Performance and Photovoltaic Response of Polymer-Doped Carbon Nanotube p-n Diodes

被引:35
作者
Abdula, Daner [1 ]
Shim, Moonsub [1 ]
机构
[1] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
关键词
carbon nanotube; diode; p-n; photovoltaic; Raman spectroscopy;
D O I
10.1021/nn800368s
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two terminal abrupt junction diodes are fabricated from single semiconducting carbon nanotubes with simple photopatterned polymer layers defining air-stable p- and n-regions. These intratube diodes show nearly ideal behavior with relatively low series resistance and no sign of Zener breakdown at room temperature. Spatial doping profiles measured by micro-Raman spectroscopy and selective electrochemical gating of the n-region indicate that diode performance depends strongly on relative doping levels. A short circuit current of 1.4 nA with an open circuit voltage of 205 mV are measured when illuminated to saturation.
引用
收藏
页码:2154 / 2159
页数:6
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