Figure 4: Effect of coating speed and of molecular weight. | Nature Communications

Figure 4: Effect of coating speed and of molecular weight.

From: Macroscopic and high-throughput printing of aligned nanostructured polymer semiconductors for MHz large-area electronics

Figure 4

(a) Saturation mobility (VGS=VDS=60 V) for FETs fabricated by bar-coating at different velocity (1, 3 and 6 m min−1) a solution of P(NDI2OD-T2) with Mn of 26.6 KDa and PDI of 3.2, probing the transport parallel (black dots) and perpendicularly (red dots) to the coating direction. The solution concentration is 5 g l−1 in mesitylene. (b) Saturation mobility (VGS=VDS=60 V) for FETs fabricated by bar-coating solutions of P(NDI2OD-T2) with different Mn and PDI, probing the transport parallel (black dots) and perpendicularly (red dots) to the coating direction. Solution concentration (5 g l−1 in mesitylene) and coating speed (3 m min−1) were kept constant.

Back to article page