Journal article
Phthalimide and naphthalimide: Effect of end-capping groups on molecular properties and photovoltaic performance of 9-fluorenone based acceptors for organic solar cells
TT Do, J Subbiah, S Manzhos, DJ Jones, JM Bell, P Sonar
Organic Electronics | ELSEVIER | Published : 2018
Abstract
A novel 2-butyloctyl (BO) substituted phthalimide (PI) end-capped fluorenone [PI-FN-PI (BO)] non-fullerene electron acceptor for organic photovoltaics has been designed and synthesized to study the effect of end-capping groups on the optoelectronic properties compared to our earlier reported naphthalimide (NAI) terminated fluorenone NAI-FN-NAI (BO) reference compound. The electron withdrawing terminal NAI groups were replaced by a PI group in order to evaluate the influence of electron affinity of such group on the lowest occupied molecular orbital (LUMO) energy level and other optoelectronic properties. The newly synthesized PI-FN-PI (BO) with a 2-butyloctyl alkyl chain is sparingly soluble..
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Awarded by Australian Research Council
Funding Acknowledgements
T.T.D is thankful to QUT for offering here QUTPRA scholarship to conduct her research work. Some of the data reported in this paper were obtained at the Central Analytical Research Facility operated by the Institute for Future Environments (QUT). Access to CARF was supported by generous funding from the Science and Engineering Faculty (QUT). P.S. is thankful to QUT for the financial support from the Australian Research Council for the Future Fellowship (FT130101337) and QUT core funding (QUT/322120-0301/07). S. M. is supported by the Ministry of Education -Singapore.