Author, as appears in the article.: Torimtubun, Alfonsina Abat Amelenan; Sanchez, Jose G.; Pallares, Josep; Marsal, Lluis F.;

Department: Enginyeria Electrònica, Elèctrica i Automàtica

URV's Author/s: Marsal Garví, Luis Francisco / Pallarès Marzal, Josep / SANCHEZ LÓPEZ, JOSÉ GUADALUPE / Torimtubun, Alfonsina Abat Amelenan

Keywords: Tiox Thorium compounds Sun Standards Stability Spectroscopy Prospects Polymer solar cells Polymer solar cell (pscs) Photostability Performance Organic photovoltaics Organic light emitting diodes (oled) Operational lifetime Low-power consumption Lighting Light sources Light emitting diodes Light Led light Layer Inverted polymer solar cells Impedance spectroscopy Impedance High power conversion Generation Equivalent circuits Equivalent circuit model Energy harvesting Degradation mechanism Degradation Conversion efficiency Am 1.5g Am 1 5g

Abstract: The use of polymer solar cells (PSCs) for indoor dim-light energy harvesting has attracted significant interest for low power consumption electronics such as the Internet of Things. However, the photostability study and degradation mechanism under indoor artificial light is far behind than those under full sun illumination (standard AM 1.5G), which is crucial for the successful commercialization of indoor PSCs. Herein, the operational lifetime and photodegradation mechanism of PTB7-Th:PC70BM-based inverted PSCs degraded under standard AM 1.5G and 1000 lux LED 2700K light sources were compared. A high power conversion efficiency (PCE) of up to 16.19% and a long operational lifetime (T-80) of 3060 min were achieved by LED-irradiated devices, higher and more stable than that of AM 1.5G-irradiated devices with PCE of 9.98% and T-80 of only 260 min. Using impedance spectroscopy and three resistive-capacitive equivalent circuit model, we were able to identify the most suffered layer. Our results demonstrate that PSCs have potential practical applications as high performance and a high stable indoor power source.

Thematic Areas: Engineering, electrical & electronic Electronic, optical and magnetic materials Electrical and electronic engineering Biotechnology

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: lluis.marsal@urv.cat josep.pallares@urv.cat alfonsina.abat@estudiants.urv.cat alfonsina.abat@estudiants.urv.cat

Author identifier: 0000-0002-5976-1408 0000-0001-7221-5383 0000-0001-8012-4772 0000-0001-8012-4772

Record's date: 2023-03-11

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://ieeexplore.ieee.org/document/9328497

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Ieee Journal Of The Electron Devices Society. 9 484-491

APA: Torimtubun, Alfonsina Abat Amelenan; Sanchez, Jose G.; Pallares, Josep; Marsal, Lluis F.; (2021). Photostability Study of Inverted Polymer Solar Cells Under AM 1.5G and LED Illumination via Impedance Spectroscopy. Ieee Journal Of The Electron Devices Society, 9(), 484-491. DOI: 10.1109/JEDS.2021.3052719

Article's DOI: 10.1109/JEDS.2021.3052719

Entity: Universitat Rovira i Virgili

Journal publication year: 2021

Publication Type: Journal Publications