Heterogeneous integration of gallium nitride light-emitting diodes on diamond and silica by transfer printing
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-04-02 |
| Journal | Optics Express |
| Authors | AntĆ³nio JosĆ© Trindade, Benoit Guilhabert, Enyuan Xie, R. Ferreira, Jonathan J. D. McKendry |
| Institutions | University of Strathclyde, University of Cambridge |
| Citations | 66 |
Abstract
Section titled āAbstractāWe report the transfer printing of blue-emitting micron-scale light-emitting diodes (micro-LEDs) onto fused silica and diamond substrates without the use of intermediary adhesion layers. A consistent Van der Waals bond was achieved via liquid capillary action, despite curvature of the LED membranes following release from their native silicon growth substrates. The excellence of diamond as a heat-spreader allowed the printed membrane LEDs to achieve optical power output density of 10 W/cm(2) when operated at a current density of 254 A/cm(2). This high-current-density operation enabled optical data transmission from the LEDs at 400 Mbit/s.