Abstract

For the present work, solvent (toluene, o-xylene, chloroform, chlorobenzene, and 1,2-dichloroethane) and concentration-dependent (∼10⁻⁶–10⁻³ g ml⁻¹) photophysical properties of poly(9,9-di-(2-ethylhexyl)-9-H-fluorene-2,7-vinylene) (PEFV) were investigated in detail in liquid media as well as thin films. Also, temperature-dependent (3–60 ^oC) fluorescence emission measurements of PEFV were conducted in liquid media. The steady-state and time-resolved data indicate the existence of weak interchain interaction in liquid media at high concentration. However, both ground-state aggregation and interchain interaction are present for PEFV in thin film. The interchain interaction plays a dominant role on the fluorescence emission of PEFV in thin film on the red side of the spectra.

© 2022 The Author(s)

Quantum efficiency enhancement in film by making nanoparticles of polyfluorene

Ilkem Ozge Huyal, Tuncay Ozel, Donus Tuncel, and Hilmi Volkan Demir
Opt. Express 16(17) 13391-13397 (2008)

Structural and optical properties of conjugated polymer and carbon-based non-fullerene material blend films for photovoltaic applications

Lin Feng, Fei Wang, Meng-Si Niu, Fei Zheng, Peng-Qing Bi, Xiao-Yu Yang, Wei-Long Xu, and Xiao-Tao Hao
Opt. Mater. Express 7(3) 687-697 (2017)

Effects of annealing temperature on optical, morphological, and electrical characteristics of polyfluorene-derivative thin films on ITO glass substrate

Way Foong Lim, Hock Jin Quah, and Zainuriah Hassan
Appl. Opt. 55(6) 1198-1205 (2016)

Two-dimensional optical grating produced on a poly-p-phenylene vinylene/V₂O₅-gel film by ultrashort pulsed laser radiation

Guang S. He, Chichang J. Wung, Gen C. Xu, and Paras N. Prasad
Appl. Opt. 30(27) 3810-3817 (1991)

Solid-state cavity lasing from poly(p-phenylene vinylene)–silica nanocomposite bulk

Deepak N. Kumar, Jayant D. Bhawalkar, and Paras N. Prasad
Appl. Opt. 37(3) 510-513 (1998)