Site occupancy strategy for emission tunable K3HF2W1-xOF6:xMn4+ nanophosphor via ions exchange

Lingling Peng; Jiufeng Wu; Qinping Qiang; Shixiu Cao; Wenbo Chen; Tao Han; Bitao Liu

Chemical Physics Impact (Jun 2023)

Site occupancy strategy for emission tunable K3HF2W1-xOF6:xMn4+ nanophosphor via ions exchange

Lingling Peng,
Jiufeng Wu,
Qinping Qiang,
Shixiu Cao,
Wenbo Chen,
Tao Han,
Bitao Liu

Affiliations

Lingling Peng: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China; Corresponding author.
Jiufeng Wu: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China; School of Materials Science and Engineering. Hubei University, Wuchang, Wuhan, 443002, China
Qinping Qiang: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Shixiu Cao: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Wenbo Chen: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Tao Han: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
Bitao Liu: National research base of Micro/Nano Optoelectronic Materials and Devices, College of Materials Science and Engineering, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China

Journal volume & issue: Vol. 6
p. 100216

Abstract

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A novel uniformly ellipsoidal K3HF2W1-xOF6:xMn4+ nanophosphor were demonstrated by ion exchange method without K2MnF6. The samples had wide excitation range from ultraviolet to visible light and tunable emission spectra from green to red were obtained which can be regulated by the emitting spectra of K3HF2WOF6 host and Mn4+. Energy transfer efficiency from [WOF6]2− to Mn4+ were improved with the increase of Mn4+. The peak position of thermal stability spectra of K3HF2WOF6 were blueshifted while Mn4+ doped samples undergoes a redshift. The crystal field strength and the Racah parameters were estimated and luminescence mechanism was explained by the Tanabe–Sugano energy level diagram of the Mn4+. Microsecond fluorescence lifetime indicates it advantages in fast react displays to avoid ghost images. The results indicate that K3HF2W1-xOF6:xMn4+ nanophosphor has potential application in display, converting phosphors for UV and blue LED and indoor plant supplyment light.

Published in Chemical Physics Impact

ISSN: 2667-0224 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics; Science: Chemistry
Website: https://www.journals.elsevier.com/chemical-physics-impact/

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