Influence of Silver Incorporation on the Structural and Electrical Properties of Diamond-Like Carbon Thin Films | Zendy

Neeraj Dwivedi | Zendy; Sushil Kumar | Zendy; J. David Carey | Zendy; Ravi Kant Tripathi | Zendy; Hitendra K. Malik | Zendy; M. K. Dalai | Zendy

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Influence of Silver Incorporation on the Structural and Electrical Properties of Diamond-Like Carbon Thin Films

Author(s) -

Neeraj Dwivedi,

Sushil Kumar,

J. David Carey,

Ravi Kant Tripathi,

Hitendra K. Malik,

M. K. Dalai

Publication year - 2013

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/am4003183

Subject(s) - materials science , field electron emission , diamond like carbon , thin film , carbon fibers , layer (electronics) , optoelectronics , carbon film , nanotechnology , diamond , microstructure , electron , composite material , composite number , physics , quantum mechanics

A simple approach is proposed for obtaining low threshold field electron emission from large area diamond-like carbon (DLC) thin films by sandwiching either Ag dots or a thin Ag layer between DLC and nitrogen-containing DLC films. The introduction of silver and nitrogen is found to reduce the threshold field for emission to under 6 V/μm representing a near 46% reduction when compared with unmodified films. The reduction in the threshold field is correlated with the morphology, microstructure, interface, and bonding environment of the films. We find modifications to the structure of the DLC films through promotion of metal-induced sp2 bonding and the introduction of surface asperities, which significantly reduce the value of the threshold field. This can lead to the next-generation, large-area simple and inexpensive field emission devices.

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