University of Groningen
Towards conjugated polymers with low exciton binding energy
Zhou, Difei
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Publication date: 2018
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Zhou, D. (2018). Towards conjugated polymers with low exciton binding energy. Rijksuniversiteit Groningen.
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Behorende bij het proefschrift
Towards conjugated polymers with low exciton binding energy
van
Difei Zhou
1. Office time is much cheaper and safer than lab time. Therefore, be generous in spending time in the office to validate ideas and plans.
2. In view of the importance of well-defined structural features for photovoltaic materials, bis(pinacolato)diboron-mediated homopolymerization may be a solid strategy, particularly when the monomers are symmetric.
3. Before donor-acceptor cross conjugation becomes a recognized design principle, it is vital to see if it leads to fundamentally unique properties, and what can be achieved with it. Studying the exciton binding energy is a good start.
4. Since charge delocalization is crucial for reducing exciton binding energy, donor moieties with 2-D conjugation may be good building blocks.
5. Future study on CC1 (Chapter 4) analogues is advised to employ thieno[3,4-d]thiazole, rather than thieno[3,4-b]thiophene as the donor-acceptor bridge, since the former is more stable and preferable in leveling molecular frontier orbitals.
6. It’s very easy to underestimate the challenges in synthesizing conjugated polymers, especially when facing fundamentally new structures. This brings structure simplicity to one of the top priorities in the design phase.
7. When a new material does not exhibit expected properties, it does not mean that the design was not rational.
8. We can collect quite some good clues for materials design. It will be fun and instructive, if one fuses all these design principles into one structure.
9. Luck is important in chemistry discoveries. It sits in a chair just a little lower than the seat of pure logic.
