Abstract
In this work, a new n-type polymer based on a thiazole-diketopyrrolopyrrole unit has been synthesized through direct (hetero)arylation polycondensation. The molar mass has been optimized by systematic variation of the the monomer concentration. Optical and electrochemical properties have been studied. They clearly suggested that this polymer possess a high electron affinity together with a very interesting absorption band, making it a good non-fullerene acceptor candidate. As a consequence, its charge transport and photovoltaic properties in a blend with the usual P3HT electron-donating polymer have been investigated.
Highlights
Since the 1980s and the seminal work on light-emitting organic diodes by Tang and van Slyke at Kodak, the interest of the scientific community in organic semiconductors (OSCs) has been growing steadily [1,2]
The P(TzDPP-Th) exhibits a rather high electron affinity that makes it a possible candidate to be used as an electron-transporting material and potentially as a non-fullerene acceptor (NFA) in Cyclic of P(TzDPP-Th) infilm thin filmpositioned recorded in be acetonitrile
That in general, the charge transport properties are improved when the polymer molar mass is it may suggest that higher molecular weights per number (Mn) batches could have a lower miscibility with P3HT, that in increased
Summary
Since the 1980s and the seminal work on light-emitting organic diodes by Tang and van Slyke at Kodak, the interest of the scientific community in organic semiconductors (OSCs) has been growing steadily [1,2]. Organic light-emitting diodes (OLEDs) are typical electronic components for the display applications market, and organic photovoltaic (OPV) devices exhibit power conversion efficiencies (PCE) as high as those of standard amorphous silicon-based devices [3,4] Despite these obvious progresses in OSC science, the development of n-type materials lags far behind that of their p-type counterparts. The thiazole-based DPP molecule degrades during the bromination step (the solution becomes uncolored, probably due to lactam opening under acidic conditions) In this context, the direct (hetero)arylation polymerization (DHAP) appears to be a very promising and efficient synthetic tool, allowing skipping of these functionalization steps. We report the preliminary evaluation of their electronic properties, through studies of their application as organic field effect transistors and as non-fullerene acceptors (NFA) in organic solar cells
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
