Additive roll printing activated cold welding of 2D crystals and 1D nanowires layers for flexible transparent conductor and planer energy storage

Qiong Nian, Mojib Saei, Yaowu Hu, Biwei Deng, Shengyu Jin, Gary J. Cheng

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Large scale integration of 2D crystals and metal nanowires (NWs) with low junction resistance has been a long time challenge for functional structures. Herein, roll to roll printing technique was utilized to directly produce graphene oxide (GO) nanoplatelets stack laminated with metal NWs. This 2D/1D laminated structure activates high pressure between AgNWs, enables localized fusion, and opens a new way to tackle with local nanojunction resistance. Molecular dynamic simulations reveal that this cold nanojoining originates from high localized pressure activated isolated metal atoms, which possess high mobility, flow over nanojunction and recrystallize to form nanojoints. Compared with bare AgNWs network, the GO laminated counterparts achieve excellent performance (17Ω/sq, 93%@λ=550nm), which enlightens optoelectronics applications. The cross nanowire junction resistance decrease is verified by classical percolation theory and experimental characterizations. Haze measurements show that the scattering is significantly reduced. Laminated structure has been engineered layer by layer to accomplish quasi-3D hybrid film, which demonstrated application in flexible supercapacitors with high specific capacitance of 109 F g−1. This hybrid 2D/1D nanomaterial thin film also demonstrated excellent stability during cyclic foldability, stretchability, high temperature and oxidation tests. These investigations provide insight for layered manufacturing of 2D crystals/1D NWs structure and quasi-3D hybrid film for energy storage applications.

Original languageEnglish (US)
Pages (from-to)531-545
Number of pages15
JournalExtreme Mechanics Letters
Volume9
DOIs
StatePublished - Dec 1 2016
Externally publishedYes

Fingerprint

Cold welding
Energy storage
Nanowires
Printing
Crystals
Graphite
Metals
Oxides
Graphene
Layered manufacturing
LSI circuits
Nanostructured materials
Optoelectronic devices
Molecular dynamics
Capacitance
Fusion reactions
Scattering
Thin films
Atoms
Oxidation

Keywords

  • 2D crystals
  • Cold nanojoining
  • Roll printing
  • Self-integration
  • Silver nanowire

ASJC Scopus subject areas

  • Bioengineering
  • Chemical Engineering (miscellaneous)
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Additive roll printing activated cold welding of 2D crystals and 1D nanowires layers for flexible transparent conductor and planer energy storage. / Nian, Qiong; Saei, Mojib; Hu, Yaowu; Deng, Biwei; Jin, Shengyu; Cheng, Gary J.

In: Extreme Mechanics Letters, Vol. 9, 01.12.2016, p. 531-545.

Research output: Contribution to journalArticle

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