Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Unraveling the complex nanomorphology of ternary organic solar cells with multimodal analytical transmission electron microscopy
Δημιουργός/Συγγραφέας:	Rechberger, Stefanie Gasparini, Nicola Singh, Ranbir Kim, Min [EL] Χώχος, Χρήστος[EN] Chochos, Christos [EL] Γρηγορίου, Βασίλης Γ.[EN] Gregoriou, Vasilis G. Cho, Kilwon Brabec, Christoph J. Ameri, Tayebeh Spiecker, Erdmann
Ημερομηνία:	2020
Γλώσσα:	Αγγλικά
ISSN:	2367-198X 2367-198X
DOI:	10.1002/solr.202000114
Περίληψη:	Elucidating the complex materials distribution in the active layers of ternary organic solar cells is one of the greatest challenges in the field of organic photovoltaics. Knowledge of the nanomorphology is key to understanding photophysical processes (e.g., charge separation, adjustment of the recombination mechanism, and suppression of the radiationless and energetic losses) and thus improving the device performance. Herein, for the first time, the successful discrimination and spatial mapping of the active layer components of a ternary organic solar cell are demonstrated using analytical transmission electron microscopy. The material distribution of all three organic components is successfully visualized by multimodal imaging using complementary electron energy loss signals. A complete picture of the morphological aspects can be gained by studying the lateral and cross-sectional morphology as well as the morphology evolution as a function of the mixing ratio of the polymers. Finally, a correlation between the morphology, photophysical processes, and device performance of the ternary and the reference binary system is achieved, explaining the differences of the power conversion efficiency between the two systems.
Τίτλος πηγής δημοσίευσης:	Solar RRL
Τόμος/Κεφάλαιο:	4
Τεύχος:	6
Σελίδες:	2000114
Θεματική Κατηγορία:	[EL] Οργανική χημεία[EN] Organic chemistry [EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Χημική τεχνολογία[EN] Chemical technolgy
Λέξεις-Κλειδιά:	Device performance Energy-filtered transmission electron microscopy Morphology Ternary organic solar cells Transmission electron microscopy
Κάτοχος πνευματικών δικαιωμάτων:	Copyright © 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://onlinelibrary.wiley.com/doi/10.1002/solr.202000114
Ηλεκτρονική διεύθυνση περιοδικού (link) :	https://onlinelibrary.wiley.com/journal/2367198x
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο