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Sánchez, José G.Author
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Photostability Study of Inverted Polymer Solar Cells under AM 1.5G and LED Illumination via Impedance Spectroscopy

Publicated to:Ieee Journal Of The Electron Devices Society. 9 (-): 484-491 - 2021-01-01 9(-), DOI: 10.1109/JEDS.2021.3052719

Authors: Torimtubun, Alfonsina Abat Amelenan; Sanchez, Jose G; Pallares, Josep; Marsal, Lluis F

Affiliations

Barcelona Inst Sci & Technol ICIQ BIST, Inst Chem Res Catalonia, Tarragona 43007, Spain - Author
Barcelona Institute of Science and Technology (BIST) - Author
Univ Rovira & Virgili, Dept Elect Elect Engn & Automat, Tarragona 43007, Spain - Author
Universitat Rovira i Virgili - Author

Abstract

CCBY 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 (T80) 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 T80 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.

Keywords
5gam 1degradationgenerationimpedanceimpedance spectroscopylayerled lightlight sourceslightingperformancephotostabilitypolymer solar cellsprospectsstabilitystandardssuntioxAm 1.5gDegradationImpedanceImpedance spectroscopy.Led lightLight emitting diodesLight sourcesLightingOrganic photovoltaicsPhotostabilityPolymer solar cellsStandardsSun

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Ieee Journal Of The Electron Devices Society due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2021, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Electrical and Electronic Engineering. Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Engineering, Electrical & Electronic.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.05, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Apr 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-04-25, the following number of citations:

  • WoS: 7
  • Scopus: 7
  • OpenCitations: 6
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-04-25:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 12 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.