One-Dimensional and Two-Dimensional ZnO Nanostructured Materials on a Plastic Substrate and Their Field Emission Properties | Zendy

Debabrata Pradhan | Zendy; Mukul Kumar | Zendy; Yukio Ando | Zendy; K. T. Leung | Zendy

Open Access

One-Dimensional and Two-Dimensional ZnO Nanostructured Materials on a Plastic Substrate and Their Field Emission Properties

Author(s) -

Debabrata Pradhan,

Mukul Kumar,

Yukio Ando,

K. T. Leung

Publication year - 2008

Publication title -

the journal of physical chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.401

H-Index - 289

eISSN - 1932-7455

pISSN - 1932-7447

DOI - 10.1021/jp800799b

Subject(s) - nanopillar , materials science , field electron emission , substrate (aquarium) , current density , nanotechnology , electric field , optoelectronics , nanostructure , polyester , current (fluid) , composite material , electrical engineering , oceanography , physics , engineering , quantum mechanics , geology , electron

One-dimensional ZnO nanopillars of diameter 80−120 nm and two-dimensional nanowalls of thickness 100−300 nm are electrochemically grown at 70 °C on a flexible polyester substrate. The low turn-on electric fields measured at a current density of 1 μA/cm2 for nanopillars (1.2 V/μm) and nanowalls (2.2 V/μm) illustrate their superior field emission properties to most of the reported ZnO nanostructures. The present method of direct electrodeposition of ZnO on plastic without the need of template or catalyst offers a low-cost technique for fabricating field emission devices on flexible substrates for large-area display and other technologies.

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