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Issue 27, 2018
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Optical-reconfigurable carbon nanotube and indium-tin-oxide complementary thin-film transistor logic gates

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Abstract

Optically transparent thin-film transistors (TFTs) have recently attracted significant attention for a new generation of transparent electronics where p- and n-channel transistors form the basic building block for complementary analog and digital integrated circuits (ICs). This paper reports a hybrid integration of p-channel carbon nanotube (CNT) and n-channel junctionless indium-tin-oxide (ITO) TFTs using a simple and cost-effective shadow mask-assisted fabrication process. The fabricated devices exhibit a high transmittance of ∼90% in the visible light region and function as inverters, NAND and NOR gates. More interestingly, distinct optoelectronic responses of the CNT- and ITO-TFTs to ultraviolet light have been clearly observed. In addition to conventional electrically gated logic operations, simple optical-reconfigurable logic operations have been realized with hybrid CNT/ITO-TFT based logic gates. The results suggest that introducing optical-modulation to the logic gates could increase the functionalities compared with the traditional electrically driven counterparts.

Graphical abstract: Optical-reconfigurable carbon nanotube and indium-tin-oxide complementary thin-film transistor logic gates

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Publication details

The article was received on 15 Feb 2018, accepted on 09 Jun 2018 and first published on 11 Jun 2018


Article type: Paper
DOI: 10.1039/C8NR01358F
Citation: Nanoscale, 2018,10, 13122-13129
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    Optical-reconfigurable carbon nanotube and indium-tin-oxide complementary thin-film transistor logic gates

    J. Zou, K. Zhang, W. Cai, T. Chen, A. Nathan and Q. Zhang, Nanoscale, 2018, 10, 13122
    DOI: 10.1039/C8NR01358F

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