High-performance logic circuits using solution-based, low-temperature semiconductors for flexible electronics

Israel Mejia, Ana L. Salas-Villasenor, John W. Murphy, George R. Kunnen, Kurtis D. Cantley, David Allee, Bruce E. Gnade, Manuel A. Quevedo-Lopez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work we demonstrate high performance and low-power n-type inverters using solution-based CdS as the semiconductor in thin film transistors. Our fabrication process consists of five mask levels and a maximum temperature of 150 °C. The CdS is deposited using chemical bath deposition at 70 °C to provide full compatibility with flexible substrates. Isolated TFTs showed mobilities up to 10 cm2/V-s and threshold voltages of approximately 0.5V. Inverters were biased at 1, 3 and 5 V, resulting in maximum gains in the range of 60 at VDD = 3V. The devices and circuits are fully patterned using standard photolithographic techniques that can be used to design more complex circuitry for flexible and large area electronic applications. In addition we used an extraction parameter method for our TFTs that allows the use of regular SPICE simulation software to design and test the circuits. Our simulations are in good agreement with the experimental data for isolated devices and inverters. Other circuits such as NAND gates are also demonstrated.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8730
DOIs
StatePublished - 2013
EventFlexible Electronics - Baltimore, MD, United States
Duration: May 1 2013May 2 2013

Other

OtherFlexible Electronics
CountryUnited States
CityBaltimore, MD
Period5/1/135/2/13

Fingerprint

Flexible electronics
inverters
logic circuits
Logic circuits
Semiconductors
High Performance
Electronics
Logic
Semiconductor materials
Networks (circuits)
electronics
Flexible Substrate
Thin-film Transistor
NAND
Parameter extraction
SPICE
Thin film transistors
Simulation Software
Threshold voltage
threshold voltage

Keywords

  • CdS
  • Flexible circuits
  • High gain inverter
  • Low temperature
  • Solution-based
  • SPICE
  • Thin film transistor

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Mejia, I., Salas-Villasenor, A. L., Murphy, J. W., Kunnen, G. R., Cantley, K. D., Allee, D., ... Quevedo-Lopez, M. A. (2013). High-performance logic circuits using solution-based, low-temperature semiconductors for flexible electronics. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8730). [873003] https://doi.org/10.1117/12.2015996

High-performance logic circuits using solution-based, low-temperature semiconductors for flexible electronics. / Mejia, Israel; Salas-Villasenor, Ana L.; Murphy, John W.; Kunnen, George R.; Cantley, Kurtis D.; Allee, David; Gnade, Bruce E.; Quevedo-Lopez, Manuel A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8730 2013. 873003.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mejia, I, Salas-Villasenor, AL, Murphy, JW, Kunnen, GR, Cantley, KD, Allee, D, Gnade, BE & Quevedo-Lopez, MA 2013, High-performance logic circuits using solution-based, low-temperature semiconductors for flexible electronics. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8730, 873003, Flexible Electronics, Baltimore, MD, United States, 5/1/13. https://doi.org/10.1117/12.2015996
Mejia I, Salas-Villasenor AL, Murphy JW, Kunnen GR, Cantley KD, Allee D et al. High-performance logic circuits using solution-based, low-temperature semiconductors for flexible electronics. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8730. 2013. 873003 https://doi.org/10.1117/12.2015996
Mejia, Israel ; Salas-Villasenor, Ana L. ; Murphy, John W. ; Kunnen, George R. ; Cantley, Kurtis D. ; Allee, David ; Gnade, Bruce E. ; Quevedo-Lopez, Manuel A. / High-performance logic circuits using solution-based, low-temperature semiconductors for flexible electronics. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8730 2013.
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