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Photovoltaic parameters and stability study of HTM-free mixed-cation perovskite solar cells by incorporating additives to absorbing layers
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Photovoltaic parameters and stability study of HTM-free mixed-cation perovskite solar cells by incorporating additives to absorbing layers

Doosthosseini, F

Photovoltaic parameters and stability study of HTM-free mixed-cation perovskite solar cells by incorporating additives to absorbing layers

Doosthosseini, F ; Sharif University of Technology | 2020

213 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/s10854-020-03283-0
  3. Publisher: Springer , 2020
  4. Abstract:
  5. In this study, quick route-coating is practiced to substitute methyl ammonium (MA) cation with formamidinium (FA) at different ratios. Through optimizing the MA:FA ratio, a maximum power conversion efficiency (PCE) of 8.31% is achieved for holes transporting material-free MA0.8FA0.2PbI3 mixed PSCs with the JSC of 19.02 mA/cm2, VOC of 0.859 V and FF of 50.88%. Then, to improve the performance, stability and carrier transport dynamic, various additives (PVA, PVP, PEG and EC) are incorporated into the perovskite layer. The treatment of perovskites with additives has proved to cause significant changes in the surface roughness, charge accumulation, charge transport, charge transport resistance, photovoltaic performance and cell stability. PCE of the PSCs mixed with PVA, PVP, EC and PEG optimally reaches 12.76%, 11.28%, 10.38% and 8.92%, respectively. Among the additives, EC and PVP provide better stability owing to the excellent interaction between the functional group of the additives and the perovskite. Surface modification and charge transport also occur better with those two additives. © 2020, Springer Science+Business Media, LLC, part of Springer Nature
  6. Keywords:
  7. Carrier transport ; Lead compounds ; Perovskite ; Perovskite solar cells ; Positive ions ; Solar power generation ; Stability ; Surface roughness ; Absorbing layers ; Carrier transport dynamics ; Charge accumulation ; Perovskite layers ; Photovoltaic parameters ; Photovoltaic performance ; Transport resistance ; Transporting materials ; Additives
  8. Source: Journal of Materials Science: Materials in Electronics ; Volume 31, Issue 9 , 2020 , Pages 7123-7132
  9. URL: https://link.springer.com/article/10.1007/s10854-020-03283-0