| Paper Abstract and Keywords |
| Presentation |
2024-01-25 13:35
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.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
The luminescent properties of ZnGa2O4:Cr3+ far-red phosphors were investigated by In addition. In the phosphor powder samples prepared by the solid-phase reaction method, the X-ray diffraction peak shifted to lower angle with increasing the amount of In, confirming the formation of Zn(Ga,In)2O4:Cr3+ mixed crystal. The photoluminescence (PL) intensity also increased by about 1.5 times. Since the intensities of both the Cr3+ direct PL excitation band and the Cr3+ absorption band of the diffuse reflection spectrum increase with In addition, the mixed crystal formation promotes the incorporation of Cr3+ ions into the host crystal lattice, resulting in the improvement in the PL characteristics. On the other hand, in the thin film samples prepared by an electron beam evaporation and annealed at 700℃ for 30 min, the effects of the In addition such as the mixed crystal formation, the improvement in luminescent properties and electrical conductivity were hardly observed. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Far-red phosphor / ZnGa2O4:Cr3+ / indium addition / mixed crystal / plant growth lighting / / / |
| Reference Info. |
ITE Tech. Rep. |
| Paper # |
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| Date of Issue |
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| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IEICE-EID IDY IEE-EDD SID-JC IEIJ-SSL |
| Conference Date |
2024-01-25 - 2024-01-26 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IEICE-EID |
| Conference Code |
2024-01-EID-IDY-EDD-JC-SSL |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Luminescence and electrical properties of far-red ZnGa2O4:Cr3+ posphor thin films |
| Sub Title (in English) |
Improvement in luminescent characteristics by In addition |
| Keyword(1) |
Far-red phosphor |
| Keyword(2) |
ZnGa2O4:Cr3+ |
| Keyword(3) |
indium addition |
| Keyword(4) |
mixed crystal |
| Keyword(5) |
plant growth lighting |
| Keyword(6) |
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| Keyword(7) |
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| 1st Author's Name |
Ryota Hourai |
| 1st Author's Affiliation |
Tottori University (Tottori Univ.) |
| 2nd Author's Name |
Akihisa Yamasaki |
| 2nd Author's Affiliation |
Tottori University (Tottori Univ.) |
| 3rd Author's Name |
Koutoku Ohmi |
| 3rd Author's Affiliation |
Tottori University (Tottori Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2024-01-25 13:35:00 |
| Presentation Time |
5 minutes |
| Registration for |
IEICE-EID |
| Paper # |
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| Volume (vol) |
vol.48 |
| Number (no) |
no.1 |
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