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https://hdl.handle.net/20.500.14279/12973
Τίτλος: | Long thermal stability of inverted perovskite photovoltaics incorporating fullerene-based diffusion blocking layer | Συγγραφείς: | Galatopoulos, Fedros Papadas, Ioannis T. Armatas, Gerasimos S. Choulis, Stelios A. |
Major Field of Science: | Engineering and Technology | Field Category: | Materials Engineering | Λέξεις-κλειδιά: | Accelerated heat lifetime;Electrodes;Fullerene blocking layers;Perovskites;Thermal stability | Ημερομηνία Έκδοσης: | 23-Οκτ-2018 | Πηγή: | Advanced Materials Interfaces, 2018, vol. 5, no. 20 | Volume: | 5 | Issue: | 20 | Περιοδικό: | Advanced Materials Interfaces | Περίληψη: | In this article, the stability of inverted (p-i-n) perovskite solar cells is studied under accelerated heat lifetime conditions (60 °C, 85 °C, and N2 atmosphere). By using a combination of buffer layer engineering, impedance spectroscopy, and other characterization techniques, the interaction of the perovskite active layer with the top Al metal electrode through diffusion mechanisms is proposed as the major thermal degradation pathway for planar inverted perovskite photovoltaics (PVs) under 85 °C heat conditions. It is shown that by using thick solution processed fullerene buffer layer the perovskite active layer can be isolated from the top metal electrode and improve the lifetime performance of the inverted perovskite photovoltaics at 85 °C. Finally, an optimized reliable solution processed inverted perovskite PV device using thick fullerene diffusion blocking layer with over 1000 h accelerated heat lifetime performance at 60 °C is presented. | ISSN: | 21967350 | DOI: | 10.1002/admi.201800280 | Rights: | © The Authors. | Type: | Article | Affiliation: | Cyprus University of Technology University of Crete |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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Galatopoulos_et_al-2018-Advanced_Materials_Interfaces.pdf | Fulltext | 2.54 MB | Adobe PDF | Δείτε/ Ανοίξτε |
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