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- Publisher Website: 10.1109/LPT.2013.2238621
- Scopus: eid_2-s2.0-84873319812
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Article: Optical and thermal analyses of thin-film hexagonal micro-mesh light-emitting diodes
| Title | Optical and thermal analyses of thin-film hexagonal micro-mesh light-emitting diodes |
|---|---|
| Authors | |
| Keywords | thin film light extraction Light-emitting diodes (LEDs) |
| Issue Date | 2013 |
| Citation | IEEE Photonics Technology Letters, 2013, v. 25, n. 4, p. 374-377 How to Cite? |
| Abstract | Vertical thin-film light-emitting diodes (LEDs) with integrated micro-mesh arrays are reported. By removing the sapphire substrate through laser lift-off, vertical current conduction becomes possible, improving current spreading capability and thus electrical properties. Compared with the as-grown device, the thin-film micro-mesh LEDs emits 61% more optical power, attributed to enhanced light extraction through the micro-mesh, evidence of which is provided by confocal imaging. At 100 mA, the enhancement factor rises to > 100%, attributed to low junction temperatures due to efficient heat conduction as verified by infrared thermometric imaging. © 1989-2012 IEEE. |
| Persistent Identifier | http://hdl.handle.net/10722/225052 |
| ISSN | 2023 Impact Factor: 2.3 2023 SCImago Journal Rankings: 0.684 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Li, Kwai Hei | - |
| dc.contributor.author | Cheung, Yuk Fai | - |
| dc.contributor.author | Zhang, Qian | - |
| dc.contributor.author | Choi, Hoi Wai | - |
| dc.date.accessioned | 2016-04-18T11:16:38Z | - |
| dc.date.available | 2016-04-18T11:16:38Z | - |
| dc.date.issued | 2013 | - |
| dc.identifier.citation | IEEE Photonics Technology Letters, 2013, v. 25, n. 4, p. 374-377 | - |
| dc.identifier.issn | 1041-1135 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/225052 | - |
| dc.description.abstract | Vertical thin-film light-emitting diodes (LEDs) with integrated micro-mesh arrays are reported. By removing the sapphire substrate through laser lift-off, vertical current conduction becomes possible, improving current spreading capability and thus electrical properties. Compared with the as-grown device, the thin-film micro-mesh LEDs emits 61% more optical power, attributed to enhanced light extraction through the micro-mesh, evidence of which is provided by confocal imaging. At 100 mA, the enhancement factor rises to > 100%, attributed to low junction temperatures due to efficient heat conduction as verified by infrared thermometric imaging. © 1989-2012 IEEE. | - |
| dc.language | eng | - |
| dc.relation.ispartof | IEEE Photonics Technology Letters | - |
| dc.subject | thin film | - |
| dc.subject | light extraction | - |
| dc.subject | Light-emitting diodes (LEDs) | - |
| dc.title | Optical and thermal analyses of thin-film hexagonal micro-mesh light-emitting diodes | - |
| dc.type | Article | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1109/LPT.2013.2238621 | - |
| dc.identifier.scopus | eid_2-s2.0-84873319812 | - |
| dc.identifier.hkuros | 221361 | - |
| dc.identifier.volume | 25 | - |
| dc.identifier.issue | 4 | - |
| dc.identifier.spage | 374 | - |
| dc.identifier.epage | 377 | - |
| dc.identifier.isi | WOS:000314684400016 | - |
| dc.identifier.issnl | 1041-1135 | - |