Fabrication of controllable and stable In₂O₃ nanowire transistors using an octadecylphosphonic acid self-assembled monolayer

Nanotechnology
Taekyung LimSanghyun Ju

Abstract

The controllability and stability of nanowire transistor characteristics are essential for the development of low-noise and fast-switching nano-electronic devices. In this study, the positive shift of threshold voltage and the improvement of interface quality on In2O3 nanowire transistors were simultaneously achieved by using octadecylphosphonic acid (OD-PA) self-assembly. Following the chemical bond of OD-PA molecules on the surface of In2O3 nanowires, the threshold voltage was positively shifted to 2.95 V, and the noise amplitude decreased to approximately 87.5%. The results suggest that an OD-PA self-assembled monolayer can be used to manipulate and stabilize the transistor characteristics of nanowire-based memory and display devices that require high-sensitivity, low-noise, and fast-response.

References

Apr 27, 2007·Journal of the American Chemical Society·Qin KuangLansun Zheng
Oct 15, 2008·Physical Review Letters·P D C KingC F McConville
Nov 1, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·C G AllenR T Collins

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