典型文献
Spectral change and far-red emission of Mn2+ ions co-doped NaSrB5O9∶Dy3+ luminescence material for plant growth LEDs
文献摘要:
Due to the characteristic emission of phosphors,phosphor-converted LEDs have been employed to provide the requisite light sources for indoor plant growth in the optical agricultural industry.Herein,we prepared a series of Mn2+ co-doped NaSrB5O9∶Dy3+ phosphors via a solid-state reaction method.These phosphors have significant three-band emissions at 467 nm (blue region),606 nm (orange region),and 765 nm (far-red region),ascribed to the 4F9/2-6H15/2 and 4F9/2-6H13/2 transitions of the Dy3+ ions and the 4T1g(G)-6A1g(S) spin-forbidden transition of the Mn2+ ions,respectively,when excited by light of 376 nm(near-UV region).The co-dopant in the host material facilitates tunable photoluminescence (PL) due to energy transfer from the Dy3+ ions to the Mn2+ ions.The three emission peaks from the prepared phosphors well match with the absorption spectra of the photosynthesis pigments of plants,chlorophyll and phytochrome,which can absorb blue (400-500 nm),orange-red (550-700 nm),and infrared (IR)radiation,indicating that these phosphors have potential applications in the fabrication of plant-growth LEDs.Prior to the PL studies,the structure of the phosphors was determined by X-ray diffraction,refined by Rietveld method and chemically quantified by X-ray Photoelectron spectroscopy.
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中图分类号:
作者姓名:
K.Munirathnam;Koduru Mallikarjuna;R.Vijaya;P.C.Nagajyothi;K.Ramakrishna Reddy;M.Srinivas
作者机构:
Department of Physics,School of Applied Sciences,REVA University,Bengaluru,560064,India;Department for Management of Science and Technology Development,Ton Duc Thang University,Ho Chi Minh City,Vietnam;Faculty of Applied Sciences,Ton Duc Thang University,Ho Chi Minh City,Vietnam;Department of Physics,Visvodaya Government Degree College,Venkatagiri,524132,India;School of Mechanical Engineering,Yeungnam University,Gyeongsan,38541,South Korea;Department of Chemistry,School of Applied Sciences,REVA University,Bengaluru,560064,India
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引用格式:
[1]K.Munirathnam;Koduru Mallikarjuna;R.Vijaya;P.C.Nagajyothi;K.Ramakrishna Reddy;M.Srinivas-.Spectral change and far-red emission of Mn2+ ions co-doped NaSrB5O9∶Dy3+ luminescence material for plant growth LEDs)[J].稀土学报(英文版),2022(02):218-225
A类:
NaSrB5O9,6H15,4T1g,6A1g
B类:
Spectral,change,far,Mn2+,doped,Dy3+,material,growth,LEDs,Due,characteristic,phosphors,converted,have,been,employed,provide,requisite,light,sources,indoor,optical,agricultural,industry,Herein,prepared,series,via,solid,state,reaction,method,These,significant,three,band,emissions,blue,region,orange,ascribed,4F9,6H13,transitions,spin,forbidden,respectively,when,excited,by,near,UV,dopant,host,facilitates,tunable,photoluminescence,PL,due,energy,transfer,from,peaks,well,match,absorption,spectra,photosynthesis,pigments,plants,chlorophyll,phytochrome,which,absorb,infrared,radiation,indicating,that,these,potential,applications,fabrication,Prior,studies,structure,was,determined,ray,diffraction,refined,Rietveld,chemically,quantified,Photoelectron,spectroscopy
AB值:
0.512122
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