Multi-Site Cation Control of Ultra-Broadband Near-Infrared Phosphors for Application in Light-Emitting Diodes : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1021/acs.inorgchem.0c02055

Аннотация: Near-infrared (NIR) phosphors are fascinating materials that have numerous applications in diverse fields. In this study, a series of La3Ga5GeO14:Cr3+ phosphors, which was incorporated with Sn4+, Ba2+, and Sc3+, was successfully synthesized using solid-state reaction to explore every cationic site comprehensively. The crystal strucПоказать полностьюtures were well resolved by combining synchrotron X-ray diffraction and neutron powder diffraction through joint Rietveld refinements. The trapping of free electrons induced by charge unbalances and lattice vacancies changes the magnetic properties, which was well explained by a Dyson curve in electron paramagnetic resonance. Temperature and pressure-dependent photoluminescence spectra reveal various luminescent properties between strong and weak fields in different dopant centers. The phosphor-converted NIR light-emitting diode (pc-NIR LED) package demonstrates a superior broadband emission that covers the near-infrared (NIR) region of 650-1050 nm. This study can provide researchers with new insight into the control mechanism of multiplecation-site phosphors and reveal a potential phosphor candidate for practical NIR LED application.

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Издание

Журнал: INORGANIC CHEMISTRY

Выпуск журнала: Vol. 59, Is. 20

Номера страниц: 15101-15110

ISSN журнала: 00201669

Место издания: WASHINGTON

Издатель: AMER CHEMICAL SOC

Персоны

  • De Guzman Gabriel Nicolo A. (Natl Taiwan Normal Univ, Dept Phys, Taipei 116, Taiwan)
  • Rajendran Veeramani (Natl Taipei Univ Technol, Dept Mech Engn, Taipei 106, Taiwan; Natl Taipei Univ Technol, Grad Inst Mfg Technol, Taipei 106, Taiwan)
  • Bao Zhen (Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan)
  • Fang Mu-Huai (Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan)
  • Pang Wei-Kong (Univ Wollongong, Fac Engn, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia)
  • Mahlik Sebastian (Univ Gdansk, Fac Math Phys & Informat, Inst Expt Phys, PL-80308 Gdansk, Poland)
  • Lesniewski Tadeusz (Univ Gdansk, Fac Math Phys & Informat, Inst Expt Phys, PL-80308 Gdansk, Poland)
  • Grinberg Marek (Univ Gdansk, Fac Math Phys & Informat, Inst Expt Phys, PL-80308 Gdansk, Poland)
  • Molokeev Maxim S. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 60041, Russia; Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia)
  • Leniec Grzegorz (West Pomeranian Univ Technol, Dept Mech Engn & Mechatron, Inst Phys, PL-70311 Szczecin, Poland)
  • Kaczmarek Slawomir M. (West Pomeranian Univ Technol, Dept Mech Engn & Mechatron, Inst Phys, PL-70311 Szczecin, Poland)
  • Ueda Jumpei (Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan)
  • Lu Kuang-Mao (Everlight Elect Co Ltd, New Taipei 238, Taiwan)
  • Hu Shu-Fen (Natl Taiwan Normal Univ, Dept Phys, Taipei 116, Taiwan)
  • Chang Ho (Natl Taipei Univ Technol, Dept Mech Engn, Taipei 106, Taiwan; Natl Taipei Univ Technol, Grad Inst Mfg Technol, Taipei 106, Taiwan)
  • Liu Ru-Shi (Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan)