performance underwater communication and a narrowband NIR photodetectors. Our findings breakthrough the traditional thinking of realizing efficient UC, and open up a novel frontier for developing NIR II response UC materials.

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