| contributor author | Jiun Pyng You | |
| contributor author | Yeong-Her Lin | |
| contributor author | Nguyen T. Tran | |
| contributor author | Frank G. Shi | |
| date accessioned | 2017-05-09T00:37:13Z | |
| date available | 2017-05-09T00:37:13Z | |
| date copyright | September, 2010 | |
| date issued | 2010 | |
| identifier issn | 1528-9044 | |
| identifier other | JEPAE4-26306#031010_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/142952 | |
| description abstract | The thermal and optical characteristics of phosphor converted white light-emitting diodes (LEDs) with different phosphor concentrations ranging from 4 wt % to 13 wt % are investigated. The light output of LEDs with higher phosphor concentration is found to have larger degradation in constant current compared with pulse current than that with lower phosphor concentration. In addition, the junction temperatures of phosphor converted white LEDs raise with increasing phosphor concentration, so that the decreased phosphor conversion efficiency is observed both in pulse and constant current modes. The physical mechanisms for these observations are discussed. This study elucidates the phosphor dependent optical and thermal behavior of phosphor converted white LEDs. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Phosphor Concentration Effects on Optothermal Characteristics of Phosphor Converted White Light-Emitting Diodes | |
| type | Journal Paper | |
| journal volume | 132 | |
| journal issue | 3 | |
| journal title | Journal of Electronic Packaging | |
| identifier doi | 10.1115/1.4002298 | |
| journal fristpage | 31010 | |
| identifier eissn | 1043-7398 | |
| keywords | Temperature | |
| keywords | Junctions | |
| keywords | Phosphors AND Light-emitting diodes | |
| tree | Journal of Electronic Packaging:;2010:;volume( 132 ):;issue: 003 | |
| contenttype | Fulltext | |
