Persistent luminescence of inorganic nanophosphors prepared by wet-chemical synthesis

Bonturim, Everton; Merízio, Leonnam Gotardo; Reis, Roberto dos; Brito, Hermi F.; Rodrigues, Lucas Carvalho Veloso; Felinto, Maria Claudia França da Cunha

doi:10.1016/j.jallcom.2017.10.219

Cited by 28 publications

(6 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a result, the endured long reaction time and high annealing temperature of the synthesis make the phosphors bulky and irregular, which limit the usage in biomedical fields [34]. Therefore, new size-and shape-controllable synthetic methods have been developed to prepare nanosized PLNPs, such as sol-gel methods, template methods, hydrothermal/solvothermal methods and other wet-chemical synthesis methods [48][49][50][51][52][53][54][55][56][57]. In this section, we will discuss these typical synthetic approaches for PLNPs.…”

Section: Typical Synthetic Procedures For Plnpsmentioning

confidence: 99%

Recent Advances of Persistent Luminescence Nanoparticles in Bioapplications

Ding

et al. 2020

Nano-Micro Lett.

140

View full text Add to dashboard Cite

Persistent luminescence phosphors are a novel group of promising luminescent materials with afterglow properties after the stoppage of excitation. In the past decade, persistent luminescence nanoparticles (PLNPs) with intriguing optical properties have attracted a wide range of attention in various areas. Especially in recent years, the development and applications in biomedical fields have been widely explored. Owing to the efficient elimination of the autofluorescence interferences from biotissues and the ultra-long near-infrared afterglow emission, many researches have focused on the manipulation of PLNPs in biosensing, cell tracking, bioimaging and cancer therapy. These achievements stimulated the growing interest in designing new types of PLNPs with desired superior characteristics and multiple functions. In this review, we summarize the works on synthesis methods, bioapplications, biomembrane modification and biosafety of PLNPs and highlight the recent advances in biosensing, imaging and imaging-guided therapy. We further discuss the new types of PLNPs as a newly emerged class of functional biomaterials for multiple applications. Finally, the remaining problems and challenges are discussed with suggestions and prospects for potential future directions in the biomedical applications.

show abstract

Section: Typical Synthetic Procedures For Plnpsmentioning

confidence: 99%

Recent Advances of Persistent Luminescence Nanoparticles in Bioapplications

Ding

et al. 2020

Nano-Micro Lett.

140

View full text Add to dashboard Cite

show abstract

“…Due to the need of controlling and optimizing two different outputs, the optical properties (i.e., high quality on excitation/emission spectra with a bright and long-lasting afterglow emission), and the particle size control (i.e., narrow size distribution and controlled morphology), synthesis of PeL materials are more challenging when compared to larger sized nanoparticles. Factors such as optimization of (co-)dopants percentage on host, annealing temperature range, heating exposure time, phase purity, amount of intrinsic defects are some of the ones to be considered [190][191][192][193][194].…”

Section: Synthesis Of Pel Nanomaterialsmentioning

confidence: 99%

Opportunities for Persistent Luminescent Nanoparticles in Luminescence Imaging of Biological Systems and Photodynamic Therapy

et al. 2020

View full text Add to dashboard Cite

The use of luminescence in biological systems allows us to diagnose diseases and understand cellular processes. Persistent luminescent materials have emerged as an attractive system for application in luminescence imaging of biological systems; the afterglow emission grants background-free luminescence imaging, there is no need for continuous excitation to avoid tissue and cell damage due to the continuous light exposure, and they also circumvent the depth penetration issue caused by excitation in the UV-Vis. This review aims to provide a background in luminescence imaging of biological systems, persistent luminescence, and synthetic methods for obtaining persistent luminescent materials, and discuss selected examples of recent literature on the applications of persistent luminescent materials in luminescence imaging of biological systems and photodynamic therapy. Finally, the challenges and future directions, pointing to the development of compounds capable of executing multiple functions and light in regions where tissues and cells have low absorption, will be discussed.

show abstract

“…With the advancement of nanotechnology, luminescent materials on a nanometre‐sized scale, called nanophosphors, have drawn great interest worldwide due to their unique structural, optical, and electronic properties compared with their bulk counterparts. [ 1–7 ] Zinc oxide (ZnO) nanomaterial is a potential candidate for highly luminescent nanophosphors and other optoelectronic applications. [ 8,9 ] It is a wide bandgap II–VI compound semiconductor with a direct energy bandgap of ~3.37 eV at 300 K. At normal temperatures and pressures, ZnO exists in the hexagonal wurtzite crystalline phase due to its stability.…”

Section: Introductionmentioning

confidence: 99%

Effect of (Ce, Dy) co‐doping on the microstructural, optical, and photoluminescence characteristics of solution combustion synthesized ZnO nanoparticles

Sharma

Sahay

2023

Luminescence

View full text Add to dashboard Cite

Solution combustion synthesized ZnO nanoparticles that were Ce doped, Dy doped or co-doped at varying dopant concentrations were characterized for their microstructural, optical, and photoluminescence (PL) characteristics. The synthesized nanoparticles matched the standard hexagonal wurtzite structure of ZnO. The lattice fringes in the high-resolution transmission electron micrographs and the bright spotty rings in the selected area electron diffraction patterns authenticated the high crystallinity of the nanoparticles. The diffuse reflectance spectroscopy resolved the energy bandgap for the undoped ZnO as 3.18 eV, which decreased upon doping and co-doping. A sharp narrow ultraviolet emission peak at $398 nm that originated from excitonic recombination was found in the PL spectra of the nanoparticles. The visible emission peaks in the PL spectra were assigned to the f-d and f-f electron transitions of Ce 3+ and Dy 3+ ions, respectively, in addition to different native defects in ZnO.The visible emissions (blue, yellow, and red) improved upon (Ce, Dy) co-doping, therefore (Ce, Dy) co-doped ZnO nanoparticles can be considered a promising luminescent material for the development of energy-saving light sources.

show abstract

Persistent luminescence of inorganic nanophosphors prepared by wet-chemical synthesis

Cited by 28 publications

References 56 publications

Recent Advances of Persistent Luminescence Nanoparticles in Bioapplications

Recent Advances of Persistent Luminescence Nanoparticles in Bioapplications

Opportunities for Persistent Luminescent Nanoparticles in Luminescence Imaging of Biological Systems and Photodynamic Therapy

Effect of (Ce, Dy) co‐doping on the microstructural, optical, and photoluminescence characteristics of solution combustion synthesized ZnO nanoparticles

Contact Info

Product

Resources

About