| Presentation | 2010-01-28 Improvement in excitation characteristics by Mg codoping in CuAlS_2:Mn, Si red phosphor for near UV excitation Kazuhito Ohashi, Yoshinobu Miyamoto, Koutoku Ohmi, Hisashi Yoshida, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | CuAlS_2:Mn shows a pure red luminescence and has a relatively strong excitatin band in the near-UV wavelength range. The phosphor also shows a slight temperature quenching, therefore it is expected as a proposing red phosphor for near-UV LED excitation. In this study, it has been found that photoluminescence (PL) intensity is significantly improved by Mg codoping, which is thought to act as both charge compensator for Mn^<2+> luminescent centers and relaxation of a lattice destortion induced by Mn incorporatin into CuAlS_2 lattice. Considering a charge compensation system, (Cu,Mg)(Al,Si)S_2:Mn is a proper composition, in which about three times higher PL intensity has been obtained under near-UV excitation compared to only Si codoped CuAlS_2:Mn. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CuAlS_2:Mn / white LEDs / red phosphor / near-uv excitation / Mg doping |
| Paper # | EID2009-62 |
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| Conference Information | |
| Committee | EID |
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| Conference Date | 2010/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electronic Information Displays (EID) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement in excitation characteristics by Mg codoping in CuAlS_2:Mn, Si red phosphor for near UV excitation |
| Sub Title (in English) | |
| Keyword(1) | CuAlS_2:Mn |
| Keyword(2) | white LEDs |
| Keyword(3) | red phosphor |
| Keyword(4) | near-uv excitation |
| Keyword(5) | Mg doping |
| 1st Author's Name | Kazuhito Ohashi |
| 1st Author's Affiliation | Gracuate School of Engineering, Tottori Univ.() |
| 2nd Author's Name | Yoshinobu Miyamoto |
| 2nd Author's Affiliation | Gracuate School of Engineering, Tottori Univ.:Tottori University Electronic Display Research Center |
| 3rd Author's Name | Koutoku Ohmi |
| 3rd Author's Affiliation | Gracuate School of Engineering, Tottori Univ. |
| 4th Author's Name | Hisashi Yoshida |
| 4th Author's Affiliation | NEC Lighting, Ltd. |
| Date | 2010-01-28 |
| Paper # | EID2009-62 |
| Volume (vol) | vol.109 |
| Number (no) | 404 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |