Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Highly Efficient Indoor Organic Solar Cells by Voltage Loss Minimization through Fine-Tuning of Polymer Structures
Δημιουργός/Συγγραφέας:	Singh R. [EL] Χώχος, Χρήστος[EN] Chochos, Christos [EL] Γρηγορίου, Βασίλης Γ.[EN] Gregoriou, Vasilis G. Nega A.D. Kim M. Kumar M. Shin S.-C. Kim S.H. Shim J.W. Lee J.-J.
Εκδότης:	American Chemical Society
Ημερομηνία:	2019
Γλώσσα:	Αγγλικά
ISSN:	1944-8244
DOI:	10.1021/acsami.9b12018
Άλλο:	PubMed ID: 31523951
Περίληψη:	Herein, we report a detailed study on the optoelectronic properties, photovoltaic performance, structural conformation, morphology variation, charge carrier mobility, and recombination dynamics in bulk heterojunction solar cells comprising a series of donor-acceptor conjugated polymers as electron donors based on benzodithiophene (BDT) and 5,8-bis(5-bromothiophen-2-yl)-6,7-difluoro-2,3-bis(3-(octyloxy)phenyl)quinoxaline as a function of the BDT's thienyl substitution (alkyl (WF3), alkylthio (WF3S), and fluoro (WF3F)). The synergistic positive effects of the fluorine substituents on the minimization of the bimolecular recombination losses, the reduction of the series resistances (RS), the increment of the shunt resistances (RSh), the suppression of the trap-assisted recombination losses, the balanced charge transport, the finer nanoscale morphology, and the deeper highest occupied molecular orbital (EHOMO) are manifested versus the alkyl and alkylthio substituents. According to these findings, the WF3F:[6,6]-phenyl-C71-butyric acid methyl ester (PC71BM)-based organic photovoltaic device is a rare example that features a high power conversion efficiency (PCE) of 17.34% under 500 lx indoor light-emitting diode light source with a high open-circuit voltage (VOC) of 0.69 V, due to the suppression of the voltage losses, and a PCE of 9.44% at 1 sun (100 mW/cm2) conditions, simultaneously.
Τίτλος πηγής δημοσίευσης:	ACS Applied Materials and Interfaces
Τόμος/Κεφάλαιο:	11
Τεύχος:	40
Σελίδες:	36905-36916
Θεματική Κατηγορία:	[EL] Οργανική χημεία[EN] Organic chemistry
Λέξεις-Κλειδιά:	coherence length conjugated polymers indoor lighting conditions organic photovoltaic devices recombination losses series and shunt resistances wide-angle X-ray scattering
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2019 American Chemical Society.
Σημειώσεις:	Horizon 2020 Framework Programme, H2020: 761112; Ministry of Science, ICT and Future Planning, MSIP: NRF-2015M1A2A2054996, NRF-2016M1A2A2940912. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 761112 (PRESTIGE) and Technology Development Program to Solve Climate Changes of the National Research Foundation, Funded by the Ministry of Science, ICT & Future Planning (grant NRF-2016M1A2A2940912 and NRF-2015M1A2A2054996).
Εμφανίζεται στις συλλογές:	Ινστιτούτο Χημικής Βιολογίας - Επιστημονικό έργο