scholarly journals Advances in engineering near-infrared luminescent materials

iScience ◽  
2021 ◽  
Vol 24 (3) ◽  
pp. 102156
Author(s):  
Christopher T. Jackson ◽  
Sanghwa Jeong ◽  
Gabriel F. Dorlhiac ◽  
Markita P. Landry
Keyword(s):  
Near Infrared ◽  
Luminescent Materials

Multi-Site Cr3+ Occupation Related Broadband NIR Luminescence in Cr3+-doped Li3Mg2NbO6

CrystEngComm ◽  
2021 ◽  
Author(s):  
Fen Xiao ◽  
Chengning Xie ◽  
Shikun Xie ◽  
Rongxi Yi ◽  
Huiling Yuan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Nir Spectroscopy ◽  
Luminescent Materials ◽  
Optical Source ◽  
Nir Emission ◽  
Nir Luminescence

Broadband near infrared (NIR) luminescent materials have attracted great attention recently for the advance smart optical source of NIR spectroscopy. In this work, a broadband NIR emission from 650 nm...

scholarly journals Promoting luminescence of Yb/Er codoped ferroelectric composite by polarization engineering for optoelectronic applications

Nanophotonics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 2215-2223 ◽  
Author(s):  
Er Pan ◽  
Gongxun Bai ◽  
Yutao Peng ◽  
Liang Chen ◽  
Shiqing Xu
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Electrical Resistance ◽  
Near Infrared ◽  
Optoelectronic Devices ◽  
Glass Ceramics ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Luminescent Materials ◽  
Crystal Structural

AbstractFerroelectric oxide nanocrystals, in combination with the robust coupling of an electric field with crystal structure symmetry, makes such systems agreeable to field-induced crystal structural transformation. The luminescent properties of rare earth ions are sensitive to the symmetry of the surrounding crystal field. The luminescence tuning of rare earth ions is an important assignment in the research of luminescent materials. However, the current conditional feasibility and reversibility in the exploration of luminescence modification remain major challenges. In this article, the luminescence modulation of rare earth ions has been developed in Yb3+/Er3+ codoped ferroelectrics glass ceramics containing Bi4Ti3O12 nanocrystals through an electric field. The inclusion of nanocrystals in the glass matrix greatly enhances the electrical resistance. Both upconversion and near-infrared emissions of rare earth ions are effectively enhanced more than twice via polarization engineering. The electric field regulates the photonic properties of rare earth ions with excellent reversibility and nonvolatility in ferroelectrics. The effective modification by electric field provides a new scheme for optical storage and optoelectronic devices.

scholarly journals Creation of near-infrared luminescent phosphors enabled by topotactic reduction of bismuth-activated red-emitting crystals

2016 ◽  
Vol 4 (40) ◽  
pp. 9489-9498 ◽  
Author(s):  
Bo-Mei Liu ◽  
Zi-Jun Yong ◽  
Yang Zhou ◽  
Dan-Dan Zhou ◽  
Li-Rong Zheng ◽  
...  
Keyword(s):  
Near Infrared ◽  
Luminescent Materials ◽  
Significant Attention

Bismuth-doped luminescent materials have gained significant attention in recent years owing to their huge potential for applications in telecommunications, biomedicine, and displays.

Making sense of Lanthanide Luminescence

2005 ◽  
Vol 88 (2) ◽  
pp. 101-131 ◽  
Author(s):  
Martinus H.V. Werts
Keyword(s):  
Lanthanide Complexes ◽  
Near Infrared ◽  
Spectroscopic Studies ◽  
Medical Diagnostics ◽  
Lanthanide Ions ◽  
Luminescent Materials ◽  
Making Sense ◽  
Trivalent Lanthanide ◽  
Recent Developments ◽  
History Of

The luminescence of trivalent lanthanide ions has found applications in lighting, lasers, optical telecommunications, medical diagnostics, and various other fields. This introductory review presents the basics of organic and inorganic luminescent materials containing lanthanide ions, their applications, and some recent developments. After a brief history of the discovery, purification and early spectroscopic studies of the lanthanides, the radiative and nonradiative transitions of the 4f electrons in lanthanide ions are discussed. Lanthanide-doped phosphors, glasses and crystals as well as luminescent lanthanide complexes with organic ligands receive attention with respect to their preparation and their applications. Finally, two recent developments in the field of luminescent materials are addressed: near-infrared luminescent lanthanide complexes and lanthanide-doped nanoparticles.

scholarly journals Advanced Photonic Thin Films for Solar Irradiation Tuneability Oriented to Greenhouse Applications

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2357
Author(s):  
M. Barragán Sánchez-Lanuza ◽  
Amador Menéndez-Velázquez ◽  
Antonio Peñas-Sanjuan ◽  
Francisco J. Navas-Martos ◽  
Isidoro Lillo-Bravo ◽  
...  
Keyword(s):  
Near Infrared ◽  
Red Light ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Solar Irradiation ◽  
World Population ◽  
Luminescent Materials ◽  
Vegetable Growth ◽  
The World ◽  
Chlorophyll Absorption

The world population is growing by 1 billion people every 10 years. There will come a time when there will be more people to feed but less land to grow food. Greenhouses can be the solution to this problem because they provide the highest production yield per m2 and also use less water, provide food safety, and offer high quality. Photosynthetic active radiation (PAR) favors vegetable growth with a specific blue and red light ratio. Thus, increasing the amount of red light improves chlorophyll absorption and photosynthetic efficiency. In this article, we present a hybrid system that combines luminescent materials and photonic crystals for better management of the light reaching the greenhouse. The luminescent dyes considered herein are combined ensuring a Förster resonance energy transfer (FRET) nonradiative mechanism to enhance the absorption range. The designed photonic crystal maximizes reflections in the Near-Infrared (NIR) range, and therefore, thermal losses are minimized. Thus, by converting harmful or ineffective radiation for plant growth to the PAR region, we aim to demonstrate growth-condition enhancement for the different vegetables that have been used as a model.

Luminous Properties of near Infrared Excited Upconversion Luminescent Materials Based on NaYF4

2020 ◽  
Vol 49 (7) ◽  
pp. 716001
Author(s):  
李冬冬 Dong-dong LI ◽  
杨添 Tian YANG ◽  
马昕宇 Xin-yu MA ◽  
韩冬冬 Dong-dong HAN ◽  
佘江波 Jiang-bo SHE
Keyword(s):  
Near Infrared ◽  
Luminescent Materials

Ytterbium metal polymers as precursors of luminescent materials emitting in the near infrared region

2020 ◽  
Vol 10 (12) ◽  
pp. 4983-4990
Author(s):  
N. B. Ivakha ◽  
I. O. Savchenko ◽  
O. S. Berezhnytska ◽  
N. V. Rusakova ◽  
O. K. Trunova
Keyword(s):  
Near Infrared ◽  
Infrared Region ◽  
Luminescent Materials ◽  
Near Infrared Region

Double perovskite Cs2AgInCl6:Cr3+: broadband and near-infrared luminescent materials

2019 ◽  
Vol 6 (12) ◽  
pp. 3621-3628 ◽  
Author(s):  
Fangyi Zhao ◽  
Zhen Song ◽  
Jing Zhao ◽  
Quanlin Liu
Keyword(s):  
Near Infrared ◽  
Double Perovskite ◽  
Infrared Emission ◽  
Luminescent Materials ◽  
Near Infrared Emission

A Cr3+-doped halide double perovskite Cs2AgInCl6:Cr3+ is first reported which exhibits a broad near-infrared emission ranging from 850 to 1350 nm centered at 1010 nm with a FWHM of 180 nm.

Energy Transfer Enhanced Broadband Near-Infrared Phosphors: Cr3+/Ni2+ Activated ZnGa2O4–Zn2SnO4 Solid Solutions for the Second NIR Window Imaging

2021 ◽  
Author(s):  
Cuiping Wang ◽  
Yuxi Zhang ◽  
Xing Han ◽  
Dingfang Hu ◽  
Diping He ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Optical Imaging ◽  
Solid Solutions ◽  
Near Infrared ◽  
Luminescent Materials ◽  
Excellent Performance ◽  
Co Doped

Near-infrared luminescent materials have attracted considerable interest because of the excellent performance in the field of optical imaging. Here, a series of Cr3+/Ni2+ co-doped near-infrared phosphors Zn1+ySnyGa2−2yO4 (ZSGO) were synthesized...

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