Low-power printed micro-hotplates through aerosol jetting of gold on thin polyimide membranes

Khan, Saleem; Nguyen, Tran Phong; Lubej, Martin; Thiéry, Laurent; Vairac, Pascal; Briand, D.

doi:10.1016/j.mee.2018.03.013

Cited by 31 publications

(33 citation statements)

References 28 publications

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“…were used for sensing various gases in human breath [ 22 , 101 , 102 , 103 ]. MOX gas sensors usually require a micro-hotplate to activate the redox reactions occurring at the sensing layer [ 104 ]. The higher sintering temperatures of MOX materials hinders their use on substrates with low glass-transition (T g ) temperatures, i.e., >150 °C.…”

Section: Wearable Sensorsmentioning

confidence: 99%

Recent Developments in Printing Flexible and Wearable Sensing Electronics for Healthcare Applications

Khan

Ali

Bermak

2019

Sensors

180

121

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Wearable biosensors attract significant interest for their capabilities in real-time monitoring of wearers’ health status, as well as the surrounding environment. Sensor patches are embedded onto the human epidermis accompanied by data readout and signal conditioning circuits with wireless communication modules for transmitting data to the computing devices. Wearable sensors designed for recognition of various biomarkers in human epidermis fluids, such as glucose, lactate, pH, cholesterol, etc., as well as physiological indicators, i.e., pulse rate, temperature, breath rate, respiration, alcohol, activity monitoring, etc., have potential applications both in medical diagnostics and fitness monitoring. The rapid developments in solution-based nanomaterials offered a promising perspective to the field of wearable sensors by enabling their cost-efficient manufacturing through printing on a wide range of flexible polymeric substrates. This review highlights the latest key developments made in the field of wearable sensors involving advanced nanomaterials, manufacturing processes, substrates, sensor type, sensing mechanism, and readout circuits, and ends with challenges in the future scope of the field. Sensors are categorized as biological and fluidic, mounted directly on the human body, or physiological, integrated onto wearable substrates/gadgets separately for monitoring of human-body-related analytes, as well as external stimuli. Special focus is given to printable materials and sensors, which are key enablers for wearable electronics.

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Section: Wearable Sensorsmentioning

confidence: 99%

Recent Developments in Printing Flexible and Wearable Sensing Electronics for Healthcare Applications

Khan

Ali

Bermak

2019

Sensors

180

121

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“…Aerosol jet printing is an interesting technique in noncontact printing, which has attracted a significant interest in the manufacturing of high-resolution pattering. A wide variety of materials including insulators, semiconductors, and metallic conductors are processed in viscosity ranges of 1-1000 cps [1,33]. The aerosol process is driven by the gas flows where a mist of microdroplets is generated as a result of pneumatic atomization or through ultrasonication.…”

Section: Aerosol Jet Printingmentioning

confidence: 99%

Smart Manufacturing Technologies for Printed Electronics

Khan¹,

Ali²,

Bermak³

2020

Hybrid Nanomaterials - Flexible Electronics Materials

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Fabrication of electronic devices on different flexible substrates is an area of significant interest due to low cost, ease of fabrication, and manufacturing at ambient conditions over large areas. Over the time, a number of printing technologies have been developed to fabricate a wide range of electronic devices on nonconventional substrates according to the targeted applications. As an increasing interest of electronic industry in printed electronics, further expansion of printed technologies is expected in near future to meet the challenges of the field in terms of scalability, yield, and diversity and biocompatibility. This chapter presents a comprehensive review of various printing electronic technologies commonly used in the fabrication of electronic devices, circuits, and systems. The different printing techniques based on contact/noncontact approach of the printing tools with the target substrates have been explored. These techniques are assessed on the basis of ease of operation, printing resolutions, processability of materials, and ease of optimization of printed structures. The various technical challenges in printing techniques, their solutions with possible alternatives, and the potential research directions are highlighted. The latest developments in assembling various printing tools for enabling high speed and batch manufacturing through roll-to-roll systems are also explored.

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“…Higher performances could be also achieved considering other materials or doping agents, such as Au [12]. However, in this case, material costs would pose a large obstacle for a commercial large-scale production of devices.…”

Section: Comparison With Other Microheaters In the Literaturementioning

confidence: 99%

“…Recently, Khan et al have reported aerosol jetted heaters, based on Au-nanoparticles on a polyimide substrate with an area of 0.25 mm 2 . Their micro-hotplates can operate at temperatures up to 250 °C with a power consumption of 39 mW [ 12 ]. In other works, the use of silver (AgNW) and copper (CuNWs) nanowires has also been demonstrated for the manufacture of transparent heaters by spray deposition techniques [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Printed and Flexible Microheaters Based on Carbon Nanotubes

et al. 2020

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This work demonstrates a cost-effective manufacturing method of flexible and fully printed microheaters, using carbon nanotubes (CNTs) as the heating element. Two different structures with different number of CNT layers have been characterized in detail. The benchmarking has been carried out in terms of maximum operating temperature, as well as nominal resistance and input power for different applied voltages. Their performances have been compared with previous reports for similar devices, fabricated with other technologies. The results have shown that the heaters presented can achieve high temperatures in a small area at lower voltages and lower input power. In particular, the fully printed heaters fabricated on a flexible substrate covering an area of 3.2 mm2 and operating at 9.5 V exhibit a maximum temperature point above 70 °C with a power consumption below 200 mW. Therefore, we have demonstrated that this technology paves the way for a cost-effective large-scale fabrication of flexible microheaters aimed to be integrated in flexible sensors.

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Low-power printed micro-hotplates through aerosol jetting of gold on thin polyimide membranes

Cited by 31 publications

References 28 publications

Recent Developments in Printing Flexible and Wearable Sensing Electronics for Healthcare Applications

Recent Developments in Printing Flexible and Wearable Sensing Electronics for Healthcare Applications

Smart Manufacturing Technologies for Printed Electronics

Printed and Flexible Microheaters Based on Carbon Nanotubes

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