초록 |
To fabricate polymer films showing linearly polarized light emission, we newly synthesized a rod-shaped AIE luminogen (DCDS). As a result of thermal behavior analysis, DCDS showed a nematic mesophase between 130 °C and 220 °C. Because of the broad thermal window of mesomorphic state, DCDS can be aligned by PI alignment layer. Through subsequent thiol-ene reaction in anti-parallelly rubbed optical cells, uniaxially oriented and polymer-stabilized DCDS polymer films were prepared. The DCDS polymer thin films showed linearly polarized light emission under UV light. Based on the PL data, the polarization ratio and order parameter of DCDS polymer thin films were calculated to be 2.25 and 0.29, respectively. The polymer-stabilized DCDS polymer films have great potential to advanced optical devices and can provide new perspectives about polarized light emissive polymer films. This work was supported by BK21 Plus program, the BRL 2015042417, Mid-Career Researcher Program (2016R1A2B2011041). |