High-performance CdS:P nanoribbon field-effect transistors constructed with high-κ dielectric and top-gate geometry

High-performance field-effect transistors (FETs) based on single phosphorus-doped n-type CdS nanoribbon with high-κ HfO2 dielectric and top-gate geometry were constructed. In contrast to the nano-FETs that were fabricated on SiO2/Si substrate with back-gate device configuration, the top-gate FETs exhibit a substantial improvement in performances, i.e., work voltage was reduced to a small value of within ±5 V, the subthreshold swing was reduced to 200 mV/dec and the Ion/Ioff ratio was increased by about six orders of magnitude. The top-gate CdS:P nano-FET shows high sensitivity upon light irradiation, revealing that the top-gate FETs are promising candidates for nanoelectronic and optoelectronic applications.

[1]  Jong-Ho Lee,et al.  Comparative Study of Electrical Instabilities in Top-Gate InGaZnO thin Film Transistors with Al2O3 and Al2O3/SiNx Gate Dielectrics , 2009 .

[2]  Changze Liu,et al.  High-performance CdS nanobelt field-effect transistors with high-κ HfO2 top-gate dielectrics , 2009 .

[3]  J. H. Kim,et al.  Comparison between the electrical properties of ZnO nanowires based field effect transistors fabricated by back- and top-gate approaches. , 2008, Journal of nanoscience and nanotechnology.

[4]  Yan Li,et al.  High-performance n-type carbon nanotube field-effect transistors with estimated sub-10-ps gate delay , 2008 .

[5]  Zhong Lin Wang,et al.  High-performance pentacene field-effect transistors using Al2O3 gate dielectrics prepared by atomic layer deposition (ALD) , 2007 .

[6]  Shui-Tong Lee,et al.  Photoresponse Properties of CdSe Single‐Nanoribbon Photodetectors , 2007 .

[7]  Cesare Soci,et al.  Rational synthesis of p-type zinc oxide nanowire arrays using simple chemical vapor deposition. , 2007, Nano letters.

[8]  Shui-Tong Lee,et al.  Transport properties of single-crystal CdS nanoribbons , 2006 .

[9]  Charles M. Lieber,et al.  Semiconductor nanowires: optics and optoelectronics , 2006 .

[10]  Shui-Tong Lee,et al.  Single-crystal CdSe nanoribbon field-effect transistors and photoelectric applications , 2006 .

[11]  Zhiyong Fan,et al.  High-performance ZnO nanowire field effect transistors , 2006 .

[12]  S. T. Lee,et al.  Photoconductive characteristics of single-crystal CdS nanoribbons. , 2006, Nano letters.

[13]  Mark S. Lundstrom,et al.  High-κ dielectrics for advanced carbon-nanotube transistors and logic gates , 2002 .

[14]  Charles M. Lieber,et al.  High Performance Silicon Nanowire Field Effect Transistors , 2003 .