Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Publication date: 11th May 2021
Organic photovoltaics (OPV) have recently gain a tremendous attention as indoor dim-light energy harvesting to powering the devices for Internet of Things application.[1] Nevertheless, the photodegradation mechanism under indoor artificial light is rarely investigated, which is essential for its successful commercialization. In this work, we comparatively study the lifetime and photodegradation behavior of OPV based on PTB7-Th:PC70BM blend under different illumination condition: standard AM 1.5G and LED 2700K.[2] OPV under LED illumination show simultaneously enhance the power conversion efficiency (PCE) of up to 16% and long T80 lifetime of 3,060 min compare to those of OPV illuminated under AM 1.5G condition with PCE of 9.6% and T80 lifetime of only 260 min. Impedance spectroscopy analysis with 3RC equivalent circuit model reveal in which layer is affected most by different illumination aging.
The work of Alfonsina A. A. Torimtubun was financially supported by the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No. 713679. This work was partially supported by the 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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