title: InGaN light-emitting diode stripes with reduced luminous exitance.
abstract: InGaN light-emitting diodes of stripe geometries have been demonstrated. The elongated geometry facilitates light spreading in the longitudinal direction. The chips are further shaped by laser-micromachining to have partially-inclined sidewalls. The light extraction efficiencies of such 3D chip geometries are enhanced by ~12% (~8% according to ray-trace simulations), leading to a reduction of junction temperatures. The effective emission area is also increased four times compared to a cubic chip. The stripe LEDs are thus more efficient emitters with reduced luminous exitance, making them more suitable for a wide range of lighting applications.
authors.forename: W S
authors.initials: WS
authors.lastname: Cheung
authors.forename: Y F
authors.initials: YF
authors.lastname: Cheung
authors.forename: H T
authors.initials: HT
authors.lastname: Chen
authors.forename: R S Y
authors.initials: RS
authors.lastname: Hui
authors.forename: E
authors.initials: E
authors.lastname: Waffenschmidt
authors.forename: H W
authors.initials: HW
authors.lastname: Choi