Charge Mobility in the Room‐Temperature Liquid‐Crystalline Semiconductor Poly(di‐n‐ butylstannane)

The mobility of charge along the σ-bonded backbone of tin atoms in poly(di-n-butylstannane) is ca. 0.1 cm2 V–1 s–1 in the crystalline phase. It decreases by only a factor of three in the liquid-crystalline mesophase, which is stable down to –25 °C on cooling from room temperature (see Figure). The high mobility and the ease with which the polymer chains can be aligned make it a prime candidate for applications in molecular electronic devices.