Performance of triple-cation perovskite solar cells under differentIndoor operating conditions

Jošt, Marko (author), Ajdič, Žan (author), Topič, Marko (author)

We systematically analyze triple-cation perovskite solar cells for indoor applications. A large number of devices with different bandgaps from 1.6 to 1.77 eV were fabricated, and their performance under 1-sun AM1.5 and indoor white light emitting diode (LED) light was compared. We find that the trends agree well with the detailed balance limit; however, the devices near the optimal bandgap (1.77 eV) perform worse due to the lower perovskite quality. Instead, we achieve the highest power conversion efficiency (PCE) of 34.0% under 870 lx with 1.67 eV and ▫${Al_2} {O_3}$▫ passivation. The perovskite with a bandgap of 1.71 eV is not far behind, with a high ▫$V_{OC}$▫ of 1.02 V. Measurements under different white LED color temperatures confirm that the highest PCE is achieved under the warmest colors. All measurements were carried out in a dedicated indoor setup that ensures the diffuse light typical of indoor environments and allows both short- and long-term measurements. In the best case, we observe no degradation during the 33-day test under simulated office conditions with regular switching on and off of the light and a ▫$T_{80}$▫ of 30 days under continuous illumination. The results were obtained from multiple batches, which corroborates our findings and gives them statistical relevance.

• Language: English
• Keywords: photovoltaics, perovskite solar cells, indoor operation, LED light sources
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: Str. 62195-62202
• Numbering: Vol. 16, iss. 45
• PID: 20.500.12556/RUL-164941
• UDC: 621.383.51:549.641
• ISSN on article: 1944-8252
• DOI: 10.1021/acsami.4c14736
• COBISS.SI-ID: 215382531
• Publication date in RUL: 18.11.2024

Record is a part of a journal

• Title: ACS applied materials & interfaces
• Shortened title: ACS appl. mater. interfaces
• Publisher: American Chemical Society
• ISSN: 1944-8252
• COBISS.SI-ID: 516049433

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: fotovoltaika, perovskitne sončne celice, delovanje pod notranjimi pogoji, LED viri svetlobe

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0415-2022
• Name: Fotovoltaika in elektronika