Realization of phosphor free white LED for lighting
| Project/Area Number |
24686003
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Meijo University |
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Principal Investigator |
IWAYA Motoaki 名城大学, 理工学部, 准教授 (40367735)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥25,350,000 (Direct Cost: ¥19,500,000、Indirect Cost: ¥5,850,000)
Fiscal Year 2014: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2013: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2012: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | 白色LED / 貼りあわせ技術 / プラズモン / ナノ構造 / 光取り出し効率 / 緑色LED / 貼り合わせ技術 / その場観察 / GaInN / ITO / 基板剥離 / GaN / 多層膜反射鏡 / LED / Moth-eye構造 / トンネル接合 / 貼り合わせ / ブロードスペクトル / ナノ金属 / アンチモン / レーザ剥離技術 / 不純物の添加 / ナノ粒子 |
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| Outline of Final Research Achievements |
In this study, we examined for the realization of phosphor-free nitride semiconductor-based white light-emitting diodes (LED). In order to realize these devices, we examined as follows,
1. Increase of luminescence efficiency of nitride-based green LED due to a plasmon effect by using an Ag fine particles. 2. We confirmed that moth-eye structure (nano-structure) and the multilayer reflector have realized the increase of light extraction efficiency. 3. We developed the wafer bonding technology with direct and using ITO light transparent electrode by ion irradiation.
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Report
(4 results)
Research Products
(98 results)
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[Presentation] Stable Balance of Emission Intensities from Two Active Regions in Nitride Semiconductor-Based Light Emitting Diodes2013
Author(s)
Kenjo Matsui, Koji Yamashita, Mitsuru Kaga, Takatoshi Morita, Yuka Kuwano, Tomoyuki Suzuki, Tetsuya Takeuchi, Satoshi Kamiyama, Motoaki Iwaya, and Isamu Akasaki
Organizer
10th International Conference of Nitride Semiconductors
Place of Presentation
Washington DC, USA
Related Report
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[Presentation] Advantages of the Moth-Eye Patterned Sapphire Substrate for the High Perfortnance Nitride Based LEDs2013
Author(s)
Toshiyuki Kondo, Tsukasa Kitano, Atsushi Suzuki, Midori Mori, Koichi Naniwae, Motoaki Iwaya, Tetsuya Takeuchi, Satoshi Kamiyama, and Isamu Akasaki
Organizer
10th International Conference of Nitride Semiconductors, Washington DC
Place of Presentation
Washington DC, USA
Related Report
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[Presentation] Fabrication of moth-eye patterned sapphire substrate (MPSS) and influence of height of corns on the performance of blue LEDs on MPSS2013
Author(s)
S. Mizutani, S. Nakashima, M. Iwaya. T. Takeuchi, S. Kamiyama, I. Akasaki, T. Kondo, F. Teramae, A. Suzuki, T. Kitano, M. Mori, M. Matsubara
Organizer
SPIE Photonic west 2013
Place of Presentation
San Francisco, USA
Related Report
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