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The optical spectrum of UVLED excitation using NTC nanometer particles to replace rare earth doping

The optical spectrum of UVLED excitation using NTC nanometer particles to replace rare earth doping
The optical spectrum of UVLED excitation using NTC nanometer particles to replace rare earth doping
Ultraviolet light-emitting diodes (UVLEDs)with phosphor materials have considerable advantages over traditional illumination devices. Doping with rare earth ions can modify the optical spectrum of phosphor materials, but rare earths are very expensive. Thus, replacing rare earths with a common material would provide a great potential for the wide application in the future. In this study, we discovered that a novel type of semiconductor nanometre powder, namely manganese cobalt nickel copper oxide (MCNC), is able to emit blue-green wavelength spectrum when exited by 365-400nmUVLED. In addition, MCNC shows less attenuation of luminescence efficiency than other UVLED phosphor materials doped with rare earths with temperature increase. It is thus concluded that MCNC is a promising low-cost material to replace rare earths to adjust the optical spectrum wavelength of UVLED. This is the first time that nano-scale MCNC is reported to possess the property to change the optical spectrum wavelength of UVLED. This provides a new mechanical and nanometer phosphor material without rare earth doping to shift the wavelength spectrum.
1895-1904
Su, Lihong
e571a48b-a044-4c70-8a06-8178d0c978a1
Chen, Kan
79a29214-c3f9-47b7-87c0-5619d72cdeb4
Liu, Yongqiang
75adc6f8-aa83-484e-9e87-6c8442e344fa
Zou, Ziao
b58d036c-2225-4ab8-a1f0-c705f72b1e48
Su, Lihua
4c181b78-430b-46f3-8db0-031d6919d93c
Su, Lihong
e571a48b-a044-4c70-8a06-8178d0c978a1
Chen, Kan
79a29214-c3f9-47b7-87c0-5619d72cdeb4
Liu, Yongqiang
75adc6f8-aa83-484e-9e87-6c8442e344fa
Zou, Ziao
b58d036c-2225-4ab8-a1f0-c705f72b1e48
Su, Lihua
4c181b78-430b-46f3-8db0-031d6919d93c

Su, Lihong, Chen, Kan, Liu, Yongqiang, Zou, Ziao and Su, Lihua (2019) The optical spectrum of UVLED excitation using NTC nanometer particles to replace rare earth doping. MRS Advances, 4 (33-34), 1895-1904. (doi:10.1557/adv.2019.240).

Record type: Article

Abstract

Ultraviolet light-emitting diodes (UVLEDs)with phosphor materials have considerable advantages over traditional illumination devices. Doping with rare earth ions can modify the optical spectrum of phosphor materials, but rare earths are very expensive. Thus, replacing rare earths with a common material would provide a great potential for the wide application in the future. In this study, we discovered that a novel type of semiconductor nanometre powder, namely manganese cobalt nickel copper oxide (MCNC), is able to emit blue-green wavelength spectrum when exited by 365-400nmUVLED. In addition, MCNC shows less attenuation of luminescence efficiency than other UVLED phosphor materials doped with rare earths with temperature increase. It is thus concluded that MCNC is a promising low-cost material to replace rare earths to adjust the optical spectrum wavelength of UVLED. This is the first time that nano-scale MCNC is reported to possess the property to change the optical spectrum wavelength of UVLED. This provides a new mechanical and nanometer phosphor material without rare earth doping to shift the wavelength spectrum.

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e-pub ahead of print date: 20 May 2019
Published date: 2019

Identifiers

Local EPrints ID: 435298
URI: http://eprints.soton.ac.uk/id/eprint/435298
PURE UUID: 9fe598f8-d58c-4e81-b6cd-dcfe3fe161e9

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Date deposited: 30 Oct 2019 17:30
Last modified: 13 Aug 2020 16:37

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Contributors

Author: Lihong Su
Author: Kan Chen
Author: Yongqiang Liu
Author: Ziao Zou
Author: Lihua Su

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