Poly[(9,9-dioctylfluorene)-2,7-diyl-alt-(4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole)-2′,2″-diyl]:PCBM thin films: Molecular self-assembly, hexyl substituent groups and sheet resistance relationships

Silva, Daniel José da

doi:10.1016/j.synthmet.2016.11.041

Synthetic Metals

2017

DOI: 10.1016/j.synthmet.2016.11.041

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Poly[(9,9-dioctylfluorene)-2,7-diyl-alt-(4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole)-2′,2″-diyl]:PCBM thin films: Molecular self-assembly, hexyl substituent groups and sheet resistance relationships

Daniel José da Silva

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Cited by 3 publications

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Solvent effects on the morphology and electrical conductivity of a D‐A random copolymer with low band gap

Silva

Wang

2018

J Polym Sci B Polym Phys

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D-A copolymer systems have unique characteristics, such as low band gap and ambipolar nature, which are important to design electronic polymer devices. In this contribution, we synthesized and characterized a D-A random copolymer containing bis-3-hexylthiophene-benzothiadiazole as acceptor unit and 9,9-dioctylfluorene as donor unit. We show that the polymeric film morphology depends of the Hansen solubility parameters, evaporation rate, and surface tension of the solvent. Chloroform, toluene, and 1,2,4-trichlorobenzene (TCB) promote the formation of self-assembled structures due to breath-figure mechanism. In contrast, THF causes aggregation and phase separation that affect negatively the electrical conductivity of the copolymer film. Among the solvents analyzed, TCB is the one with the highest molecular interaction with the copolymer synthetized in this work.

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Solvent effects on the morphology and electrical conductivity of a D‐A random copolymer with low band gap

Silva

Wang

2018

J Polym Sci B Polym Phys

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Omicron SARS-CoV-2 antiviral on poly(lactic acid) with nanostructured copper coating: Wear effects

Silva

Duran

Fonseca

et al. 2023

Applied Surface Science

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Methoxyethoxy-substituted coumarin-benzimidazole: Substituent group positions adjusted the self-assembly, optical properties and ions sensor

Liu

et al. 2019

Journal of Luminescence

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Poly[(9,9-dioctylfluorene)-2,7-diyl-alt-(4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole)-2′,2″-diyl]:PCBM thin films: Molecular self-assembly, hexyl substituent groups and sheet resistance relationships

Cited by 3 publications

References 57 publications

Solvent effects on the morphology and electrical conductivity of a D‐A random copolymer with low band gap

Solvent effects on the morphology and electrical conductivity of a D‐A random copolymer with low band gap

Omicron SARS-CoV-2 antiviral on poly(lactic acid) with nanostructured copper coating: Wear effects

Methoxyethoxy-substituted coumarin-benzimidazole: Substituent group positions adjusted the self-assembly, optical properties and ions sensor

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