Ligand-free template-assisted synthesis of stable perovskite nanocrystals with near-unity photoluminescence quantum yield within the pores of vaterite spheres.

Autor: Peltek OO; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Talianov PM; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Krylova A; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Polushkin AS; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Anastasova EI; International Institute 'Solution Chemistry of Advanced Materials and Technologies', ITMO University, St. Petersburg, 197101, Russian Federation., Mikushina DD; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Gets D; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Zelenkov LE; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Khubezhov S; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Pushkarev A; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Zyuzin MV; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru., Makarov SV; School of Physics and Engineering, ITMO University, Lomonosova 9, St. Petersburg 191002, Russian Federation. mikhail.zyuzin@metalab.ifmo.ru.; Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, Shandong, China.
Jazyk: angličtina
Zdroj: Nanoscale [Nanoscale] 2023 Apr 27; Vol. 15 (16), pp. 7482-7492. Date of Electronic Publication: 2023 Apr 27.
DOI: 10.1039/d3nr00214d
Abstrakt: Ligand-free methods for the synthesis of halide perovskite nanocrystals are of great interest because of their excellent performance in optoelectronics and photonics. In addition, template-assisted synthesis methods have become a powerful tool for the fabrication of environmentally stable and bright nanocrystals. Here we develop a novel approach for the facile ligand-free template-assisted fabrication of perovskite nanocrystals with a near-unity absolute quantum yield, which involves CaCO 3 vaterite micro- and submicrospheres as templates. We show that the optical properties of the obtained nanocrystals are affected not mainly by the template morphology, but strongly depend on the concentration of precursor solutions, anion and cation ratio, as well as on adding defect-passivating rare-earth dopants. The optimized samples are further tested as infrared radiation visualizers exhibiting promising characteristics comparable to those that are commercially available.
Databáze: MEDLINE
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