title: Multiple-exposure colloidal lithography for enhancing light output of GaN-based light-emitting diodes by patterning Ni/Au electrodes.
abstract: Ni/Au electrodes with single, twined and triplet hole array patterns light-emitting diodes have been fabricated by multiple-exposure colloidal lithography. It is found that 45.6%, 83.6% and 15.5% improvement in light output at 350 mA has been achieved by patterning Ni/Au electrodes with single, twined, triplet hole arrays. In addition, patterned Ni/Au LEDs possess much larger view angles than non-patterned ones due to scattering effects of light around the holes, especially for triplet hole array patterned Ni/Au LEDs. Our proposed method for fabricating multiple holes structure would be very promising to improve light output power of LEDs when using advanced electrodes.
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Xiong
authors.forename: Tongbo
authors.initials: T
authors.lastname: Wei
authors.forename: Yonghui
authors.initials: Y
authors.lastname: Zhang
authors.forename: Junxi
authors.initials: J
authors.lastname: Wang
authors.forename: Jinmin
authors.initials: J
authors.lastname: Li