Impact of Thermal Annealing on the Performance of Inverted Polymer:Non-Fullerene-based Solar Cells
Alfonsina Abat Amelenan Torimtubun a, José G. Sanchez a, Victor S. Balderrama b, Magali Estrada c, Josep Pallarès a, Lluis F. Marsal a
a Department of Electronic, Electric and Automatic Engineering, Universitat Rovira I Virgili, 43007 Tarragona, Spain
b Catedra-CONACYT, Microtecnologias, Centro de Ingenieria y Desarollo Industrial, 76125 Santiago de Queretaro, Mexico
c Seccion de Electronica del Estado Solido, Departamento de Ingenieria Electrica, CINVESTAV, 07360 Mexico City, Mexico
Online Conference
Proceedings of NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals (NFASC)
Online, Spain, 2021 February 3rd - 4th
Organizers: Natalie Banerji and Feng Gao
Poster, Alfonsina Abat Amelenan Torimtubun, 017
Publication date: 25th January 2021

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 by the Agency for Management of University and Research Grants (AGAUR) ref. 2017-SGR-1527 and from the Catalan Institution for Research and Advanced Studies (ICREA) under the ICREA Academia Award.


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