Scholars@Duke
Steven Noyce

Steven Noyce

Adjunct Assistant Professor in the Department of Electrical and Computer Engineering
Electrical and Computer Engineering
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Selected Publications

Addressing Signal Drift and Screening for Detection of Biomarkers with Carbon Nanotube Transistors.

Journal Article ACS nano · February 2024 Electrical biosensors, including transistor-based devices (i.e., BioFETs), have the potential to offer versatile biomarker detection in a simple, low-cost, scalable, and point-of-care manner. Semiconducting carbon nanotubes (CNTs) are among the most explor ... Full text Cite

Fully printed prothrombin time sensor for point-of-care testing.

Journal Article Biosens Bioelectron · January 15, 2021 With an increasing number of patients relying on blood thinners to treat medical conditions, there is a rising need for rapid, low-cost, portable testing of blood coagulation time or prothrombin time (PT). Current methods for measuring PT require regular v ... Full text Link to item Cite

Understanding and Mapping Sensitivity in MoS2 Field-Effect-Transistor-Based Sensors.

Journal Article ACS nano · September 2020 Sensors based on two-dimensional (2D) field-effect transistors (FETs) are extremely sensitive and can detect charged analytes with attomolar limits of detection (LOD). Despite some impressive LODs, the operating mechanisms and factors that determine the si ... Full text Cite

Capping Layers to Improve the Electrical Stress Stability of MoS2 Transistors.

Journal Article ACS applied materials & interfaces · August 2020 Two-dimensional (2D) materials offer exciting possibilities for numerous applications, including next-generation sensors and field-effect transistors (FETs). With their atomically thin form factor, it is evident that molecular activity at the interfaces of ... Full text Cite

Carbon nanotube electronics for IoT sensors

Journal Article Nano Futures · January 1, 2020 The Internet of Things (IoT) is the concept of a ubiquitous computing ecosystem in which electronics of custom form factors are seamlessly embedded into everyday objects. At the heart of the IoT are electronic sensors capable of detecting physical/environm ... Full text Cite

Immunity to Contact Scaling in MoS2 Transistors Using in Situ Edge Contacts.

Journal Article Nano letters · August 2019 Atomically thin two-dimensional (2D) materials are promising candidates for sub-10 nm transistor channels due to their ultrathin body thickness, which results in strong electrostatic gate control. Properly scaling a transistor technology requires reducing ... Full text Cite

Silver nanowire inks for direct-write electronic tattoo applications.

Journal Article Nanoscale · August 2019 Room-temperature printing of conductive traces has the potential to facilitate the direct writing of electronic tattoos and other medical devices onto biological tissue, such as human skin. However, in order to achieve sufficient electrical performance, th ... Full text Cite

Convergent ion beam alteration of 2D materials and metal-2D interfaces

Journal Article 2D Materials · June 6, 2019 Tailoring the properties of two-dimensional (2D) crystals is important for both understanding the material behavior and exploring new functionality. Here we demonstrate the alteration of MoS2 and metal-MoS2 interfaces using a convergent ion beam. Different ... Full text Cite

Electronic Stability of Carbon Nanotube Transistors Under Long-Term Bias Stress.

Journal Article Nano letters · March 2019 Thousands of reports have demonstrated the exceptional performance of sensors based on carbon nanotube (CNT) transistors, with promises of transformative impact. Yet, the effect of long-term bias stress on individual CNTs, critical for most sensing applica ... Full text Cite

High surface-area carbon microcantilevers.

Journal Article Nanoscale advances · March 2019 Microscale porous carbon mechanical resonators were formed using carbon nanotube templated microfabrication. These cantilever resonators exhibited nanoscale porosity resulting in a high surface area to volume ratio which could enable sensitive analyte dete ... Full text Cite

Effects of Gate Stack Composition and Thickness in 2-D Negative Capacitance FETs

Journal Article IEEE Journal of the Electron Devices Society · January 1, 2019 Negative capacitance (NC) field-effect transistors (FETs) with 2-D semiconducting channels have become increasingly attractive due to their ability to produce sub-60 mV/dec switching behavior in a physically scalable device. However, it has yet to be deter ... Full text Cite

Fully Printed and Flexible Carbon Nanotube Transistors for Pressure Sensing in Automobile Tires

Journal Article IEEE Sensors Journal · October 1, 2018 As the need for an increased supply and diversity of sensors expands, printed electronics have been identified as a promising approach for low-cost, ubiquitous sensor networks. In this paper, we demonstrate the use of a fully printed carbon nanotube thin-f ... Full text Cite

Bias stress stability of carbon nanotube transistors with implications for sensors

Conference Device Research Conference - Conference Digest, DRC · August 20, 2018 For years, carbon nanotube (CNT) field- effect transistors (CNTFETs) have been promoted for their superb performance in sensing applications [1]. As hollow cylinders of sp2-bonded carbon, CNTs have their entire crystal structure exposed and thus are highly ... Full text Cite

High-Aspect-Ratio Metal Microfabrication by Nickel Electroplating of Patterned Carbon Nanotube Forests

Journal Article Journal of Microelectromechanical Systems · October 1, 2015 High-aspect-ratio metallic microstructures have a variety of potential applications in sensing and actuation. However, fabrication remains a challenge. We have fabricated nickel microstructures with over 20:1 aspect ratios by electroplating patterned carbo ... Full text Cite