Carbon Nanotube-Based Flexible UV Sensor on Various Substrates

Batista, Mariana Desireé Reale; Drzal, Lawrence T.; Han, Jin−Woo; Meyyappan, M.

doi:10.1109/jsen.2020.2982829

Cited by 7 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As mentioned before, SWCNTs have received a great deal of attention in photodetector applications because of their low band gap. Figure summarizes the operation regions in terms of power intensity and wavelength for previously reported SWCNT-based photodetectors. − ,− ,− Power levels lower than 10 W/m 2 in visible and 1000 W/m 2 in infrared regions containing sunlight region (depicted as the sky-blue region and yellow line in Figure ) are too low to induce any photoresponse from a pure SWCNT film. In other words, SWCNT TFTs can be one of the best candidates for daily-life illumination-insensitive transparent electronics applications.…”

Section: Resultsmentioning

confidence: 99%

Photoresponse Analysis of All-Inkjet-Printed Single-Walled Carbon Nanotube Thin-Film Transistors for Flexible Light-Insensitive Transparent Circuit Applications

Yoo

Seo

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

We report daylight-stable, transparent, and flexible single-walled carbon nanotube thin-film transistors (SWCNT TFTs) using an all-inkjet printing process. Although most of the previous reports classified SWCNT TFTs as photodetectors, we demonstrated that SWCNT films actually show two different types of photoresponses depending on the power levels of light sources. The electrical characteristics of SWCNT TFTs show no significant change under daily illumination conditions such as halogen lamps and sunlight, while under high-power laser illumination, they change as reported in the previous results. In addition, the lowtemperature solution process of the SWCNT with its onedimensional nature allows us to realize highly transparent and flexible TFTs and logic circuits on plastic substrates. Our result will provide new insights into utilizing SWCNT TFTs for lightinsensitive transparent and flexible electronic applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Photoresponse Analysis of All-Inkjet-Printed Single-Walled Carbon Nanotube Thin-Film Transistors for Flexible Light-Insensitive Transparent Circuit Applications

Yoo

Seo

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…The Voltera V-One is a desktop PCB printer designed for prototyping and assembling printed circuit boards and offers four key functions: printing conductive ink, drilling holes, dispensing solder paste, and reflow soldering components. It has been used in a wide range of applications, such as flexible electronics [39] and sensor development [40][41][42]. It has also been successfully used in microwave engineering for prototyping microwave devices, including microwave transducers [6,43] and antennas with operating frequencies up to 10 GHz [44][45][46].…”

Section: Filter Fabricationmentioning

confidence: 99%

On the Development of Inkjet-Printed Band Pass Filters Based on the Microstrip Hairpin Structure

Gugliandolo,

Quattrocchi,

Campobello

et al. 2024

Instruments

View full text Add to dashboard Cite

In recent years, inkjet printing has emerged as a promising advanced fabrication technology in the field of electronics, offering remarkable advantages in terms of cost-effectiveness, design flexibility, and rapid prototyping. For these reasons, inkjet printing technology has been widely adopted in various applications, including printed circuit board fabrication, sensor development (e.g., temperature, humidity, and pressure sensing), and antenna and filter production, up to the microwave frequency range. The present paper is focused on the investigation of a methodology based on Monte Carlo simulations for quantitatively assessing the influence of fabrication tolerances on the performance of inkjet-printed microwave devices. In particular, the proposed methodology is applied to an inkjet-printed hairpin band pass filter specifically tailored for operation in the L band (i.e., from 1 GHz to 2 GHz). The initial design phase involved the use of computer aided design (CAD) software to optimize the geometric dimensions of the designed filter to closely match the desired performance specifications in terms of bandwidth, insertion loss, and return loss. Later, a Monte Carlo analysis was conducted to evaluate the propagation of tolerances in the fabrication process throughout the design and to estimate their effects on device performance. The fabrication process exploited the advanced capabilities of the Voltera inkjet printer, which was used to deposit a silver-based conductive ink on a commercial Rogers substrate. The device’s performance was evaluated by comparing the simulated scattering parameters with those measured on the developed filter using a vector network analyzer (VNA), thus ensuring accurate validation of real-world performance.

show abstract

“…Further details of the ink preparation and device fabrication process can be found in [3]. The morphology of the nanotubes has been thoroughly characterized previously by scanning electron microscopy and atomic force microscopy in our UV sensor work [16] and therefore, not been repeated.…”

Section: Experimental Workmentioning

confidence: 99%

“…Our experimental findings here show that CNT based detectors can potentially replace the silicon detectors, but further experiments and field evaluation are needed which is beyond the scope of this work. Carbon nanotubes (CNTs) have been a prominent contender for high-performance radiation sensors due to their attractive properties such as small size, high mechanical strength, robustness, high electrical and thermal conductivity, and high specific surface area [1,3,[13][14][15][16][17]. Besides detector development, since CNT properties can be readily modified as desired by exposure to various radiations to tailor them for applications, the interaction between CNTs and various radiations and the resulting structural and electrical changes have been extensively studied, for example, electrons [18], ions [19,20], alpha particles [21], gamma rays [22] and protons [23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Effect of 150 MeV protons on carbon nanotubes for fabrication of a radiation detector

et al. 2021

Self Cite

View full text Add to dashboard Cite

High energy and high flux protons are used in proton therapy and the impact of proton radiation is a major reliability concern for electronics and solar cells in low earth orbit as well as in the trapped belts. Carbon nanotubes (CNTs), due to their unique characteristics, have been considered for the construction of proton and other radiation sensors. Here, a single wall CNT based proton sensor was fabricated on FR4 substrate and its response to 150 MeV proton irradiation was studied. The change in the resistance of the nanotubes upon irradiation is exploited as the sensing mechanism and the sensor shows good sensitivity to proton radiation. Proton radiation induces dissociation of ambient oxygen, followed by the adsorption of oxygen species on the nanotube surface, which influences its electrical characteristics. Since the nanotube film is thin and the 150 MeV protons are expected to penetrate into and interact with the substrate, control experiments were conducted to study the impact on FR4 substrate without the nanotubes. The dielectric loss tangent or dissipation factor of FR4 increases after irradiation due to an increase in the cross-linking of the resin arising from the degradation of the polymer network.

show abstract

Carbon Nanotube-Based Flexible UV Sensor on Various Substrates

Cited by 7 publications

References 35 publications

Photoresponse Analysis of All-Inkjet-Printed Single-Walled Carbon Nanotube Thin-Film Transistors for Flexible Light-Insensitive Transparent Circuit Applications

Photoresponse Analysis of All-Inkjet-Printed Single-Walled Carbon Nanotube Thin-Film Transistors for Flexible Light-Insensitive Transparent Circuit Applications

On the Development of Inkjet-Printed Band Pass Filters Based on the Microstrip Hairpin Structure

Effect of 150 MeV protons on carbon nanotubes for fabrication of a radiation detector

Contact Info

Product

Resources

About