Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο:
https://hdl.handle.net/123456789/1407| Τύπος: | Αναρτημένη ανακοίνωση (poster) |
| Τίτλος: | Improved environmental stability of perovskite photoactive layer mixed with functionalized porphyrin molecules |
| Συγγραφέας: | [EL] Σουλτάτη, Αναστασία[EN] Soultati, Anastasia [EL] Τσεβάς, Κωνσταντίνος[EN] Tsevas, Konstantinos [EL] Κουτσολέλος, Αθανάσιος[EN] Coutsolelos, Athanassios [EL] Βασιλοπούλου, Μαρία[EN] Vasilopoulou, Maria |
| Ημερομηνία: | 11/03/2021 |
| Περίληψη: | Photovoltaic devices based on organo-metal halide perovskites have not yet reached the theoretically predicted power conversion efficiency while they still exhibit poor environmental stability, due to the penetration of moisture and oxygen into the perovskite absorber which accelerates the device degradation1. In this work, we demonstrate the use of appropriately porphyrin molecules with functional groups as dopants of methylammonium lead triiodide (MAPbI3) precursor. In particular, the stability upon exposure to environmental conditions for 720 hours of the prepared undoped and porphyrin-doped perovskite films was investigated. XRD pattern of the undoped perovskite film presented a large increase in intensity of the PbI2 peak as well as significant loss of crystallinity. On the other hand, the reduction in crystallinity of the PbI2 peak is lower in the porphyrin-doped perovskite, suggesting that the enhanced stability of doped film is attributed to the hydrophobic nature of the dye. The effects of quicker degradation of the undoped perovskite film were also detected by UV-Vis absorption measurements, where significant changes in the shape and intensity of the absorption spectrum of the undoped film were observed, while improved homogeneity and larger grain size were appeared in the surface of the porphyrin-doped film after 720 hours, as revealed from scanning electron microscopy measurements. |
| Γλώσσα: | Αγγλικά |
| Τόπος δημοσίευσης: | Αθήνα, Ελλάδα |
| Σελίδες: | 1 |
| Θεματική κατηγορία: | [EL] Μηχανική και Τεχνολογίες, άλλοι τομείς[EN] Engineering and Technologies, miscellaneous |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2021 The Authors |
| Διατίθεται ανοιχτά στην τοποθεσία: | http://jupiter.chem.uoa.gr/acac2020/4-3.pdf |
| Τίτλος πηγής δημοσίευσης: | Athens Conference on Advances in Chemistry (ACAC2020) Book of Abstacts |
| Όνομα εκδήλωσης: | Athens Conference on Advances in Chemistry (ACAC2020) |
| Τοποθεσία εκδήλωσης: | Athens, Greece |
| Ημ/νία έναρξης εκδήλωσης: | 10/03/2021 |
| Ημ/νία λήξης εκδήλωσης: | 14/03/2021 |
| Σημειώσεις: | ACAC 2020 SCIENTIFIC PROGRAM: http://www.acac2020.chem.uoa.gr/ACAC%20Full.pdf This research is co-financed by Greece and the European Union (European Social Fund- ESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning» in the context of the project “Reinforcement of Postdoctoral Researchers - 2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ). |
| Εμφανίζεται στις συλλογές: | Μεταδιδακτορικοί ερευνητές |
Αρχεία σε αυτό το τεκμήριο:
| Αρχείο | Περιγραφή | Σελίδες | Μέγεθος | Μορφότυπος | Έκδοση | Άδεια | |
|---|---|---|---|---|---|---|---|
| acac2020BookOfAbstracts.pdf | ΕΡΕΥΝΗΤΙΚΗ ΥΠΟΤΡΟΦΙΑ | 672.5 kB | Adobe PDF | - |  | Δείτε/ανοίξτε |