Ultrahigh Thermal Conductive yet Superflexible Graphene Films

Advanced Materials
Li PengChao Gao

Abstract

Electrical devices generate heat at work. The heat should be transferred away immediately by a thermal manager to keep proper functions, especially for high-frequency apparatuses. Besides high thermal conductivity (K), the thermal manager material requires good foldability for the next generation flexible electronics. Unfortunately, metals have satisfactory ductility but inferior K (≤429 W m-1 K-1 ), and highly thermal-conductive nonmetallic materials are generally brittle. Therefore, fabricating a foldable macroscopic material with a prominent K is still under challenge. This study solves the problem by folding atomic thin graphene into microfolds. The debris-free giant graphene sheets endow graphene film (GF) with a high K of 1940 ± 113 W m-1 K-1 . Simultaneously, the microfolds render GF superflexible with a high fracture elongation up to 16%, enabling it more than 6000 cycles of ultimate folding. The large-area multifunctional GFs can be easily integrated into high-power flexible devices for highly efficient thermal management.

References

Jun 14, 1993·Physical Review Letters·L WeiW F Banholzer
Aug 16, 2002·Nature·Zhengzhong Shao, Fritz Vollrath
Oct 23, 2004·Science·K S NovoselovA A Firsov
Feb 13, 2007·Nature Materials·Simone PisanaFrancesco Mauri
Jul 27, 2007·Nature·Dmitriy A DikinRodney S Ruoff
Sep 18, 2007·Science·F MiaoC N Lau
Feb 21, 2008·Nano Letters·Alexander A BalandinChun Ning Lau
Aug 8, 2008·Nature Nanotechnology·Xu DuEva Y Andrei
Mar 25, 2011·Angewandte Chemie·Jonathan P RourkeNeil R Wilson
Apr 8, 2011·Physical Review Letters·J KotakoskiJ C Meyer
Jul 23, 2011·Nature Materials·Alexander A Balandin
Sep 8, 2011·Nanotechnology·Yongping ZhengZhigao Huang
Jan 11, 2012·Nature Materials·Shanshan ChenRodney S Ruoff
Jan 5, 2013·Chemical Reviews·Mingsheng XuHongzheng Chen
Apr 5, 2013·Nature Nanotechnology·Andrea C Ferrari, Denis M Basko
Apr 17, 2014·Nature Communications·Xiangfan XuBarbaros Özyilmaz
May 13, 2014·Advanced Materials·Guoqing XinJie Lian
Dec 18, 2014·Nature Communications·Deji AkinwandeJames Hone
Jan 29, 2016·Nature Communications·Ashivni Shekhawat, Robert O Ritchie
Dec 3, 2016·Nature Communications·Zheng LiChao Gao
Dec 21, 2016·ACS Nano·Xianjue ChenRodney S Ruoff

❮ Previous
Next ❯

Citations

May 8, 2018·Proceedings of the National Academy of Sciences of the United States of America·Sijie WanRay H Baughman
Jul 20, 2018·Advanced Materials·Sijie WanRay H Baughman
Feb 10, 2019·Nanomaterials·Jingang WangMengtao Sun
Apr 4, 2020·Advanced Materials·Gyoung Hwa JeongSang Ouk Kim
Sep 13, 2019·Nature Communications·Yanqiu JiangChao Gao
Jun 6, 2019·Nature Communications·Yeye WenChun Li
Nov 6, 2018·Nano-micro Letters·Chen ChenChao Gao
Aug 14, 2019·Advanced Materials·Bo FangChao Gao
Mar 30, 2021·ACS Applied Materials & Interfaces·Seyyed Alireza MirkhaniChong Min Koo
Nov 4, 2020·ACS Applied Materials & Interfaces·Edward J BarronMichael D Bartlett

❮ Previous
Next ❯

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.