On the Morphology, Structure and Field Emission Properties of Silver-Tetracyanoquinodimethane Nanostructures
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
Nanoscale Research Letters 2010, 5:1307-1312 doi:10.1007/s11671-010-9643-9Published: 22 June 2010
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.