Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
IEICE-EID, IDY, IEE-EDD, SID-JC, IEIJ-SSL [detail] |
2024-01-25 13:35 |
Kyoto |
(Primary: On-site, Secondary: Online) |
Luminescence and electrical properties of far-red ZnGa2O4:Cr3+ posphor thin films
-- Improvement in luminescent characteristics by In addition -- Ryota Hourai, Akihisa Yamasaki, Koutoku Ohmi (Tottori Univ.) |
The luminescent properties of ZnGa2O4:Cr3+ far-red phosphors were investigated by In addition. In the phosphor powder sa... [more] |
|
IDY, SID-JC |
2023-03-17 16:00 |
Online |
online |
[Invited Talk]
Development of Phosphor film for Ultra-thin High-brightness LCDs Takehiro Yamasuge, Yasushi Ito, Tomomitsu Hori (Dexerials) |
In recent years, mini-LEDs and local dimming have been used in direct-type backlight units (BLUs) in LCDs to realize thi... [more] |
IDY2023-22 pp.39-43 |
IDY, IEIJ-SSL, IEICE-EID, SID-JC, IEE-EDD [detail] |
2023-01-27 14:25 |
Online |
|
Improvement of Photoluminescent Characteristics by Post Annealing in O3 atmosphere for Y4Si2O7N2:Eu3+ Red Phosphors Rentaro Furuie, Hiroki Shinoda (TU), Takashi Kunimoto (Tokushima Bunri), Koutoku Ohmi (TU) |
A low-temperature post-annealing in O3 atmosphere has been attempted to enhance the Eu3+ activation for Y4Si2O7N2:Eu3+ r... [more] |
IDY2023-9 pp.33-36 |
IDY, IEIJ-SSL, IEICE-EID, SID-JC, IEE-EDD [detail] |
2023-01-27 14:35 |
Online |
|
Study of dispersed inorganic EL devices using ZnS:Cu nanophosphors
-- Improvement of PL and EL characteristics by liquid-phase mixing ZnS:Cu and CuS particles -- Rei Matsukuma, Ryousuke Nagai, Koutoku Ohmi (Tottori Univ.) |
For the dispersed inorganic electroluminescence (EL) devices using ZnS:Cu phosphor, improvements of luminance and lumino... [more] |
IDY2023-10 pp.37-40 |
IDY, IEICE-EID, IEE-EDD, SID-JC, IEIJ-SSL [detail] |
2022-01-28 11:30 |
Online |
|
Liquid phase synthesis of near-infrared phosphor Ca2GeO4: Mn5+ for in vivo bioimaging Yudai Nitta, Hiroto Sanzen, Koutoku Ohmi (Tottori Univ.) |
In our previous studies, Ca2GeO4:Mn5+ has been synthesized as a near-infrared (NIR) phosphor for bioimaging by the solid... [more] |
|
IEICE-EID, IDY, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2021-01-29 10:00 |
Kyoto |
|
Red luminescence excited by blue light in (Ca,Sr)5(PO4)3F:Eu2+ Kai Shimura, Hiroki Kushima, Yuki Tamura, Tsuyoshi Okuno (UEC Tokyo) |
The red phosphor (Ca,Sr)5(PO4)3F:Eu2+ is reported. Under visible light excitation at 400–600 nm, broad red luminescence ... [more] |
IDY2021-1 pp.33-36 |
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-23 13:45 |
Tottori |
Tottori Univ |
[Poster Presentation]
New sulfide phosphors able to be grown on silicon wafer Hiroki Nakamura, Mizuki Aono, Tsuyoshi Okuno (UEC Tokyo), Yasushi Nanai (Aoyama Gakuin Univ.) |
New green phosphor SrZnSiS4:Eu2+ is reported. It has an orthorhombic structure with a space group of Fddd (no.70). Absor... [more] |
IDY2020-10 pp.33-36 |
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-23 13:50 |
Tottori |
Tottori Univ |
[Poster Presentation]
Investigation of correlation between PL temperature characteristics and charge transfer state (CTS) in Eu3+ activated red multi-anion compound phosphors Misa Kawashima, Ken Kinoshita, Takuya Sohma, Kodai Nakamoto, Tadashi Ishigaki (Tottori Univ.), Takashi Kunimoto (Tokushima Bunri Univ.), Koutoku Ohmi (Tottori Univ.) |
Eu3+ activated red multi-anion compound phosphors, such as Y4Si2O7N2:Eu3+ (YSON), La2O3:Eu3+ (LO) and LaOF:Eu3+ (LOF), h... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-23 14:00 |
Tottori |
Tottori Univ |
[Poster Presentation]
Excitation and luminescent characteristics LaSiO2N:Eu red phosphors synthesized in NH3 KenKinoshita, Misa Kawashima, Takuya Sohma, Tadashi Ishigaki (Tottori Univ.), Takashi Kunimoto (Tokusima Bunri Univ.), Koutoku Ohmi (Tottori Univ.) |
Red Phosphor LaSiO2N:Eu has been synthesized in NH3 atmosphere. The synthesized sample shows a red emission due to Eu3+ ... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-23 14:05 |
Tottori |
Tottori Univ |
[Poster Presentation]
Dispersive type EL devices prepared using ZnS:Cu nanophosphor
-- Improvement of PL and EL characteristics by adding several flux materials -- Koki Saruta, Shuma Bando, Tadashi Ishigaki, Koutoku Ohmi (Tottori Univ) |
For dispersive inorganic electroluminescent (EL) devices using ZnS:Cu phosphor, improvement of luminance and efficiency ... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-23 14:10 |
Tottori |
Tottori Univ |
[Poster Presentation]
Mn5+ activated M2AO4 (M = Ca, Sr, Ba, A = Si, Ge) near-infrared phosphors Shoto Tanaka, Tadashi Ishigaki, Yutaro Zaima, Kohei Matsubara, Yudai Nitta, Koutoku Ohmi (Tottori Univ.) |
M2AO4:Mn5+ (M = Ca, Sr, Ba, A = Si, Ge) phosphors have been synthesized by solid-state reaction method. Their crystallog... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-24 10:10 |
Tottori |
Tottori Univ |
[Poster Presentation]
Quality of deep ultraviolet emitting ZnAl2O4 thin films prepared by thermal diffusion Kaito Imagawa, Naoki Sonoda, Hiroko Kominami, Kazuhiko Hara (Shizuoka Univ.) |
ZnAl2O4 thin films for deep UV emitting phosphor prepared by deposition of ZnO on sapphire substrates and thermal diffus... [more] |
IDY2020-16 pp.81-84 |
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-24 10:55 |
Tottori |
Tottori Univ |
[Poster Presentation]
Current injection type emission devices using conductive ternary sulfide/oxide phosphor thin films Kazuki Tsujimori, Syunjo Koga, Tadashi Ishigki, Koutoku Ohmi (Tottori Univ.) |
In this study, the fabrication of current-injection type light-emitting devices using CuAlS_2:Mn and ZnGa_2O_4:Cr polycr... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-24 11:05 |
Tottori |
Tottori Univ |
[Poster Presentation]
Influence of Bi codoping to excitation characteristics in tetragonal Mg2TiO4:Mn4+ deep red phosphors Motoshi Suhama, Yusuke Ueno, Tadashi Ishigaki, Koutoku Ohmi (Tottori Univ.) |
In this study, the Bi3+ codoping to Mg2TiO4:Mn4+ has been attempted. In addition, a low temperature annealing at 625°C f... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2020-01-24 11:20 |
Tottori |
Tottori Univ |
[Poster Presentation]
Characteristics of luminescence and particle shape in M10(PO4)6(OH)2:Mn5+ (M=Ca,Sr,Ba) near-infrared nanophosphors Yutaro Zaima, Tadashi Ishigaki, Kouhei Matsubara, Shoto Tanaka, Yudai Nitta, Koutoku Ohmi (tottori Univ) |
Recently, we succeeded in synthesizing a near-infrared Ca10(PO4)6(OH)2:Mn5+ (HAp:Mn5+) nanophosphors by liquid phase rea... [more] |
|
IDY, IEICE-EID, IEIJ-SSL, SID-JC, IEE-EDD [detail] |
2019-01-25 09:55 |
Kagoshima |
|
[Poster Presentation]
Current injection type emission devices using CuAlS2:Mn phosphor thin films
-- SiO2 barrier layer suppressing interfacial diffusion between phosphor/electrode layers -- Shogo Ueda, Kazuki Tujimori, Tadashi Ishigaki, Koutoku Ohmi (Tottori Univ.) |
Red light-emitting devices consisting of CuAlS2:Mn polycrystalline phosphor thin films have been investigated. CuAlS2:Mn... [more] |
IDY2019-17 pp.81-84 |
IDY |
2017-02-24 14:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
[Invited Talk]
Improvement of Photodegradation of (Ca, Sr)2(Al,Si)5(O,N)8:Eu Phosphors by Composition Change and Realization of High CRI White-LEDs Tsuneo Kusunoki, Masaki Kanno, Moriaki Abe (Dexerials Corp.) |
Nitridosilicates (Ca,Sr)2(1-x)(Aly,Si1-y)5(O,N)8:Eux are efficient and affordable red-emitting phosphors. In this study ... [more] |
IDY2017-20 pp.11-14 |
IEICE-EID, IDY, IEE-EDD, SID-JC, IEIJ-SSL [detail] |
2016-01-28 13:54 |
Toyama |
Toyama Univ. |
Synthesis of YVO4:Bi,Eu nanoparticles and wavelength conversion films for solar panels
-- In-situ pH monitor for highly activating Bi and Eu centers -- Ryosuke Sakata, Ryo Nagayama (Tottori Univ.), Tadashi Ishigaki (TiFREC), Hiroshi Okura (Merck Ltd.), Koutoku Ohmi (Tottori Univ.) |
The strong light absorption and visible light scattering is required for wavelength conversion phosphors for solar batte... [more] |
IDY2016-1 pp.13-16 |
IEICE-EID, IDY, IEE-EDD, SID-JC, IEIJ-SSL [detail] |
2016-01-29 10:28 |
Toyama |
Toyama Univ. |
Synthesis and Luminescence Properties of Mn4+-activated Red-emitting Phosphor Takuya Hasegawa, Tsubasa Yoshizawa, Hiromi Mizobuchi, Sun-Woog Kim, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato (Niigata Univ.) |
Red-emitting La2MgGeO6:Mn4+ and α-Al2O3:Mn4+ phosphors were synthesized by a polymerized complex method and a novel flux... [more] |
|
IEICE-EID, IDY, IEE-EDD, SID-JC, IEIJ-SSL [detail] |
2016-01-29 11:25 |
Toyama |
Toyama Univ. |
Synthesis and luminescent properties of Eu2+-activated Alkaline and Alkaline Earth silicate phosphors. Takenori Ishikawa, Takashi Kunimoto (Tokushima Bunri Univ), Dohoon Kim, Takatoshi Seto (Samsung R&D Institute Japan) |
Eu2+-activated alkaline and alkaline earth silicate phosphors Na2Ba6Si4O15:Eu2+and Li2Ca2Si5O13:Eu2+has been synthesized... [more] |
|