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Open Access Nano Express

On the Morphology, Structure and Field Emission Properties of Silver-Tetracyanoquinodimethane Nanostructures

Chunnuan Ye1*, Kaibo Zheng2, Wenlong You3 and Guorong Chen2*

Author Affiliations

1 College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123, Suzhou, People’s Republic of China

2 Department of Chemistry, Fudan University, 200433, Shanghai, People’s Republic of China

3 School of Physical Science and Technology, Soochow University, 215006, Suzhou, Jiangsu, People’s Republic of China

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Nanoscale Research Letters 2010, 5:1307-1312  doi:10.1007/s11671-010-9643-9

Published: 22 June 2010

Abstract

Silver-tetracyanoquinodimethane(Ag-TCNQ) nanostructured arrays with different morphologies were grown by an organic vapor-transport reaction under different conditions. The field emission properties of nanostructured arrays were studied systematically. Their morphology and crystal structure were characterized by SEM and XRD, respectively. It was found that the field emission properties were strongly dependent on the reaction temperature and the initial Ag film thickness. The lowest turn-on field with 10-nm-thick silver film is about 2.0 V/μm, comparable to that of carbon nanotubes. The film crystal structure and the morphology are contributed to the final emission performance.

Keywords:
Organic semiconductor; Nanostructures; Ag-TCNQ; Field emission