Remote heteroepitaxy of GaN microrod heterostructures for deformable light-emitting diodes and wafer recycle

Science Advances
Junseok JeongYoung Joon Hong

Abstract

There have been rapidly increasing demands for flexible lighting apparatus, and micrometer-scale light-emitting diodes (LEDs) are regarded as one of the promising lighting sources for deformable device applications. Herein, we demonstrate a method of creating a deformable LED, based on remote heteroepitaxy of GaN microrod (MR) p-n junction arrays on c-Al2O3 wafer across graphene. The use of graphene allows the transfer of MR LED arrays onto a copper plate, and spatially separate MR arrays offer ideal device geometry suitable for deformable LED in various shapes without serious device performance degradation. Moreover, remote heteroepitaxy also allows the wafer to be reused, allowing reproducible production of MR LEDs using a single substrate without noticeable device degradation. The remote heteroepitaxial relation is determined by high-resolution scanning transmission electron microscopy, and the density functional theory simulations clarify how the remote heteroepitaxy is made possible through graphene.

References

Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
May 14, 2009·Nano Letters·Yajie DongCharles M Lieber
Mar 27, 2010·Science·John A RogersYonggang Huang
Apr 10, 2010·Nano Letters·Katsuhiro TomiokaTakashi Fukui
Jun 4, 2011·Advanced Materials·Young Joon HongGyu-Chul Yi
Feb 14, 2012·Nano Letters·Young Joon HongTakashi Fukui
Jul 6, 2013·Scientific Reports·Je-Hyung KimYong-Hoon Cho
Jun 16, 2015·Nature Nanotechnology·Young Duck KimYun Daniel Park
Sep 1, 2015·Nano Letters·Xing DaiMaria Tchernycheva
Jun 23, 2016·ACS Photonics·Nan GuanMaria Tchernycheva
Jun 23, 2016·Nano Letters·Yong-Ho RaZetian Mi
Jul 15, 2016·Nano Letters·Vishnuvarthan KumaresanJean-Christophe Harmand
Oct 10, 2018·Nature Materials·Wei KongJeehwan Kim
Dec 1, 2018·Nanoscale·Junseok JeongYoung Joon Hong
Sep 19, 2019·Nanotechnology·T JournotB Hyot

❮ Previous
Next ❯

Methods Mentioned

BETA
transmission electron microscopy
delamination
scanning electron microscopy
chip
thermal treatment
electron microscopy

Software Mentioned

Vienna ab initio simulation package ( VASP )

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved