In this thesis , we used organic phosphors 10-(2-benzothiazolyl) -1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H,11Hbenzo[l]-pyrano[6,7,8-ij]inolizin-11- one (C545T) and 10-(2-benzothiazolyl)- 1,3,3,7,7-pentametquhyl-2, 3, 6,7-tetrahydro-1H,5H,11H-benzo[l]-pyrano[6,7,8-ij]-quinolizin-11-one(C-545P) ,
by mixed method to package for LED.
First , we used C545T and C545P with different concentration of Silicone ,to find the best mixed ratios. Organic C545T and C545P were proposed to be
the candidate of the green phosphor. The emitting peaks of C545P and C545T were 496 nm and 500 nm measured by photoluminescence, respectively.
Organic green phosphors were mixed with silicone with different concentration.The optimal mixed weight ratio of phosphor to silicone were 1:500 and 1:300 for C545P and C545T,respectively.
Second, we used InGaN/GaN multi-quantum well(MQW) Blue chip toexcite Organic phosphors were mixed with silicone with different concentration
to fabricated device. With an injected current 20 mA ,we obtained the luminous efficiency was 79 lm/W , CIE coordinate at (0.33, 0.60) of packaged device C545T @ 1:500 ,and then the luminous efficiency was 68 lm/W , CIE coordinate at (0.33, 0.60) of package device C545P @1:300.Compared with commercial InGaN green LED , we find mixed organic phosphors packaged devices of luminous flux and luminous efficiency and have improved. The best mixed at 1:500 packaged device of C545T and silicone, and luminous efficiency increase 1/3.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0725108-181342 |
| Date | 25 July 2008 |
| Creators | Chen, Hsin-Nan |
| Contributors | Chun-Liang Lin, Ann-Kuo Chu, Yao-Tsung Yeh, Yan-Kuin Su, Wen-Yao Huang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725108-181342 |
| Rights | not_available, Copyright information available at source archive |
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