Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation

Ziwei Zhou, Jiming Zheng, Rui Shi, Niumiao Zhang, Jiayu Chen, Ruoyu Zhang, Hao Suo, Ewa M. Goldys, Chongfeng Guo

Research output: Research - peer-reviewArticle

Abstract

Mn4+-activated oxide phosphors La(MgTi)1/2O3 (LMT) with far-red emitting were prepared via a sol-gel route. The structures of samples were determined by X-ray diffraction (XRD) and Reitveld refinement. The occupied sites of Mn4+ (d3 electronic configuration) in host La(MgTi)1/2O3 were confirmed by ab initio calculations in which the system has the lower formation energy, stable lattice structure, and strong bonding state as Mn4+ enters into Ti site. The luminescent properties of Mn4+-doped samples were investigated; the samples emit far-red light centered at 708 nm with ultraviolet light (345 nm) or blue light (487 nm) excitation. According to the photoluminescence (PL) and excitation (PLE) spectra, the crystal field strength of the Mn4+-occupied environment was estimated. The thermal stability of phosphor was also evaluated through temperature-dependent PL intensity in a heating and cooling cycle process. The emission band is well-matched with the absorption band of phytochrome PFR under the excitation of light in near-ultraviolet to blue, which suggests that the LMT: Mn4+ phosphor has great potential applications in light-emitting diodes (LEDs) for modulating plant growth.

LanguageEnglish
Pages6177-6185
Number of pages9
JournalACS Applied Materials and Interfaces
Volume9
Issue number7
DOIs
StatePublished - 22 Feb 2017

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Phosphors
Photoluminescence
Oxides
Sol-gels
Light emitting diodes
Absorption spectra
Thermodynamic stability
Cooling
Heating
X ray diffraction
Temperature
Ultraviolet Rays
Crystals

Cite this

Zhou, Z., Zheng, J., Shi, R., Zhang, N., Chen, J., Zhang, R., ... Guo, C. (2017). Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation. ACS Applied Materials and Interfaces, 9(7), 6177-6185. DOI: 10.1021/acsami.6b15866
Zhou, Ziwei ; Zheng, Jiming ; Shi, Rui ; Zhang, Niumiao ; Chen, Jiayu ; Zhang, Ruoyu ; Suo, Hao ; Goldys, Ewa M. ; Guo, Chongfeng. / Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation. In: ACS Applied Materials and Interfaces. 2017 ; Vol. 9, No. 7. pp. 6177-6185
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abstract = "Mn4+-activated oxide phosphors La(MgTi)1/2O3 (LMT) with far-red emitting were prepared via a sol-gel route. The structures of samples were determined by X-ray diffraction (XRD) and Reitveld refinement. The occupied sites of Mn4+ (d3 electronic configuration) in host La(MgTi)1/2O3 were confirmed by ab initio calculations in which the system has the lower formation energy, stable lattice structure, and strong bonding state as Mn4+ enters into Ti site. The luminescent properties of Mn4+-doped samples were investigated; the samples emit far-red light centered at 708 nm with ultraviolet light (345 nm) or blue light (487 nm) excitation. According to the photoluminescence (PL) and excitation (PLE) spectra, the crystal field strength of the Mn4+-occupied environment was estimated. The thermal stability of phosphor was also evaluated through temperature-dependent PL intensity in a heating and cooling cycle process. The emission band is well-matched with the absorption band of phytochrome PFR under the excitation of light in near-ultraviolet to blue, which suggests that the LMT: Mn4+ phosphor has great potential applications in light-emitting diodes (LEDs) for modulating plant growth.",
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Zhou, Z, Zheng, J, Shi, R, Zhang, N, Chen, J, Zhang, R, Suo, H, Goldys, EM & Guo, C 2017, 'Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation' ACS Applied Materials and Interfaces, vol 9, no. 7, pp. 6177-6185. DOI: 10.1021/acsami.6b15866

Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation. / Zhou, Ziwei; Zheng, Jiming; Shi, Rui; Zhang, Niumiao; Chen, Jiayu; Zhang, Ruoyu; Suo, Hao; Goldys, Ewa M.; Guo, Chongfeng.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 7, 22.02.2017, p. 6177-6185.

Research output: Research - peer-reviewArticle

TY - JOUR

T1 - Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation

AU - Zhou,Ziwei

AU - Zheng,Jiming

AU - Shi,Rui

AU - Zhang,Niumiao

AU - Chen,Jiayu

AU - Zhang,Ruoyu

AU - Suo,Hao

AU - Goldys,Ewa M.

AU - Guo,Chongfeng

PY - 2017/2/22

Y1 - 2017/2/22

N2 - Mn4+-activated oxide phosphors La(MgTi)1/2O3 (LMT) with far-red emitting were prepared via a sol-gel route. The structures of samples were determined by X-ray diffraction (XRD) and Reitveld refinement. The occupied sites of Mn4+ (d3 electronic configuration) in host La(MgTi)1/2O3 were confirmed by ab initio calculations in which the system has the lower formation energy, stable lattice structure, and strong bonding state as Mn4+ enters into Ti site. The luminescent properties of Mn4+-doped samples were investigated; the samples emit far-red light centered at 708 nm with ultraviolet light (345 nm) or blue light (487 nm) excitation. According to the photoluminescence (PL) and excitation (PLE) spectra, the crystal field strength of the Mn4+-occupied environment was estimated. The thermal stability of phosphor was also evaluated through temperature-dependent PL intensity in a heating and cooling cycle process. The emission band is well-matched with the absorption band of phytochrome PFR under the excitation of light in near-ultraviolet to blue, which suggests that the LMT: Mn4+ phosphor has great potential applications in light-emitting diodes (LEDs) for modulating plant growth.

AB - Mn4+-activated oxide phosphors La(MgTi)1/2O3 (LMT) with far-red emitting were prepared via a sol-gel route. The structures of samples were determined by X-ray diffraction (XRD) and Reitveld refinement. The occupied sites of Mn4+ (d3 electronic configuration) in host La(MgTi)1/2O3 were confirmed by ab initio calculations in which the system has the lower formation energy, stable lattice structure, and strong bonding state as Mn4+ enters into Ti site. The luminescent properties of Mn4+-doped samples were investigated; the samples emit far-red light centered at 708 nm with ultraviolet light (345 nm) or blue light (487 nm) excitation. According to the photoluminescence (PL) and excitation (PLE) spectra, the crystal field strength of the Mn4+-occupied environment was estimated. The thermal stability of phosphor was also evaluated through temperature-dependent PL intensity in a heating and cooling cycle process. The emission band is well-matched with the absorption band of phytochrome PFR under the excitation of light in near-ultraviolet to blue, which suggests that the LMT: Mn4+ phosphor has great potential applications in light-emitting diodes (LEDs) for modulating plant growth.

KW - far-red emission

KW - LEDs

KW - phosphor

KW - phytochrome

KW - plant growth

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U2 - 10.1021/acsami.6b15866

DO - 10.1021/acsami.6b15866

M3 - Article

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EP - 6185

JO - ACS Applied Materials and Interfaces

T2 - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

SN - 1944-8244

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Zhou Z, Zheng J, Shi R, Zhang N, Chen J, Zhang R et al. Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation. ACS Applied Materials and Interfaces. 2017 Feb 22;9(7):6177-6185. Available from, DOI: 10.1021/acsami.6b15866