Kim, Gayeon (2021) Self-Assembly and Optical Spectroscopy of J-type Organic Nanostructures. Bachelor's Thesis, Physics.
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Abstract
This research is about investigating the properties of self-assembly in the organic nanostructure. We compare UV/VIS and absorption spectra of the CBT (carbonyl-bridged triarylamine) monomer, by dissolving in THF (tetrahydrofuran), and the J-aggregated nanofibres, in MCH (methylcyclohexane). The effects of concentration on the aggregation process were studied. Then, heat treatments on the assemblies were applied for 30, 60, 120 minutes to optimize the preparation of nanofibers and assess the effect by comparing spectral features. Though no change in the absorption spectrum was observed, the fluorescence increased in aggregated solution after 120 minutes of heat treatment. Lastly, the fluorescence decay lifetime was measured with a streak camera, and the delocalization length of aggregate was computed. The delocalization length was found in the range from 13 to 40 monomers at room temperature.
| Item Type: | Thesis (Bachelor's Thesis) |
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| Supervisor name: | Hildner, R.M. and Jansen, T.L.C. and Touloupas, I. |
| Degree programme: | Physics |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 14 Dec 2021 10:45 |
| Last Modified: | 15 Feb 2024 14:36 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/26366 |
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