A Novel Dry Blending Method to Reduce Coefficient of Thermal Expansion of Polymer Template for OTFT Electrodes Alignment

Submitting author affiliation:
Xi’an University of Architecture and Technology, Xi’an, China

Beilstein Arch. 2019, 2019156. https://doi.org/10.3762/bxiv.2019.156.v1

Published 12 Dec 2019

cc-by Logo


Among patterning technologies for organic thin-film transistors (OTFT), the fabrication of OTFT electrodes using polymer template has attracted much attention. However, deviations in electrodes alignment occur owing to a much higher coefficient of thermal expansion (CTE) of the polymer template than the CTE of the dielectric layer. Here, a novel dry blending method is described in which SiO2 nanoparticles are filled into a grooved silicon template, following by permeation of polydimethylsiloxane (PDMS) into the SiO2 nanoparticle gaps. The SiO2 nanoparticles in the groove are extracted by curing and peeling off PDMS to prepare a PDMS/SiO2 composite template with a nanoparticle content of 83.8 wt%. The composite template has a CTE of 96 ppm/°C, which a reduction of 69.23%, compared with the original PDMS template. Finally, we achieved the OTFT electrodes alignment by the composite template.

Keywords: PDMS/SiO2 composite template; dry blending; coefficient of thermal expansion; OTFT electrodes

How to Cite

When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Ye, X.; Tian, B.; Guo, Y. Beilstein Arch. 2019, 2019156. doi:10.3762/bxiv.2019.156.v1

Download Citation

Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Zotero.