title: Heterogeneous integration of gallium nitride light-emitting diodes on diamond and silica by transfer printing.
abstract: We 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.
authors.forename: A J
authors.initials: AJ
authors.lastname: Trindade
authors.forename: B
authors.initials: B
authors.lastname: Guilhabert
authors.forename: E Y
authors.initials: EY
authors.lastname: Xie
authors.forename: R
authors.initials: R
authors.lastname: Ferreira
authors.forename: J J D
authors.initials: JJ
authors.lastname: McKendry
authors.forename: D
authors.initials: D
authors.lastname: Zhu
authors.forename: N
authors.initials: N
authors.lastname: Laurand
authors.forename: E
authors.initials: E
authors.lastname: Gu
authors.forename: D J
authors.initials: DJ
authors.lastname: Wallis
authors.forename: I M
authors.initials: IM
authors.lastname: Watson
authors.forename: C J
authors.initials: CJ
authors.lastname: Humphreys
authors.forename: M D
authors.initials: MD
authors.lastname: Dawson