OFFSET PRINTING PROCESS Assembly and transfer
Graduate Category: Engineering and Technology Degree Level: PhD Abstract ID#517
High-rate Multi-Scale Offset Printing Process Using Reusable Template Hobin Jeong, Hanchul Cho, Sivasubramanian Somu, Jungho Seo and Ahmed Busnaina
ABSTRACT Most of the portable electrical devices surrounding us like a smart phone, could not be realized without the nanomanufacturing technology. However, there are still some barriers that remain such as low yield, complex procedure, high energy consumption . To overcome these barriers, we have reported a multi-scale offset printing process of nanoelements based on directed assembly and a transfer using a reusable template. The nanoelements are attracted and assembled to the desired location, conductive patterns on the template, by the electrophoresis. Then the assembled nanoelements are transferred from the template to various substrates with 100% yield. After transfer, the template is ready to be reused for other hundreds cycles of the process without any additional step. This reusability and flexible substrate of the template can allow continuous manufacturing systems, such as a roll-to-roll system. The offset printing process shows excellent compatibility with various nanoelements. As an application, we have demonstrated that flexible biosensors to detect glucose, lactate, and enzymes with high resolution, large detecting range with high speed.
BACKGROUND Flexible and wearable sensor
ASSEMBLY RESULTS
APPLICATIONS
Electrophoretic assembly using damascene template.
Flexible damascene template for roll-to-roll printing system
Electrophoretic assembly can align assembled SWNT.
PI
Highly aligned SWNTs allow minimal variation of device to device. Alignment of SWNTs can be controlled by pulling speed.
Flexible biosensor
PSL nanoparticles
Biochemical treatment
METHODS:
Various nanoelements assembly Silica nanoparticles
OFFSET PRINTING PROCESS D-glucose Detection MWNTs
SWNTs (large scale)
Highly stable OFET sensor 500 nm
500 nm
200μm
200 μm Changhyun Pang et al., Nature, 2012
PEN
Oren Knopfmacher et al., Nature communications, 2014
SWNTs + Au nanoparticles
Sodium Lactate Detection
Cellulose
High rate manufacturing techniques are needed.
“Offset printing technology can be a solution.” Printed electronics Market forecasts to 2025 a $250+ billion market
200 nm
200 nm 200 nm
1μm
2μm
Urea Detection http://www.frost.com/prod/servlet/market-insight-print.pag?docid=108885683
DAMASCENE TEMPLATE
TRANSFER RESULTS Assembly and transfer MWNT
SWNT
MWTNs SiO2
CONCLUSION Damascene template after transfer: Ready to reuse
Recipient substrate after transfer “printing”
gold
Through the damascene template, Scalable ,high rate and uniform assembly Precise location controlling Fast flexible device integration. Reusable template. Mild condition assembly.
SiO2
MWNTs PEN
Topographically flat reusable template have been fabricated for directed assembly and transfer of nanoelements. The template can be made with flexible material to apply to a roll-to-roll system Our approach demonstrates the capability of assembly of various nanoelements. Highly aligned SWNTs based biosensors show excellent detecting results for glucose, lactate and urea.
High-rate Multi-Scale Offset Printing Process Using Reusable Template Hobin Jeong, Hanchul Cho, Sivasubramanian Somu, Jungho Seo and Ahmed Busnaina
ABSTRACT Most of the portable electrical devices surrounding us like a smart phone, could not be realized without the nanomanufacturing technology. However, there are still some barriers that remain such as low yield, complex procedure, high energy consumption . To overcome these barriers, we have reported a multi-scale offset printing process of nanoelements based on directed assembly and a transfer using a reusable template. The nanoelements are attracted and assembled to the desired location, conductive patterns on the template, by the electrophoresis. Then the assembled nanoelements are transferred from the template to various substrates with 100% yield. After transfer, the template is ready to be reused for other hundreds cycles of the process without any additional step. This reusability and flexible substrate of the template can allow continuous manufacturing systems, such as a roll-to-roll system. The offset printing process shows excellent compatibility with various nanoelements. As an application, we have demonstrated that flexible biosensors to detect glucose, lactate, and enzymes with high resolution, large detecting range with high speed.
BACKGROUND Flexible and wearable sensor
ASSEMBLY RESULTS
APPLICATIONS
Electrophoretic assembly using damascene template.
Flexible damascene template for roll-to-roll printing system
Electrophoretic assembly can align assembled SWNT.
PI
Highly aligned SWNTs allow minimal variation of device to device. Alignment of SWNTs can be controlled by pulling speed.
Flexible biosensor
PSL nanoparticles
Biochemical treatment
METHODS:
Various nanoelements assembly Silica nanoparticles
OFFSET PRINTING PROCESS D-glucose Detection MWNTs
SWNTs (large scale)
Highly stable OFET sensor 500 nm
500 nm
200μm
200 μm Changhyun Pang et al., Nature, 2012
PEN
Oren Knopfmacher et al., Nature communications, 2014
SWNTs + Au nanoparticles
Sodium Lactate Detection
Cellulose
High rate manufacturing techniques are needed.
“Offset printing technology can be a solution.” Printed electronics Market forecasts to 2025 a $250+ billion market
200 nm
200 nm 200 nm
1μm
2μm
Urea Detection http://www.frost.com/prod/servlet/market-insight-print.pag?docid=108885683
DAMASCENE TEMPLATE
TRANSFER RESULTS Assembly and transfer MWNT
SWNT
MWTNs SiO2
CONCLUSION Damascene template after transfer: Ready to reuse
Recipient substrate after transfer “printing”
gold
Through the damascene template, Scalable ,high rate and uniform assembly Precise location controlling Fast flexible device integration. Reusable template. Mild condition assembly.
SiO2
MWNTs PEN
Topographically flat reusable template have been fabricated for directed assembly and transfer of nanoelements. The template can be made with flexible material to apply to a roll-to-roll system Our approach demonstrates the capability of assembly of various nanoelements. Highly aligned SWNTs based biosensors show excellent detecting results for glucose, lactate and urea.
