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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 12 of 12  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
LQE, ED, CPM 2023-12-01
16:40
Shizuoka   Development of Shorter Wavelength 230 nm-Band Far-UVC LEDs and Realization of High Output Power LED Panels
Mitsuhiro Muta, Hiroyuki Oogami, Kengo Mouri, Hirokazu Kawashima (Nippon Tungsten), Noritoshi Maeda, Ajmal Khan, Yukio Kashima, Eriko Katsuura, Yuuki Nakamura, Kou Sumishi, Taiga Kirihara (RIKEN), Sachie Fujikawa, Hiroyuki Yaguchi (Saitama Univ), Yasushi Iwaisako (Nippon Tungsten), Hideki Hirayama (RIKEN) ED2023-37 CPM2023-79 LQE2023-77
AlGaN-based 230nm-band far-UVC LEDs that is harmless to the human body were developed toward achievements of shorter wav... [more] ED2023-37 CPM2023-79 LQE2023-77
pp.102-105
CPM, ED, LQE 2022-11-25
13:40
Aichi Winc Aichi (Aichi Industry & Labor Center)
(Primary: On-site, Secondary: Online)
Efficiency Improvement of 230 nm-band AlGaN based LEDs with Al Compositional Graded Layer
Noritoshi Maeda, Yukio Kashima, Eriko Matsuura (RIKEN), Yasushi Iwaisako (NT), Hideki Hirayama (RIKEN) ED2022-45 CPM2022-70 LQE2022-78
Inactivation of SARS-CoV-2 using far-ultraviolet C 230 nm band LEDs has attracted attention. As an approach to improve t... [more] ED2022-45 CPM2022-70 LQE2022-78
pp.93-98
LQE, CPM, ED 2020-11-27
14:50
Online Online Internal quantum efficiency and excitonic stimulated emission properties of AlGaN-based UV-C multiple quantum wells
Hideaki Murotani (NIT, Tokuyama Coll.), Ryohei Tanabe, Keisuke Hisanaga, Akira Hamada, Kanta Beppu (Yamaguchi Univ.), Noritoshi Maeda, M. Ajmal Khan, Masafumi Jo, Hideki Hirayama (RIKEN), Yoichi Yamada (Yamaguchi Univ.) ED2020-23 CPM2020-44 LQE2020-74
Internal quantum efficiency (IQE) and stimulated emission properties of AlGaN-based UV-C multiple quantum wells have bee... [more] ED2020-23 CPM2020-44 LQE2020-74
pp.87-90
CPM, LQE, ED 2019-11-22
12:45
Shizuoka Shizuoka Univ. (Hamamatsu) Progress of UVC-LEDs using DC sputter AlN templates
Yosuke Mogami (RIKEN/Saitama Univ.), Atsushi Osawa, Kazuto Ozaki, Yukitake Tanioka, Atsushi Maeoka (SCREEN), Yuri Itokazu, Syunsuke Kuwaba (RIKEN/Saitama Univ.), Masafumi Jo, Noritoshi Maeda (RIKEN), Hiroyuki Yaguchi (Saitama Univ.), Hideki Hirayama (RIKEN) ED2019-53 CPM2019-72 LQE2019-96
A high-quality AlN substrate or template is required to realize AlGaN-based UVC-LEDs which has a wide range of applicati... [more] ED2019-53 CPM2019-72 LQE2019-96
pp.85-88
LQE 2017-12-15
14:10
Tokyo   [Invited Talk] Recent progress of AlGaN deep-UV LEDs
Hideki Hirayama, Masafumi Jo, Noritoshi Maeda (RIKEN), Yukio Kashima (Marubun) LQE2017-91
AlGaN deep ultraviolet light-emitting diodes (DUV-LEDs) are attracting a great deal of attention, since they have the po... [more] LQE2017-91
pp.21-26
LQE, CPM, ED 2017-12-01
10:55
Aichi Nagoya Inst. tech. Achievement of AlGaN deep-UV LED using photonic crystal(PhC) -- Achievement of high-EQE(10%) AlGaN deep-UV LED using highly-reflective PhC on p-contact layer --
Yukio Kashima (Marubun), Noritoshi Maeda (RIKEN), Eriko Matsuura (Marubun), Masafumi Jo (RIKEN), Takeshi Iwai, Toshiro Morita (TOK), Mitsunori Kokubo, Takaharu Tashiro (TOSHIBA MACHINE), Ryuichiro Kamimura, Yamato Osada (ULVAC), Yuichi Kurashima, Hideki Takagi (AIST), Hideki Hirayama (RIKEN) ED2017-60 CPM2017-103 LQE2017-73
 [more] ED2017-60 CPM2017-103 LQE2017-73
pp.55-60
CPM, LQE, ED 2016-12-13
09:30
Kyoto Kyoto University Growth and optical properties of semipolar AlGaN/AlN quantum wells on m-plane sapphire substrates
Issei Oshima (RIKEN/Saitama Univ.), Masafumi Jo, Noritoshi Maeda (RIKEN), Norihiko Kamata (Saitama Univ.), Hideki Hirayama (RIKEN) ED2016-69 CPM2016-102 LQE2016-85
 [more] ED2016-69 CPM2016-102 LQE2016-85
pp.61-66
ED, LQE, CPM 2015-11-27
13:55
Osaka Osaka City University Media Center Growth and optical properties of semi-polar AlGaN/AlN layers grown on m-plane sapphire substrates
Issei Oshima (Saitama Univ./RIKEN), Masafumi Jo, Noritoshi Maeda (RIKEN), Norihiko Kamata (Saitama Univ.), Hideki Hirayama (RIKEN) ED2015-86 CPM2015-121 LQE2015-118
 [more] ED2015-86 CPM2015-121 LQE2015-118
pp.89-93
LQE, ED, CPM 2014-11-28
11:25
Osaka   Operation of deep UV LED using superlattice p-AlGaN hole-spreading contact layer
Noritoshi Maeda, Masafumi Jo, Hideki Hirayama (RIKEN) ED2014-88 CPM2014-145 LQE2014-116
P-GaN free structure and highly-reflective p-type electrode are required for realizing high light-extraction efficiency ... [more] ED2014-88 CPM2014-145 LQE2014-116
pp.73-76
LQE, ED, CPM 2014-11-28
11:50
Osaka   Deep UV light-emitting diodes containing a p-AlGaN contacting layer with high Al content
Masafumi Jo, Noritoshi Maeda, Hideki Hirayama (RIKEN) ED2014-89 CPM2014-146 LQE2014-117
AlGaN light-emitting diodes (LEDs) have been extensively studied for highly efficient light sources in deep ultraviolet ... [more] ED2014-89 CPM2014-146 LQE2014-117
pp.77-80
CPM, LQE, ED 2013-11-29
13:55
Osaka   Realization of high-efficiency deep-UV LED by using transparent p-AlGaN contact layer
Noritoshi Maeda, Hideki Hirayama (RIKEN) ED2013-83 CPM2013-142 LQE2013-118
The improvement of light-extraction efficiency (LEE) is one of the most important issues for AlGaN-based deep-ultraviole... [more] ED2013-83 CPM2013-142 LQE2013-118
pp.87-90
LQE, ED, CPM 2011-11-18
13:10
Kyoto Katsura Hall,Kyoto Univ. Investigation for chracteristics of AlN growth depending on m- and a-axis oriented off-angle of c-sapphire substrate and fabrication of high-efficiency AlGaN Deep-UV LEDs
Noritoshi Maeda, Hideki Hirayama, Sachie Fujikawa (RIKEN) ED2011-94 CPM2011-143 LQE2011-117
(To be available after the conference date) [more] ED2011-94 CPM2011-143 LQE2011-117
pp.107-112
 Results 1 - 12 of 12  /   
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