Proceedings of Online nanoGe Fall Meeting 20 (OnlineNFM20)
Publication date: 4th October 2020
The effects of thermal annealing on the photovoltaic properties of inverted polymer solar cells based on polymer donor PBDB-T and non-fullerene small molecule acceptor ITIC-M in the device structure of ITO/TiO2/PBDB-T:ITIC-M/V2O5/Ag are investigated. We found that device annealed at 100ºC showed the best performance under AM 1.5G illumination. The EQE and impedance spectra reveal that the highest EQE spectra of up to 80% and the lowest charge-transfer resistances were obtained by 100ºC-annealed device. These results indicate the importance of the thermal annealing on the charge-transfer at the active layer/vanadium oxide interface.
European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 713679; Spanish Ministerio de Ciencia, Innovación y Universidades (MICINN/FEDER) RTI2018-094040-B-I00; Agency for Management of University and Research Grants (AGAUR) ref. 2017-SGR-1527; Catalan Institution for Research and Advanced Studies (ICREA) under the ICREA Academia Award; CONACyT Project in Mexico under Grant 237213. The work of Víctor S. Balderrama was supported by the Project “Cátedras CONACYT Para Jóvenes Investigadores”.
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