More Like this

1. Luminescence of nanocrystalline BaFCl codoped with Eu^2+/3+ and Tb³⁺

   https://doi.org/10.1039/D4DT02237H  

   Manamperi, Nishani T; Sivirathne, Sachini W; Erlenbeck, Alyssa M; Perera, S Samarage; Rabuffetti, Federico A (October 2024, Dalton Transactions)

   BaFCl nanocrystals coactivated by Eu²⁺, Eu³⁺, and Tb³⁺were synthesizedviahot-injection and their luminescence response characterized between 80 and 430 K. 

   more » « less
2. Gd ³⁺ -activated narrowband ultraviolet-B persistent luminescence through persistent energy transfer

   https://doi.org/10.1039/D1DT00120E  

   Wang, Xianli; Chen, Yafei; Kner, Peter A.; Pan, Zhengwei (March 2021, Dalton Transactions)

   null (Ed.)

   This work reports the realization of Gd 3+ persistent luminescence in the narrowband ultraviolet-B (NB-UVB; 310–313 nm) through persistent energy transfer from a sensitizer of Pr 3+ , Pb 2+ or Bi 3+ . We propose a general design concept to develop Gd 3+ -activated NB-UVB persistent phosphors from Pr 3+ -, Pb 2+ - or Bi 3+ -activated ultraviolet-C (200–280 nm) or ultraviolet-B (280–315 nm) persistent phosphors, leading to the discovery of ten Gd 3+ NB-UVB persistent phosphors such as Sr 3 Gd 2 Si 6 O 18 :Pr 3+ , Sr 3 Gd 2 Si 6 O 18 :Pb 2+ and Y 2 GdAl 2 Ga 3 O 12 :Bi 3+ as well as five ultraviolet-B persistent phosphors such as Y 3 Al 2 Ga 3 O 12 :Pr 3+ , Sr 3 Y 2 Si 6 O 18 :Pb 2+ and Y 3 Al 2 Ga 3 O 12 :Bi 3+ . The persistent energy transfer from the sensitizers to Gd 3+ is very efficient and the Gd 3+ NB-UVB afterglow can last for more than 10 hours. This study expands the persistent luminescence research to the NB-UVB as well as the broader ultraviolet-B spectral regions. The NB-UVB persistent phosphors may act as self-sustained glowing NB-UVB radiation sources for dermatological therapy. 

   more » « less
3. Photocytotoxicity of Oligothienyl‐Functionalized Chelates That Sensitize Ln ^III Luminescence and Generate ¹ O ₂

   https://doi.org/10.1002/chem.202001568  

   Johnson, Katherine R.; Lombardi, Vincent C.; Bettencourt‐Dias, Ana (September 2020, Chemistry – A European Journal)
4. Exceptional TcO ₄ ⁻ sorption capacity and highly efficient ReO ₄ ⁻ luminescence sensing by Zr ⁴⁺ MOFs

   https://doi.org/10.1039/c8ta07901c  

   Rapti, Sofia; Diamantis, Stavros A.; Dafnomili, Argyro; Pournara, Anastasia; Skliri, Euaggelia; Armatas, Gerasimos S.; Tsipis, Athanassios C.; Spanopoulos, Ioannis; Malliakas, Christos D.; Kanatzidis, Mercouri G.; et al (October 2018, Journal of Materials Chemistry A)

   The sorption properties of [Zr 6 O 4 (OH) 4 (NH 3 + -BDC) 6 ]Cl 6 · x H 2 O ( MOR-1 ) and H 16 [Zr 6 O 16 (H 2 PATP) 4 ]Cl 8 · x H 2 O ( MOR-2 ) towards ReO 4 − and TcO 4 − were studied in detail. Both MOR-1 and MOR-2 are very effective sorbents for ReO 4 − and TcO 4 − anions, with MOR-2 showing the highest sorption capacity (up to 4.1 ± 0.4 mmol g −1 ) among the known metal organic materials. Importantly, the exceptional sorption capacity of MOR-2 is retained even under conditions simulating acidic nuclear waste. In addition, MOR-1 and MOR-2 exhibit selective luminescence ReO 4 − sensing properties, demonstrated for the first time for MOF materials. 

   more » « less
5. A Unique Ln ^III {[3.3.1]Ga ^III Metallacryptate} Series That Possesses Properties of Slow Magnetic Relaxation and Visible/Near-Infrared Luminescence

   https://doi.org/10.1002/chem.201801355  

   Lutter, Jacob C.; Eliseeva, Svetlana V.; Kampf, Jeff W.; Petoud, Stéphane; Pecoraro, Vincent L. (June 2018, Chemistry - A European Journal)