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https://hdl.handle.net/20.500.14279/18543| Τίτλος: | Nanoparticulate metal oxide top electrode interface modification improves the thermal stability of inverted perovskite photovoltaics | Συγγραφείς: | Papadas, Ioannis T. Galatopoulos, Fedros Armatas, Gerasimos S. Tessler, Nir Choulis, Stelios A. |
Major Field of Science: | Engineering and Technology | Field Category: | Materials Engineering | Λέξεις-κλειδιά: | Nanoparticulate metal oxides;Interfaces;Charge traps density;Electrodes;Impedance spectroscopy;Degradation mechanisms;Accelerated lifetime;Thermal stability;Inverted perovskites solar cells | Ημερομηνία Έκδοσης: | 14-Νοε-2019 | Πηγή: | Nanomaterials, 2019, vol. 9, no. 11, articl. no. 1616 | Volume: | 9 | Issue: | 11 | Περιοδικό: | Nanomaterials | Περίληψη: | Solution processed γ-Fe2O3 nanoparticles via the solvothermal colloidal synthesis in conjunction with ligand-exchange method are used for interface modification of the top electrode in inverted perovskite solar cells. In comparison to more conventional top electrodes such as PC(70)BM/Al and PC(70)BM/AZO/Al, we show that incorporation of a γ-Fe2O3 provides an alternative solution processed top electrode (PC(70)BM/γ-Fe2O3/Al) that not only results in comparable power conversion efficiencies but also improved thermal stability of inverted perovskite photovoltaics. The origin of improved stability of inverted perovskite solar cells incorporating PC(70)BM/ γ-Fe2O3/Al under accelerated heat lifetime conditions is attributed to the acidic surface nature of γ-Fe2O3 and reduced charge trapped density within PC(70)BM/ γ-Fe2O3/Al top electrode interfaces. | URI: | https://hdl.handle.net/20.500.14279/18543 | ISSN: | 20794991 | DOI: | 10.3390/nano9111616 | Rights: | © by the authors. Attribution-NonCommercial-NoDerivs 3.0 United States |
Type: | Article | Affiliation: | Cyprus University of Technology University of Crete Technion-Israel Institute of Technology |
| Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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| Αρχείο | Περιγραφή | Μέγεθος | Μορφότυπος | |
|---|---|---|---|---|
| nanomaterials-09-01616.pdf | Fulltext | 2.87 MB | Adobe PDF | Δείτε/ Ανοίξτε |
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