A fully roll-to-roll gravure-printed carbon nanotube-based active matrix for multi-touch sensors

Roll-to-roll (R2R) printing has been pursued as a commercially viable high-throughput technology to manufacture flexible, disposable, and inexpensive printed electronic devices. However, in recent years, pessimism has prevailed because of the barriers faced when attempting to fabricate and integrate thin film transistors (TFTs) using an R2R printing method. In this paper, we report 20 × 20 active matrices (AMs) based on single-walled carbon nanotubes (SWCNTs) with a resolution of 9.3 points per inch (ppi) resolution, obtained using a fully R2R gravure printing process. By using SWCNTs as the semiconducting layer and poly(ethylene terephthalate) (PET) as the substrate, we have obtained a device yield above 98%, and extracted the key scalability factors required for a feasible R2R gravure manufacturing process. Multi-touch sensor arrays were achieved by laminating a pressure sensitive rubber onto the SWCNT-TFT AM. This R2R gravure printing system overcomes the barriers associated with the registration accuracy of printing each layer and the variation of the threshold voltage (Vth). By overcoming these barriers, the R2R gravure printing method can be viable as an advanced manufacturing technology, thus enabling the high-throughput production of flexible, disposable, and human-interactive cutting-edge electronic devices based on SWCNT-TFT AMs.

[1]  Scalability of carbon-nanotube-based thin film transistors for flexible electronic devices manufactured using an all roll-to-roll gravure printing system , 2015, Scientific reports.

[2]  Jaeyoung Kim,et al.  All-Printed and Roll-to-Roll-Printable 13.56-MHz-Operated 1-bit RF Tag on Plastic Foils , 2010, IEEE Transactions on Electron Devices.

[3]  Vivek Subramanian,et al.  Scalability of Roll-to-Roll Gravure-Printed Electrodes on Plastic Foils , 2010, IEEE Transactions on Electronics Packaging Manufacturing.

[4]  Jinsoo Noh,et al.  Fully roll-to-roll gravure printed rectenna on plastic foils for wireless power transmission at 13.56 MHz , 2012, Nanotechnology.

[5]  Wi Hyoung Lee,et al.  25th Anniversary Article: Microstructure Dependent Bias Stability of Organic Transistors , 2014, Advanced materials.

[6]  Jinsoo Noh,et al.  Key Issues With Printed Flexible Thin Film Transistors and Their Application in Disposable RF Sensors , 2015, Proceedings of the IEEE.

[7]  Gerwin H. Gelinck,et al.  Active‐Matrix Displays Driven by Solution‐Processed Polymeric Transistors , 2002 .

[8]  Donal D. C. Bradley,et al.  Polymer Field‐Effect Transistors Fabricated by the Sequential Gravure Printing of Polythiophene, Two Insulator Layers, and a Metal Ink Gate , 2010 .

[9]  蒋子堃.  A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution. , 2016 .

[10]  Jeongdai Jo,et al.  Design of roll-to-roll printing equipment with multiple printing methods for multi-layer printing. , 2012, The Review of scientific instruments.

[11]  John A. Rogers,et al.  Monolithically integrated, flexible display of polymer-dispersed liquid crystal driven by rubber-stamped organic thin-film transistors , 2001 .

[12]  Bruce E. Kahn,et al.  Patterning Processes for Flexible Electronics , 2015, Proceedings of the IEEE.

[13]  Vivek Subramanian,et al.  Roll-to-roll gravure with nanomaterials for printing smart packaging. , 2014, Journal of nanoscience and nanotechnology.

[14]  Jinsoo Noh,et al.  Fully Gravure-Printed Flexible Full Adder Using SWNT-Based TFTs , 2012, IEEE Electron Device Letters.

[15]  Zhibin Yu,et al.  Large‐Area Compliant Tactile Sensors Using Printed Carbon Nanotube Active‐Matrix Backplanes , 2015, Advanced materials.

[16]  P. H. Lau,et al.  Fully printed, high performance carbon nanotube thin-film transistors on flexible substrates. , 2013, Nano letters.

[17]  Jinsoo Noh,et al.  Integrable single walled carbon nanotube (SWNT) network based thin film transistors using roll-to-roll gravure and inkjet , 2011 .

[18]  Otto M. Lilien.  History of industrial gravure printing up to 1920 , 1972 .

[19]  Gyoujin Cho,et al.  Fully Roll-to-Roll Gravure Printable Wireless (13.56 MHz) Sensor-Signage Tags for Smart Packaging , 2014, Scientific Reports.

[20]  Swaroop Darbha,et al.  Output Regulation of Nonlinear Systems With Application to Roll-to-Roll Manufacturing Systems , 2015, IEEE/ASME Transactions on Mechatronics.

[21]  W. Balsam,et al.  Hf-Nd isotopic variability in mineral dust from Chinese and Mongolian deserts: implications for sources and dispersal , 2014, Scientific Reports.