TY - JOUR A1 - Ye, Xiangdong A1 - Tian, Bo A1 - Guo, Yuxuan T1 - A Novel Dry Blending Method to Reduce Coefficient of Thermal Expansion of Polymer Template for OTFT Electrodes Alignment JF - Beilstein Archives Y1 - 2019/// SN - M3 - doi:10.3762/bxiv.2019.156.v1 N2 - 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. ER -