Glass crystallization making red phosphor for high-power warm white lighting

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1038/s41377-021-00498-6

Аннотация: Rapid development of solid-state lighting technology requires new materials with highly efficient and stable luminescence, and especially relies on blue light pumped red phosphors for improved light quality. Herein, we discovered an unprecedented red-emitting Mg2Al4Si5O18:Eu2+ composite phosphor (λex = 450 nm, λem = 620 nm) via theПоказать полностьюcrystallization of MgO–Al2O3–SiO2 aluminosilicate glass. Combined experimental measurement and first-principles calculations verify that Eu2+ dopants insert at the vacant channel of Mg2Al4Si5O18 crystal with six-fold coordination responsible for the peculiar red emission. Importantly, the resulting phosphor exhibits high internal/external quantum efficiency of 94.5/70.6%, and stable emission against thermal quenching, which reaches industry production. The maximum luminous flux and luminous efficiency of the constructed laser driven red emitting device reaches as high as 274 lm and 54 lm W−1, respectively. The combinations of extraordinary optical properties coupled with economically favorable and innovative preparation method indicate, that the Mg2Al4Si5O18:Eu2+ composite phosphor will provide a significant step towards the development of high-power solid-state lighting. © 2021, The Author(s).

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Издание

Журнал: Light: Science and Applications

Выпуск журнала: Vol. 10, Is. 1

Номера страниц: 56

ISSN журнала: 20955545

Издатель: Springer Nature

Персоны

  • Hu Tao (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)
  • Ning Lixin (Anhui Normal Univ, Anhui Key Lab Optoelect Mat Sci & Technol, Key Lab Funct Mol Solids, Minist Educ, Wuhu, Anhui, Peoples R China)
  • Gao Yan (Wuyi Univ, Sch Appl Phys & Mat, Jiangmen, Guangdong, Peoples R China)
  • Qiao Jianwei (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)
  • Song Enhai (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)
  • Chen Zitao (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)
  • Zhou Yayun (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)
  • Wang Jing (Sun Yat Sen Univ, Minist Educ, Key Lab Bioinorgan & Synthet Chem,Sch Chem & Chem, State Key Lab Optoelect Mat & Technol,KLGHEI Envi, Guangzhou, Guangdong, Peoples R China)
  • Molokeev Maxim S. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia; Kemerovo State Univ, Dept Res & Dev, Kemerovo, Russia)
  • Ke Xiaoxing (Beijing Univ Technol Beijing, Inst Microstruct & Property Adv Mat, Beijing, Peoples R China)
  • Xia Zhiguo (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)
  • Zhang Qinyuan (South China Univ Technol, Sch Phys & Optoelect, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China; South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China)