期刊
MACROMOLECULES
卷 42, 期 6, 页码 2023-2030出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma801959w
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资金
- ESF-SONS2
- EPSRC (UK) [EP/C540336]
- Leverhulme Trust (UK)
- EPSRC [EP/E037526/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E037526/1] Funding Source: researchfish
Photovoltaic devices incorporating perylene-substituted polyisocyanide materials have been demonstrated, using blend systems with polythiophene- and polyfluorene-based conjugated polymers. Prototypical structures with nominal (1: 1) blend weight ratios of the polyisocyanide with poly(3-hexylthiophene) (P3HT) and poly(9,9'-dioctylfluorene-co-bis(N,N'-(4-butylphenyl))-bis(N,N'-phenyl)-1,4-phenyldiamine) (PFB) readily showed an order of magnitude improvement in power conversion efficiency, as compared to analogous blend architectures using a perylene (PDI) monomer, whereas the performance of strongly phase-separated F8BT (poly(9,9-dioctylfluorene-co-benzothidiazole) blend devices showed no such improvement. We propose that the use of polyisocyanide chains as a molecular template offers a method by which the morphology and connectivity of photovoltaic blends can be modified and enhanced.
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