Optical properties of nanowires based on a blend of poly (9,9-dioctylfluorene) [PFO] and poly(9,9-dioctyl fluorene-alt-benzothiadiazole) [F8BT]

Khalil, G. E.; Adawi, A. M.; Lidzey, D. G.

Abstract

Near-field and far-field optical microscopy are used to study the optical properties of nanowires based on a blend of 95% poly (9,9-dioctylfluorene) [PFO] doped with 5% poly (9,9-dioctylfluorene-alt-benzothiadiazole) [F8BT]. Single nanowires were imaged and optical investigations revealed that they act as nanoscale optical waveguides. Investigation using polarization-resolved far-field PL spectroscopy revealed emission from the nanowires was strongly anisotropic having preferred axial polarization. This suggests that a significant number of the polymer chains are oriented along the nanowire axis.

Citation

Khalil, G. E., Adawi, A. M., & Lidzey, D. G. (2020). Optical properties of nanowires based on a blend of poly (9,9-dioctylfluorene) [PFO] and poly(9,9-dioctyl fluorene-alt-benzothiadiazole) [F8BT]. Physica E: Low-dimensional Systems and Nanostructures, 118, Article 113829. https://doi.org/10.1016/j.physe.2019.113829

• Journal Article Type: Article
• Acceptance Date: Nov 18, 2019
• Online Publication Date: Nov 21, 2019
• Publication Date: 2020-04
• Deposit Date: Feb 6, 2020
• Publicly Available Date: Nov 22, 2020
• Journal: Physica E: Low-Dimensional Systems and Nanostructures
• Print ISSN: 1386-9477
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 118
• Article Number: 113829
• DOI: https://doi.org/10.1016/j.physe.2019.113829
• Keywords: Polarization-resolved PL spectroscopy; Nanodevices; Organic semiconductors; Optical waveguide; Nanowire; Near and Far-field PL spectroscopy
• Public URL: https://hull-repository.worktribe.com/output/3225910