Field Emission Characteristics of SnO₂/CNTs Composites Prepared by Microwave‐Assisted Wet Impregnation

Abstract

The SnO 2 /CNT composites were prepared by microwave-assisted wet impregnation at 60• C. The process was optimized by varying the microwave power and reaction time. Raman analysis showed the typical features of the rutile phase of as-synthesized SnO 2 nanoparticles on CNTs, which was consistent with the results from X-ray diffraction. Enhanced field emission performance was observed for SnO 2 /CNTs composite prepared by a microwave method when compared to pure CNTs and SnO 2 /CNTs composite prepared by conventional wet impregnation. The dependence of emission current density on the electric field followed a FowlerNordheim relationship.

Conjugated polyelectrolyte nano field emission adlayers

“…Various exotic adlayers have been considered to date. [11][12][13][14][15][16][17][18][19][20] However, little has been reported on the use of conjugated polyelectrolytes (CPEs) which are strong contenders for electron emission applications due to their potential for efficient electron injection and unique transport characteristics. 21 Here we report on the use of zwitterionic conjugated polyelectrolytes as a new class of field emission adlayer.…”