The synthesis, optical and electrical properties of azobenzene-substituted polythiophene derivatives at the 3-position are reported: one without flexible spacer (PT0) and the other with a hexamethylene spacer (PT6). Photoirradiation of PT6 at 366 nm caused trans-cis isomerization of the azobenzene moiety and this photochromic reaction induced a change in conductivity of the thin film of PT6: the conductivity was 1.1×10
–7
S cm
–1
before irradiation and 8.3×10
–7
S cm
–1
after photoirradiation. After annealing, the conductivity of the film returned to the initial value. The conductivity of a compound without the azobenzene moiety, α-terthienyl (αT3), showed no change on photoirradiation at 366 nm.
报告了
偶氮苯在 3 位取代的聚
噻吩衍
生物的合成、光学和电学特性:一种不含柔性间隔物(
PT0),另一种含六亚甲基间隔物(
PT6)。在 366 纳米波长下对
PT6 进行光照射会引起
偶氮苯分子的反式-顺式异构化,这种光致变色反应导致
PT6 薄膜的电导率发生变化:照射前的电导率为 1.1×10 -7 S cm -1 ,光照射后为 8.3×10 -7 S cm -1 。退火后,薄膜的电导率恢复到初始值。没有
偶氮苯分子的化合物 α-terthienyl (αT3) 的电导率在 366 纳米波长的光照射下没有变化。