Producing long afterglow by cellulose confinement effect: A wood-inspired design for sustainable phosphorescent materials

Wang, Ping; Zheng, Dongxiao; Liu, Shouxin; Luo, Mengkai; Li, Jian; Shen, Shen; Li, Shujun; Zhu, Liangliang; Chen, Zhijun

doi:10.1016/j.carbon.2020.09.060

Cited by 58 publications

(53 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[ 51 ] This light energy is stored in energy traps constituent (Eu 2+ and Dy 3+ ) of the pigment, which are characterized with high capability to store light for an extended time period. There are a variety of long‐persistent luminescent pigments with diverse colors, such as SrAl 2 O 4 :Eu 2+ ,Dy 3+ [ 52 ] or MgAl 2 O 4 :Mn 2+ [ 53 ] emitting green, CaAl 2 O 4 :Eu 2+ ,Nd 3+ [ 54 ] or SrMgSi 2 O 6 :Eu 2+ ,Dy 3+ [ 55 ] emitting blue, and CaS:Eu 2+ ,Tm 3+ ,Ce 3+ [ 56 ] or Y 2 O 2 S:Mg 2+ ,Ti 4+ [ 57 ] emitting a reddish color. The long‐persistent luminescent pigments are non‐radioactive, non‐toxic, recyclable and highly resistant to heat, solvents and chemicals.…”

Section: Introductionmentioning

confidence: 99%

Production of photochromic nanocomposite film via spray‐coating of rare‐earth strontium aluminate for anti‐counterfeit applications

et al. 2021

View full text Add to dashboard Cite

New photochromic film was developed toward the preparation of anti‐counterfeiting documents utilizing inorganic/organic nanocomposite enclosing a photoluminescent inorganic pigment and a polyacrylic binder polymer. To generate a translucent film from pigment/polyacrylic nanocomposite, the phosphorescent strontium aluminum oxide pigment should be well‐dispersed in the solution of the polyacrylic‐based binder without agglomeration. The photochromic nanocomposite was applied efficiently onto commercial cellulose paper documents utilizing the effective and economical spray‐coating technology followed with thermofixation. A homogeneous photochromic film was immobilized onto cellulose paper surface to introduce a transparent film changing to greenish‐yellow upon exposure to ultraviolet light as depicted by CIE coloration measurements. The photochromic effect was monitored at lowest pigment concentration (0.25 wt%). The spray‐coated paper documents exhibit two absorbance bands at 256 and 358 nm, and two fluorescence peaks at 433 and 511 nm. The morphologies of the spray‐coated documents were explored. The spray‐coated paper sheets showed a reversible photochromic effect without fatigue under ultraviolet irradiation. The rheology of the produced photochromic composites as well as the mechanical properties and photostability of the spray‐coated documents were studied.

show abstract

Section: Introductionmentioning

confidence: 99%

Production of photochromic nanocomposite film via spray‐coating of rare‐earth strontium aluminate for anti‐counterfeit applications

et al. 2021

View full text Add to dashboard Cite

show abstract

“…It additionally addresses the necessity to develop photopolymerization systems comprising more sustainable components. CDs have received form this point of view remarkable interest as light sensitive material [3,21,27,[32][33][34][35][36] . Photosensitizers needed for photopolymerization mostly base on petrochemicals [2] while only a few systems derive from natural resources [3,[37][38] .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distinct Sustainable Carbon Nanodots Enable Free Radical Photopolymerization, Photo‐ATRP and Photo‐CuAAC Chemistry

Kütahya

Zhai

et al. 2021

Angew Chem Int Ed

Self Cite

View full text Add to dashboard Cite

show abstract

“…In 1996, Matsuzawa found that by doping rare-earth ions, europium (Eu) and dysprosium (Dy), into strontium aluminate (SrAl 2 O 4 ), an inorganic afterglow material with a good emission for 10 h could be obtained [7]. Subsequently, this inorganic afterglow material has been widely used in various luminescence fields, such as lighting, anti-counterfeiting, and biological imaging [8][9][10]. DC Sheppeck et al achieved continuous lighting for minutes or even hours after the lamp was turned off by adding afterglow luminescent powder to electroluminescent lamps [10].…”

Section: Introductionmentioning

confidence: 99%

Ultralong-Lived Up-Conversional Room-Temperature Afterglow Materials with a Polyvinyl Alcohol Substrate

Zhou

Shi

et al. 2022

Polymers

Self Cite

View full text Add to dashboard Cite

Room-temperature afterglow (RTA) materials have a wide range of applications in imaging, lighting, and therapy, due to their long lifetime and persistent luminescence after the light source is removed. Additionally, near-infrared light with low energy and a high penetration rate ensures its irreplaceable importance in imaging and therapy. Thus, it is vital to design RTA materials excited by NIR. In the present study, we select up-conversion nanoparticles (UCNPs) as the donor and add them into hybrids, obtained by dispersing coronene tetra-carboxylate salt (CS) into a polyvinyl alcohol (PVA)-substrate through a series of mixing methods. Through radiation energy transfer between the donor UCNPs and the acceptor CS, a kind of RTA film with a photoluminescence lifetime of more than 2 s under NIR excitation was successfully achieved, and these films could maintain persistent naked-eye-distinguishable luminescence after withdrawing the excitation light source. Furthermore, the films obtained from UCNP doping into CS/PVA hybrids were found to exhibit better RTA performance than those from smearing. This idea of up-conversion afterglow broadens the tuning and application scope for polymer-based luminescent materials.

show abstract

Producing long afterglow by cellulose confinement effect: A wood-inspired design for sustainable phosphorescent materials

Cited by 58 publications

References 70 publications

Production of photochromic nanocomposite film via spray‐coating of rare‐earth strontium aluminate for anti‐counterfeit applications

Production of photochromic nanocomposite film via spray‐coating of rare‐earth strontium aluminate for anti‐counterfeit applications

Distinct Sustainable Carbon Nanodots Enable Free Radical Photopolymerization, Photo‐ATRP and Photo‐CuAAC Chemistry

Ultralong-Lived Up-Conversional Room-Temperature Afterglow Materials with a Polyvinyl Alcohol Substrate

Contact Info

Product

Resources

About