Beyond solid-state lighting: Miniaturization, hybrid integration, and applications of GaN nano-and micro-LEDs

authored by: Hutomo Suryo Wasisto, Joan Daniel Prades, Jan Gülink, Andreas Waag
Abstract: Gallium nitride (GaN) light-emitting-diode (LED) technology has been the revolution in modern lighting. In the last decade, a huge global market of efficient, long-lasting, and ubiquitous white light sources has developed around the inception of the Nobel-prize-winning blue GaN LEDs. Today, GaN optoelectronics is developing beyond solid-state lighting, leading to new and innovative devices, e.g., for microdisplays, being the core technology for future augmented reality and visualization, as well as point light sources for optical excitation in communications, imaging, and sensing. This explosion of applications is driven by two main directions: the ability to produce very small GaN LEDs (micro-LEDs and nano-LEDs) with high efficiency and across large areas, in combination with the possibility to merge optoelectronic-grade GaN micro-LEDs with silicon microelectronics in a hybrid approach. GaN LED technology is now even spreading into the realm of display technology, which has been occupied by organic LEDs and liquid crystal displays for decades. In this review, the technological transition toward GaN micro-and nanodevices beyond lighting is discussed including an up-to-date overview on the state of the art.
External Organisation(s): Technische Universität Braunschweig
Universitat de Barcelona
Type: Review article
Journal: Applied physics reviews
Volume: 6
ISSN: 1931-9401
Publication date: 12.2019
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1063/1.5096322 (Access: Open)

BibTeX

@article{9881227859f040498b13f1406e4dff3d,
title = "Beyond solid-state lighting: Miniaturization, hybrid integration, and applications of GaN nano-and micro-LEDs",
abstract = "Gallium nitride (GaN) light-emitting-diode (LED) technology has been the revolution in modern lighting. In the last decade, a huge global market of efficient, long-lasting, and ubiquitous white light sources has developed around the inception of the Nobel-prize-winning blue GaN LEDs. Today, GaN optoelectronics is developing beyond solid-state lighting, leading to new and innovative devices, e.g., for microdisplays, being the core technology for future augmented reality and visualization, as well as point light sources for optical excitation in communications, imaging, and sensing. This explosion of applications is driven by two main directions: the ability to produce very small GaN LEDs (micro-LEDs and nano-LEDs) with high efficiency and across large areas, in combination with the possibility to merge optoelectronic-grade GaN micro-LEDs with silicon microelectronics in a hybrid approach. GaN LED technology is now even spreading into the realm of display technology, which has been occupied by organic LEDs and liquid crystal displays for decades. In this review, the technological transition toward GaN micro-and nanodevices beyond lighting is discussed including an up-to-date overview on the state of the art.",
author = "Wasisto, {Hutomo Suryo} and Prades, {Joan Daniel} and Jan G{\"u}link and Andreas Waag",
note = "Publisher Copyright: {\textcopyright} 2019 Author(s).",
year = "2019",
month = dec,
doi = "10.1063/1.5096322",
language = "English",
volume = "6",
journal = "Applied physics reviews",
issn = "1931-9401",
publisher = "AIP Publishing LLC",
number = "4",
}