Antimicrobial properties of nanofiltration membranes modified with silver nanoparticles

Renat Khaydarov, Olga Gapurova, Murodjon Abdukhakimov, Ilkham Sadikov, Ilnur Garipov, Praveen Thaggikuppe Krishnamurthy, Sergey M. Zharkov, Galina M. Zeer, Polina A. Abolentseva, Svetlana V. Prudnikova & Svetlana Y. Evgrafova // JOURNAL OF PHYSICAL CHEMISTRY LETTERS//

DOI: 10.1021/acs.jpclett.1c03767

Luminescent organometallic halide crystals, especially with single-component white emission, are urgently needed for light-emitting diode (LED) applications. Barriers for the applications, however, lie in their lead toxicity, poor stability, and low photoluminescence quantum yield (PLQY). Here, a one-dimensional Cu(I)-based hybrid metal halide (C12H24O6)CsCu2Br3 is designed and prepared via a simple solution method. Upon 365 nm excitation, a broad-band white light emission centered at 535 nm with a full width at half maximum of 186 nm and a PLQY of 78.3% is monitored. The experimental results together with calculation data indicate that the existence of the split peaks at 486 and 570 nm at a low temperature is attributed to the decrease of energy level degeneracy by virtue of the lattice distortion. Moreover, the stability along with the good device performance of the as-fabricated white LED was also discussed. The results demonstrate that (C12H24O6)CsCu2Br3 is highly competitive in lighting application, and it can further enable breakthrough material design for new luminescent organometallic halides