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Exploring silver contact morphologies in printed carbon nanotube thin-film transistors

Publication ,  Conference
Cardenas, JA; Upshaw, S; Catenaccr, MJ; Wiley, BJ; Franklin, AD
Published in: Device Research Conference - Conference Digest, DRC
August 20, 2018

Demand for ubiquitous and flexible electronics to facilitate the rapid growth of Internet- of- Things (IoT) technologies has driven the advancement of printed electronics for low-cost and high-throughput manufacturing. The carbon nanotube thin-film transistor (CNT-TFT) is one of the most promising options for printed electronics due to its mechanical flexibility, compatibility with low-temperature fabrication, and relatively high mobility [1]. Meanwhile, Ag nanoparticles remain the most widely used conductive material in printed inks due to their superb dispersion stability, high conductivity, and relatively low cost [2]. However, limited studies have explored the impact of different printed metallic contacts in CNT-TFTs [3], even though the contact interfaces are one of the leading factors limiting performance. In this work, the impact of Ag contact morphology is studied for the first time by fabricating hundreds of CNT-TFTs using an aerosol jet printer to systematically investigate three morphologies (nanoparticle (NP), nanoflake (NF), and nanowire (NW), as seen in Fig. 1) and their impact on device performance. Using what is learned from the contact morphology results, the first CNT-TFTs printed without removal of the substrate from the printer (full 'print-in-place' additive devices) are also demonstrated.

Duke Scholars

Published In

Device Research Conference - Conference Digest, DRC

DOI

ISSN

1548-3770

ISBN

9781538630280

Publication Date

August 20, 2018

Volume

2018-June
 

Citation

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Cardenas, J. A., Upshaw, S., Catenaccr, M. J., Wiley, B. J., & Franklin, A. D. (2018). Exploring silver contact morphologies in printed carbon nanotube thin-film transistors. In Device Research Conference - Conference Digest, DRC (Vol. 2018-June). https://doi.org/10.1109/DRC.2018.8442217
Cardenas, J. A., S. Upshaw, M. J. Catenaccr, B. J. Wiley, and A. D. Franklin. “Exploring silver contact morphologies in printed carbon nanotube thin-film transistors.” In Device Research Conference - Conference Digest, DRC, Vol. 2018-June, 2018. https://doi.org/10.1109/DRC.2018.8442217.
Cardenas JA, Upshaw S, Catenaccr MJ, Wiley BJ, Franklin AD. Exploring silver contact morphologies in printed carbon nanotube thin-film transistors. In: Device Research Conference - Conference Digest, DRC. 2018.
Cardenas, J. A., et al. “Exploring silver contact morphologies in printed carbon nanotube thin-film transistors.” Device Research Conference - Conference Digest, DRC, vol. 2018-June, 2018. Scopus, doi:10.1109/DRC.2018.8442217.
Cardenas JA, Upshaw S, Catenaccr MJ, Wiley BJ, Franklin AD. Exploring silver contact morphologies in printed carbon nanotube thin-film transistors. Device Research Conference - Conference Digest, DRC. 2018.

Published In

Device Research Conference - Conference Digest, DRC

DOI

ISSN

1548-3770

ISBN

9781538630280

Publication Date

August 20, 2018

Volume

2018-June