Selective deposition of chemically-bonded gold electrodes onto PDMS microchannel side walls

Kadilak, Andrea L.; Liu, Ying; Shrestha, Sujan; Bernard, Joshua R.; Mustain, William E.; Shor, Leslie

doi:10.1016/j.jelechem.2014.06.006

Cited by 14 publications

(10 citation statements)

References 30 publications

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“…A suspension of powdered CB (50 nm particle size, Vulcan XC 72 Cabot Corporation) was mixed with PDMS (Sylgard 184, Corning Inc.) in a five-step process modified from previously reported works: − (i) CB was suspended in hexane in a 1:10 (w/w) ratio and sonicated at 220 W for 10 min. (ii) Base elastomer was also dissolved in hexane in a 1:2 (w/w) ratio in a different container.…”

Section: Experimental Methodsmentioning

confidence: 99%

Monolithic Solder-On Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Kasimatis

Núñez-Bajo

Grell

et al. 2019

ACS Appl. Mater. Interfaces

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We report a method of creating solderable, mechanically robust, electrical contacts to interface (soft) silicone-based strain sensors with conventional (hard) solid-state electronics using a nanoporous Si-Cu composite. The Si-based solder-on electrical contact consists of a copper-plated nanoporous Si top surface formed through metal-assisted chemical etching and electroplating and a smooth Si bottom surface that can be covalently bonded onto silicone-based strain sensors through plasma bonding. We investigated the mechanical and electrical properties of the contacts proposed under relevant ranges of mechanical stress for applications in physiological monitoring and rehabilitation. We also produced a series of proof-of-concept devices, including a wearable respiration monitor, leg band for exercise monitoring, and squeeze ball for monitoring rehabilitation of patients with hand injuries or neurological disorders to demonstrate the mechanical robustness and versatility of the technology developed in real-world applications.

show abstract

Section: Experimental Methodsmentioning

confidence: 99%

Monolithic Solder-On Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Kasimatis

Núñez-Bajo

Grell

et al. 2019

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Preparation of CB-PDMS composite. A suspension of powdered CB (50-nm particle size, Vulcan XC 72 Cabot Corporation), was mixed with PDMS (Sylgard 184, Corning Inc.) in a five step process modified from previously reported works [51][52][53] : i) CB was suspended in hexane in a 1:10 (w/w) ratio and sonicated at 220 W for 10 min. ii) Base elastomer was also dissolved in hexane in a 1:2 (w/w) ratio in a different container.…”

Section: Experimental Methodsmentioning

confidence: 99%

Monolithic Solder-on Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Kasimatis¹,

Núñez-Bajo²,

Grell³

et al. 2019

Preprint

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We report a method of creating solderable, mechanically robust, electrical contacts to interface (soft) silicone-based strain sensors with conventional (hard) solid-state electronics using a nanoporous Si-Cu composite. The Si-based solder-on electrical contact consists of a copper-plated nanoporous Si top surface formed through metal-assisted chemical etching and electroplating, and a smooth Si bottom surface which can be covalently bonded onto silicone-based strain sensors through plasma bonding. We investigated the mechanical and electrical properties of the contacts proposed under relevant ranges of mechanical stress for applications in physiological monitoring and rehabilitation. We also produced a series of proof-of-concept devices, including a wearable respiration monitor, leg band for exercise monitoring and Squeeze-ball for monitoring rehabilitation of patients with hand injuries or neurological disorders, to demonstrate the mechanical robustness and versatility of the technology developed, in real-world applications.

show abstract

“…Preparation of CB-PDMS composite. A suspension of powdered CB (50-nm particle size, Vulcan XC 72 Cabot Corporation), was mixed with PDMS (Sylgard 184, Corning Inc.) in a five step process modified from previously reported works [58][59][60] : i) CB was suspended in hexane in a 1:10 (w/w) ratio and sonicated at 220 W for 10 min. ii) Base elastomer was also dissolved in hexane in a 1:2 (w/w) ratio in a different container.…”

Section: Experimental Methodsmentioning

confidence: 99%

Monolithic Solder-on Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Kasimatis¹,

Núñez-Bajo²,

Grell³

et al. 2019

Preprint

View full text Add to dashboard Cite

We report a method of creating solderable, mechanically robust, electrical contacts to interface (soft) silicone-based strain sensors with conventional (hard) solid-state electronics using a nanoporous Si-Cu composite. The Si-based solder-on electrical contact consists of a copper-plated nanoporous Si top surface formed through metal-assisted chemical etching and electroplating, and a smooth Si bottom surface which can be covalently bonded onto silicone-based strain sensors through plasma bonding. We investigated the mechanical and electrical properties of the contacts proposed under relevant ranges of mechanical stress for applications in physiological monitoring and rehabilitation. We also produced a series of proof-of-concept devices, including a wearable respiration monitor, leg band for exercise monitoring and Squeeze-ball for monitoring rehabilitation of patients with hand injuries or neurological disorders, to demonstrate the mechanical robustness and versatility of the technology developed, in real-world applications.

show abstract

Selective deposition of chemically-bonded gold electrodes onto PDMS microchannel side walls

Cited by 14 publications

References 30 publications

Monolithic Solder-On Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Monolithic Solder-On Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Monolithic Solder-on Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

Monolithic Solder-on Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors

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