N-type polymer semiconductors incorporating para, meta, and ortho-carborane in the conjugated backbone
Nugraha, Mohamad Insan
Anthopoulos, Thomas D.
KAUST DepartmentKAUST Solar Center (KSC), Physical Science and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
KAUST Solar Center (KSC)
Physical Science and Engineering (PSE) Division
Material Science and Engineering Program
Embargo End Date2023-01-06
Permanent link to this recordhttp://hdl.handle.net/10754/674964
MetadataShow full item record
AbstractWe report on three novel n-type conjugated polymer semiconductors incorporating carborane in the polymer backbone and demonstrate their applicability in optoelectronic devices. Comparing the optoelectronic properties of para-, meta-, and ortho-carborane isomers revealed similar energetic characteristics between the different polymers, with the carborane unit acting as a “conjugation breaker”, confining electron delocalisation to the conjugated moieties. The fabrication of all-polymer organic photovoltaic (OPV) devices and thin-film transistors (TFTs) revealed some differences in device performance between the polymers, with the meta-carborane based polymer exhibiting superior performance in both OPV and TFT devices.
CitationAniés, F., Qiao, Z., Nugraha, M. I., Basu, A., Anthopoulos, T. D., Gasparini, N., & Heeney, M. (2022). N-type polymer semiconductors incorporating para, meta, and ortho-carborane in the conjugated backbone. Polymer, 240, 124481. doi:10.1016/j.polymer.2021.124481
SponsorsThe authors thank the Engineering and Physical Sciences Research Council (EPSRC) (EP/L016702/1 and EP/T028513/1), the Royal Society and the Wolfson Foundation (Royal Society Wolfson Fellowship), The Wilkinson Charitable Foundation, and King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2019-CRG8-4095.3, No. OSR-2020-CRG8-4095.2, and No. OSR-2018-CARF/CCF-3079 for funding. The authors also thank Charlotte Rapley for her assistance in obtaining thermal measurements data.