Abstract
Transfer printing of high mobility inorganic nanostructures, using an elastomeric transfer stamp, is a potential route for high-performance printed electronics. Using this method to transfer nanostructures with high yield, uniformity and excellent registration over large area remain a challenge. Herein, we present the ‘direct roll transfer’ as a single-step process, i.e., without using any elastomeric stamp, to print nanoribbons (NRs) on different substrates with excellent registration (retaining spacing, orientation, etc.) and transfer yield (∼95%). The silicon NR based field-effect transistors printed using direct roll transfer consistently show high performance i.e., high on-state current (Ion) >1 mA, high mobility (μeff) >600 cm2/Vs, high on/off ratio (Ion/off) of around 106, and low hysteresis (<0.4 V). The developed versatile and transformative method can also print nanostructures based on other materials such as GaAs and thus could pave the way for direct printing of high-performance electronics on large-area flexible substrates.
Highlights
Advances in flexible large-area electronics (LAE) have enabled novel applications across numerous areas including wearable systems, soft robotics, bendable displays, and healthcare[1,2,3,4,5]
We report a simple, cost-effective, yet robust direct roll transfer printing technique and demonstrates its efficacy for high-performance electronics by developing NR-based field-effect transistors (NRFETs)
The printing process is displayed in the supplementary information (Supplementary video M1 and Fig. 1)
Summary
Advances in flexible large-area electronics (LAE) have enabled novel applications across numerous areas including wearable systems, soft robotics, bendable displays, and healthcare[1,2,3,4,5]. Transfer printing has shown good potential for realizing high-performance flexible electronic devices and circuits[7,22] with silicon and compound semiconductor material-based nanostructures (NSs) such as micro-/nano-membranes (NMs), nanoribbons (NRs), nanowires (NWs), etc. These modified transfer printing methods improve the yield and reliability of the process and further extend the transfer printing capacities to: (i) selective printing[33], (ii) arbitrary substrate integration[34], and (iii) deterministic assembly of nano to chip-scale structures[17,28,35] These modified transfer printing methods have shown good potential for flexible electronics, but they require additional excitation equipment such as laser system, and magnet actuating system, etc.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
