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Directional light extraction enhancement from GaN-based film-transferred photonic crystal light-emitting diodes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lai, Chun-Feng Chao, Chia-Hsin Kuo, Hao-Chung Yen, His-Hsuan Lee, Chia-En Yeh, Wen-Yung |
| Copyright Year | 2009 |
| Abstract | Experimental investigation of the directionality in the far-field pattern and light extraction enhancement in collected cone were performed in GaN-based film-transferred photonic crystal (PhC) light-emitting diodes (FTLEDs). Angular-resolved measurement revealed directional profile and azimuthal anisotropy in the far-field distribution with guided modes extraction. Good agreement according to Bragg's diffraction theory and free photon band structure were achieved. The light enhancement in PhC FTLEDs compared to non-PhC FTLEDs within the collection cone angle was obtained according to measured three-dimensional far-field patterns. In a ±20° collection cone, collected light was enhanced by a factor of ∼2.4 for the collimated PhC FTLED. |
| Starting Page | 123106 |
| Ending Page | 123106 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.3106109 |
| Volume Number | 94 |
| Alternate Webpage(s) | https://ir.nctu.edu.tw/bitstream/11536/7469/1/000264633500056.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.3106109 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
