Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Yasuo Shimomura"'
Publikováno v:
Journal of Materials Chemistry C. 3:204-210
A new blue-green phosphor, Ca6BaP4O17:Ce3+, which can be prepared by conventional solid-state synthesis, is reported as a candidate phosphor for solid-state lighting with near-ultraviolet LEDs. Under excitation at around 400 nm, Ca6BaP4O17:Ce3+ shows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::446a69c8f770e651a670f45527571658
https://doi.org/10.1039/c4tc01835d
https://doi.org/10.1039/c4tc01835d
Publikováno v:
Dalton Transactions. 44:1775-1781
A novel Ce3+ activated Lu3MgAl3SiO12:Ce phosphor was synthesized and found to crystallize in the garnet structure. The crystal structure of the synthesized phosphor has been characterised by X-ray diffraction and Rietveld refinement. Both room and hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80042ca333c74258f7d5eaf8ba00f5f8
https://doi.org/10.1039/c4dt03144j
https://doi.org/10.1039/c4dt03144j
Autor:
Ting-Shan Chan, Chang-Yang Chiang, Fumitaka Yoshimura, Yasuo Shimomura, Ru-Shi Liu, Wuzong Zhou, Wan-Yu Huang, Hwo-Shuenn Sheu, Kyota Ueda
Publikováno v:
Chemistry of Materials. 26:2075-2085
Novel promising blue MSiAl2O3N2:Ce3+ (M = Sr, Ba) and green BaSiAl2O3N2:Eu2+ oxynitride phosphors with broad band emission for white light-emitting diodes are obtained in this study. The detailed energy transfer mechanism from Ce3+ to Eu2+ in SrSiAl2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25f013d3b8e53b7c6a789062c467e965
https://doi.org/10.1021/cm404058j
https://doi.org/10.1021/cm404058j
Publikováno v:
Materials Research Bulletin. 50:405-408
CaZr 4 P 4 O 24 :Eu orthophosphate phosphor was synthesized by traditional solid state reaction in air atmosphere. The relationship between the host structure and the characteristic luminescence properties was discussed detailedly. When irradiate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37b2df2ffa1d8f4519c861015e93959e
https://doi.org/10.1016/j.materresbull.2013.11.012
https://doi.org/10.1016/j.materresbull.2013.11.012
Publikováno v:
CrystEngComm. 16:6089-6097
As new light sources for next-generation illumination, white light-emitting diodes (LEDs) have been developed extensively and are commercially available due to their excellent advantages. However, the current white LEDs present in the market based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::781d05490929488a807e02e1672cb499
https://doi.org/10.1039/c4ce00523f
https://doi.org/10.1039/c4ce00523f
Publikováno v:
Materials Research Bulletin. 48:114-117
Color tunable LaCaAl3O7:0.05Ce3+,yTb3+ (LCA:0.05Ce3+,yTb3+) phosphors were synthesized by solid state reaction. The luminescence spectra and the lifetime were investigated in detail. Results confirm that Tb3+ can substitute all La3+ sites without imp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::828a748ecbc0d1b45771b79b4c2584c3
https://doi.org/10.1016/j.materresbull.2012.10.014
https://doi.org/10.1016/j.materresbull.2012.10.014
In 1996, a new lighting device was proposed by Nichia Chemical Co., Japan, using a blue InGaN LED chip coated with a yellow-emitting phosphor of yttrium aluminum garnet (Y 2.9 Ce 0.1 Al 5 O 12 , YAG:Ce 3 + ), so-called white LEDs. The lighting device
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8dc8762b2091399334b79584e771439
https://doi.org/10.1016/bs.hpcre.2016.03.001
https://doi.org/10.1016/bs.hpcre.2016.03.001
Autor:
Masahiko Yoshino, Yasuo Shimomura, Shinji Yamashita, Yoichiro Nakanishi, Hiroko Kominami, Kazuhiko Hara
Publikováno v:
JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN. 93:802-806
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36779738f2782677c9d77297b7a35b2e
https://doi.org/10.2150/jieij.93.802
https://doi.org/10.2150/jieij.93.802
Publikováno v:
Chemical Physics Letters. 455:279-283
A series of vanadate garnets with the composition Bi x Ln y Eu 1− x − y Na 2 Mg 2 V 3 O 12 (where Ln = Y, La, Gd; x = 0–0.4 and y = 0–0.2) were synthesized and their applications as red phosphors for solid state lighting were investigated. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa3a7b728c606102fc7ebaa844eba0ee
https://doi.org/10.1016/j.cplett.2008.02.083
https://doi.org/10.1016/j.cplett.2008.02.083
Autor:
Tomoyuki Kurushima, Kyota Uheda, Yasuo Shimomura, Naoto Kijima, Satoshi Shimooka, Hiromu Watanabe, Masayoshi Mikami
Publikováno v:
Journal of Light & Visual Environment. 32:202-207
High-luminous green phosphors and a red phosphor have been newly developed for white LEDs. The developed green phosphors are Ca3(Sc,Mg)2Si3O12:Ce made by replacing with Mg a part of Sc of green phosphor Ca3Sc2Si3O12:Ce, a new green phosphor CaSc2O4:C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44d99dd199c91a5d163b499f6d510db0
https://doi.org/10.2150/jlve.32.202
https://doi.org/10.2150/jlve.32.202