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Individually-addressable flip-chip AlInGaN micropixelated light emitting diode arrays with high continuous and nanosecond output power.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, H. X. Massoubre, David Mckendry, Jean Gong, Zhijie Guilhabert, Benoit Griffin, C. Gu, Erlong Jessop, Paul Girkin, John M. Dawson, Martin D. |
| Copyright Year | 2008 |
| Abstract | Micropixelated blue (470 nm) and ultraviolet (370 nm) AlInGaN light emitting diode ('micro-LED') arrays have been fabricated in flip-chip format with different pixel diameters (72 microm and 30 microm at, respectively, 100 and 278 pixels/mm(2)). Each micro-LED pixel can be individually-addressed and the devices possess a specially designed n-common contact incorporated to ensure uniform current injection and consequently uniform light emission across the array. The flip-chip micro-LEDs show, per pixel, high continuous output intensity of up to 0.55 microW/microm(2) (55 W/cm(2)) at an injection current density of 10 kA/cm(2) and can sustain continuous injection current densities of up to 12 kA/cm(2) before breakdown. We also demonstrate that nanosecond pulsed output operation of these devices with per pixel onaxis average peak intensity up to 2.9 microW/microm(2) (corresponding to energy of 45pJ per 22ns optical pulse) can be achieved. We investigate the pertinent performance characteristics of these arrays for micro-projection applications, including the prospect of integrated optical pumping of organic semiconductor lasers. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OE.16.009918 |
| PubMed reference number | 18575561 |
| Journal | Medline |
| Volume Number | 16 |
| Issue Number | 13 |
| Alternate Webpage(s) | https://research-repository.griffith.edu.au/bitstream/handle/10072/51714/86117_1.pdf?isAllowed=y&sequence=1 |
| Alternate Webpage(s) | https://research-repository.griffith.edu.au/bitstream/handle/10072/51714/86117_1.pdf?sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.1364/OE.16.009918 |
| Journal | Optics express |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
