Inducing molecular orientation in solution-processed thin films of fluorene-bithiophene-based copolymer: thermal annealing vs. solvent additive

• Published in: RSC advances Vol. 14; no. 13; pp. 9051 - 9061
• Main Authors: Coutinho Pereira, Cassia Ferreira, Borges, Bruno G. A. L., Sousa, Karlison R. A., Holakoei, Soheila, Roman, Lucimara S., Araujo, C. Moyses, Cremona, Marco, Koehler, Marlus, Marchiori, Cleber F. N., Rocco, Maria Luiza M.
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 14.03.2024; The Royal Society of Chemistry
• Subjects: Annealing; Augers; Charge transfer; Chemistry; Copolymers; Dichroism; Electronic structure; femtosecond; Fine structure; Fysik; Heat treatment; Molecular dynamics; Morphology; Optoelectronic devices; Photoelectrons; Physics; poly(thiophene); polymer solar-cells; Solvents; Spectra; Spectrum analysis; stimulated ion desorption; Sulfur; Thin films; thiophene; transfer dynamics; X ray absorption; X ray photoelectron spectroscopy; x-ray photoelectron

A deep understanding of the factors influencing the morphology of thin films based on conjugated polymers is essential to boost their performance in optoelectronic devices. Herein, we investigated the electronic structure and morphology of thin films of the copolymer poly(9,9-dioctyl-fluorenyl- co -...