Large-scale complementary macroelectronics using hybrid integration of carbon nanotubes and IGZO thin-film transistors

Haitian Chen, Yu Cao, Jialu Zhang and Chongwu Zhou ()
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Haitian Chen: University of Southern California
Yu Cao: University of Southern California
Jialu Zhang: University of Southern California
Chongwu Zhou: University of Southern California

Nature Communications, 2014, vol. 5, issue 1, 1-12

Abstract: Abstract Carbon nanotubes and metal oxide semiconductors have emerged as important materials for p-type and n-type thin-film transistors, respectively; however, realizing sophisticated macroelectronics operating in complementary mode has been challenging due to the difficulty in making n-type carbon nanotube transistors and p-type metal oxide transistors. Here we report a hybrid integration of p-type carbon nanotube and n-type indium–gallium–zinc-oxide thin-film transistors to achieve large-scale (>1,000 transistors for 501-stage ring oscillators) complementary macroelectronic circuits on both rigid and flexible substrates. This approach of hybrid integration allows us to combine the strength of p-type carbon nanotube and n-type indium–gallium–zinc-oxide thin-film transistors, and offers high device yield and low device variation. Based on this approach, we report the successful demonstration of various logic gates (inverter, NAND and NOR gates), ring oscillators (from 51 stages to 501 stages) and dynamic logic circuits (dynamic inverter, NAND and NOR gates).

Date: 2014
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DOI: 10.1038/ncomms5097

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