Inkjet printing of polymer functionalized CNT gas sensor with enhanced sensing properties

Alshammari, Abdullah S.; Alenezi, Mohammad R.; Lai, K. T.; Silva, S.R.P.

doi:10.1016/j.matlet.2016.11.033

Cited by 89 publications

(35 citation statements)

References 16 publications

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“…This can be dealt with redefining the attributes of the printer to form sensors with a high range of structural dimensions, the capability to be able to form different shapes of prototypes, able to handle a range of processing materials and working a dynamic range of temperature and humidity. Also, these printers can only deal with a few processing materials, especially that of printing filaments like ABS [82][83][84], PLA [85][86][87] and some polymers [88][89][90]. The range of printing filaments to form the molds should also be increased to develop molds with different layers, and subsequent casting and contact printing of the raw materials that can be processed within a single mold.…”

Section: Current Challenges and Future Opportunitiesmentioning

confidence: 99%

Recent Progress in 3D Printed Mold-Based Sensors

Feng

Nag

et al. 2020

Sensors

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The paper presents a review of some of the significant research done on 3D printed mold-based sensors performed in recent times. The utilization of the master molds to fabricate the different parts of the sensing prototypes have been followed for quite some time due to certain distinct advantages. Some of them are easy template preparation, easy customization of the developed products, quick fabrication, and minimized electronic waste. The paper explains the different kinds of sensors and actuators that have been developed using this technique, based on their varied structural dimensions, processed raw materials, designing, and product testing. These differences in the attributes were based on their individualistic application. Furthermore, some of the challenges related to the existing sensors and their possible respective solutions have also been mentioned in the paper. Finally, a market survey has been provided, stating the estimated increase in the annual growth of 3D printed sensors. It also states the type of 3D printing that has been preferred over the years, along with the range of sensors, and their related applications.

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Section: Current Challenges and Future Opportunitiesmentioning

confidence: 99%

Recent Progress in 3D Printed Mold-Based Sensors

Feng

Nag

et al. 2020

Sensors

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“…Researchers try to overcome these challenges by adjusting the IDE distances to the specific ink (e.g., silver ink) [24] or by digital adjustment of the IDE layout (e.g., with bitmap masking) [50]. Smallest IDE distances of about 25 µm achieved by inkjet-printing was demonstrated by Alshammari et al and of 57 µm by Rivadeneyra et al [33,51]. Silver and gold nanoparticle-based inks are mostly applied for IDEs of printed chemical sensors [20,21,24,26,34,49,[52][53][54][55][56].…”

Section: Substrate and Electrode Materialsmentioning

confidence: 99%

“…They could enhance the sensitivity and response time by the polymer functionalized CNTs compared to previous presented CNT-based sensor approaches. The response time for 1000 ppm ranged between 8 s and 25 s. The detection limit of their sensor was found to be about 13 ppm [51]. Table 1 summarizes selected publications of partly as well as fully inkjet-printed gas sensing devices.…”

Section: Fully Inkjet-printed Chemiresistorsmentioning

confidence: 99%

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Inkjet-Printed Wireless Chemiresistive Sensors—A Review

2018

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Microelectronic devices have great potential to be integrated into the Internet of Things, bringing benefits to the environment, society, and economy. Especially, microscaled chemical sensors for environmental monitoring are of great interest since they can be manufactured by cost, time, and resource efficient inkjet printing technology. The aim of the present literature review is a reflection of state-of-the-art inkjet-printed chemiresistive sensors. It examines current material approaches used to realize printed chemiresistors, especially the challenges in the realisation of accurate electrode patterns as well as the deposition of various sensing materials by inkjet printing technology. The review will be completed by an overview of current research activities dealing with the integration of chemiresistive sensors into wireless applications. The result of this review confirms that during the last decades, the number of publications covering inkjet-printed chemical, especially chemiresistive, sensors and their introduction into the Internet of Things is growing. Furthermore, it reveals the need for further research regarding material science and printing technology compatibility to achieve reliable and reproducible chemiresistive sensors.

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“…However, their uneven structure and agglomerations properties have limited their potential and make them less sensitive and selective [16]. Modification of the CNTs with functional groups [17], polymers [18], and metal oxide nanoparticles [19] is one of the several ways utilized to improve the compatibility of CNTs.…”

Section: Introductionmentioning

confidence: 99%

Effect of Functionalized Carbon Nanotubes in the Detection of Benzene at Room Temperature

Janudin

Abdullah

Yunus

et al. 2018

Journal of Nanotechnology

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In this paper, carbon nanotubes (CNTs) were functionalized by acid treatment and further functionalized with dodecylamine and were designated as CNT-carboxylic and CNT-amide, respectively. Then, functionalized CNTs produced were characterized with various methods to verify the attachment of a functional group. Performance of the functionalized CNTs in the detection of benzene gas was monitored at room temperature. The sample was dropped cast on the interdigitated transducer (IDT), and the changes in resistivity were recorded by a digital multimeter in a customized chamber under controlled humidity (∼55%) environment. Based on the findings, it showed that the functionalized CNTs provide an extra active area for interaction between the gas analyte and CNTs, thus increasing their response and improving the sensitivity of the sensing material.

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Inkjet printing of polymer functionalized CNT gas sensor with enhanced sensing properties

Cited by 89 publications

References 16 publications

Recent Progress in 3D Printed Mold-Based Sensors

Recent Progress in 3D Printed Mold-Based Sensors

Inkjet-Printed Wireless Chemiresistive Sensors—A Review

Effect of Functionalized Carbon Nanotubes in the Detection of Benzene at Room Temperature

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