Incorporating Rare-Earth Terbium(III) Ions into Cs2AgInCl6:Bi Nanocrystals toward Tunable Photoluminescence | Научно-инновационный портал СФУ

Incorporating Rare-Earth Terbium(III) Ions into Cs2AgInCl6:Bi Nanocrystals toward Tunable Photoluminescence

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1002/ange.202004562

Ключевые слова: doping, energy transfer, perovskite nanocrystals, photoluminescence, terbium

Аннотация: The incorporation of impurity ions or doping is a promising method for controlling the electronic and optical properties and the structural stability of halide perovskite nanocrystals (NCs). Herein, we establish relationships between rare-earth ions doping and intrinsic emission of lead-free double perovskite Cs2AgInCl6NCs to impart and tune the optical performances in the visible light region. Tb(3+)ions were incorporated into Cs2AgInCl6NCs and occupied In(3+)sites as verified by both crystallographic analyses and first-principles calculations. Trace amounts of Bi doping endowed the characteristic emission (D-5(4)-> F-7(6-3)) of Tb(3+)ions with a new excitation peak at 368 nm rather than the single characteristic excitation at 290 nm of Tb3+. By controlling Tb(3+)ions concentration, the emission colors of Bi-doped Cs2Ag(In1-xTbx)Cl6NCs could be continuously tuned from green to orange, through the efficient energy-transfer channel from self-trapped excitons to Tb(3+)ions. Our study provides the salient features of the material design of lead-free perovskite NCs and to expand their luminescence applications.

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Издание

Журнал: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Выпуск журнала: Vol. 59, Is. 28

Номера страниц: 11634-11640

ISSN журнала: 14337851

Место издания: WEINHEIM

Издатель: WILEY-V C H VERLAG GMBH

Авторы

  • Liu Ying (Univ Sci, Sch Materials Sciences, Beijing Municipal Key Lab New Energy Materials, Technology Beijing,Technologies,Engn, Beijing, P. R. China)
  • Rong Ximing (Shenzhen Univ, Coll Materials Sci, Guangdong Res Ctr Interfacial Engn Functional Mat, Shenzhen Key Lab Special Functional Materials, Shenzhen, P. R. China)
  • Li Mingze (Univ Sci, Sch Materials Sciences, Beijing Municipal Key Lab New Energy Materials, Technology Beijing,Technologies,Engn, Beijing, P. R. China)
  • Molokeev Maxim S. (Kirensky Inst Phys, Fed Res Ctr KSC SB RASs, Lab Crystal Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Dept Engn Phys, Radioelectronics, Krasnoyarsk 660041, Russia; Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia)
  • Zhao Jing (Univ Sci, Sch Materials Sciences, Beijing Municipal Key Lab New Energy Materials, Technology Beijing,Technologies,Engn, Beijing, P. R. China)
  • Xia Zhiguo (Univ Sci, Sch Materials Sciences, Beijing Municipal Key Lab New Energy Materials, Technology Beijing,Technologies,Engn, Beijing, P. R. China; S China Univ Technology, Sch Materials Sci, State Key Lab Luminescent Materials, Guangdong Prov Key Lab Fiber Laser Materials, Guangzhou, P. R. China)

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