Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 230, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2021.111265
Keywords
Indoor light characterization; ZnO ETL; p-DTS(FBTTh2)(2):PC70BM solar Cells; Solution-processed small-molecule solar cell; Low light level degradation study; Solar cells equivalent circuit model
Funding
- SEP-CINVESTAV in Mexico [32]
- Spanish Ministerio de Ciencia, Innovacion y Universidades (MICINN/FEDER) [RTI2018-094040-B-I00]
- Agency for Management of University and Research Grants (AGAUR) [2017SGR-1527]
- ICREA
- CONACYT [587630, 295606]
- Catedras CONACYT para Jovenes Investigadores [314841, 2]
- Project FORDECYT [297497]
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In this study, the stability of p-DTS(FBTTh2)(2):PC70BM inverted organic solar cells with two types of solution-processed electron transport layers (ETLs) under indoor light and AM 1.5 G illumination spectrum was investigated. The results showed that both ETLs demonstrated good performance and stability under different lighting conditions.
In this work, we fabricate, characterize and present a stability study of p-DTS(FBTTh2)(2):PC70BM inverted organic solar cells (iOSCs) with two different solution-processed electron transport layers (ETLs), PFN and ZnO, under indoor light and AM 1.5 G illumination spectrum. A warm white color light-emitting diode was used as the indoor light source. Under the luminance of 1000 lux, a maximum power conversion efficiency (PCE) of 10.85% and maximum power density (MPP) of 45.1 mu W/cm(2) were obtained for cells with PFN as ETL. After 1536 h of constant indoor light illumination, the PCE remained above 70% of the original value. The best stability of encapsulated devices, under AM 1.5 illumination spectrum was also observed for these cells, which still maintained a PCE above 60% after 6000 h.
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