Optical Properties of Poly(3-hexylthiophene)/ZeS Nanocomposites

摘要

Nanocomposites comprised of po1y(3-alkyl thiophenes)(P3ATs)/semiconductor nanoparticles exhibited excellent photoelectricity performance due to contributions from both the P3ATs and the semiconductor nanoparticles.In this study,poly(3-hexylthiophene)(P3HT)was synthesized and P3HT/ZnS nanocomposites were prepared using an in-situ method.The ZnS nanoparticles exhibited strong quantum effect on the photoluminescence(PL)properties of P3HT/ZnS and the nanocomposites exhibit an enhanced PL and red-shifted emission with increasing ZnS content.The PL quenched at ZnS-to-3HT ratio of 9.92 X 10~(-2)mol mol~(-1).The charge-transfer process between P3HT and ZnS particles is discussed.The P3HT/ZnS composites also exhibited excellent nonlinear optical(NLO)properties.The third-order NLO coefficient of P3HT/ZnS(chi~(3)=-6.76 X 10~(-12)esu)is higher than that of P3HT.The P3HT/ZnS nanocomposites have potential optical applications.