A novel dry-blending method to reduce the coefficient of thermal expansion of polymer templates for OTFT electrodes

• Xiangdong Ye,
• Bo Tian,
• Yuxuan Guo,
• Fan Fan and
• Anjiang Cai

Beilstein J. Nanotechnol. 2020, 11, 671–677, doi:10.3762/bjnano.11.53

• thermal expansion (CTE) of the polymer template is much higher 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, followed by permeation of polydimethylsiloxane (PDMS) into the SiO2 nanoparticle gaps

• achieved the alignment of OTFT electrodes using the composite template. Keywords: coefficient of thermal expansion; dry blending; organic thin-film transistors (OTFTs); OTFT electrodes; PDMS/SiO2 composite template; Introduction Organic thin-film transistors (OTFTs) provide a platform to construct next

• remain high [19]. Hence, we propose a novel dry-blending method, in which the nanomaterial is filled into the grooves of a patterned template first, and then the liquid polymer is poured on the template. As the polymer will permeate into the gaps of the nanomaterial to form the composite, the resultant