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. 2020 May 6;5(19):10891–10899. doi: 10.1021/acsomega.0c00548

Table 2. Electrical Properties of Transistors Based on the C8-BTBT/PMMA Blend Film Spin-Cast on Different Polymer Modification Layers.

dielectric Ci (nF/cm2) Vth (V) Ion/Ioff SS (V/decade) Ntrapmax (cm–2 eV–1) average mobility (cm2/V·s)
SiO2 11.4 –45.6 ± 4.8 >107 3.9 ± 0.3 (4.6 ± 0.4) × 1012 1.85 ± 0.68
PMMA/SiO2 10.0 –40.5 ± 4.2 >107 3.8 ± 0.2 (4.5 ± 0.2) × 1012 2.24 ± 0.75
PS/SiO2 11.3 –41.2 ± 3.5 >107 3.4 ± 0.2 (3.7 ± 0.2) × 1012 3.16 ± 1.24