Vogelsang, Jan and Lupton, John M. (2012) Solvent Vapor Annealing of Single Conjugated Polymer Chains: Building Organic Optoelectronic Materials from the Bottom Up. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 3 (11). pp. 1503-1513. ISSN 1948-7185,
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Optoelectronic devices based on organic materials show a strong relationship between the morphological structure of the material and the function of the device. One of the grand challenges in improving the efficiencies of these devices is hence achieving morphological control throughout the entire course of processing. One of the most important postprocessing methods is solvent vapor annealing, which has repeatedly demonstrated its utility in improving the efficiency of organic-material-based devices by changing bulk-film morphology. This Perspective discusses the recent impact of single-molecule spectroscopy techniques in unraveling morphological changes and molecular dynamics and presents solvent vapor annealing as a tool to build organic optoelectronic materials from the bottom up. In particular, we discuss examples of how solvent vapor annealing at the single-chain level can be split into two different regimes, (i) the solvation regime, in which intrachain interactions and molecular dynamics during solvent vapor annealing can be probed, and (ii) the aggregation regime, in which the influence of interchain interactions can be probed. Finally, it will be shown that solvent vapor annealing in the aggregation regime can be used to build highly ordered mesoscopic objects with distinct properties such as long-range energy transfer.
Item Type: | Article |
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Uncontrolled Keywords: | SCANNING OPTICAL MICROSCOPY; MEH-PPV CHAINS; FLUORESCENCE CORRELATION SPECTROSCOPY; ELECTRONIC-ENERGY TRANSFER; SOLAR-CELLS; MOLECULE SPECTROSCOPY; THIN-FILMS; INTERCHAIN INTERACTIONS; MORPHOLOGY; POLYFLUORENE; |
Subjects: | 500 Science > 530 Physics |
Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group John Lupton |
Depositing User: | Dr. Gernot Deinzer |
Date Deposited: | 12 May 2020 06:03 |
Last Modified: | 12 May 2020 06:03 |
URI: | https://pred.uni-regensburg.de/id/eprint/18593 |
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