RT Journal Article
T1 Low-bandgap oligothiophene-naphthalimide oligomeric semiconductors for thermoelectric applications
A1 Alonso Navarro, Matías  J.
A1 Zapata Arteaga, Osnat
A1 Riera Galindo, Sergi
A1 Guo, Jiali
A1 Perevedentsev, Aleksandr
A1 Gutiérrez, Edgar
A1 Sebastián Reparaz, Juan
A1 Ramos, María del Mar
A1 Müller, Christian
A1 Martín, Jaime
A1 Más Torrent, Marta
A1 Segura Castedo, José Luis
A1 Campoy Quiles, Mariano
AB State-of-the-art p-type organic conjugated polymers are mostly thiophene-based semiconductors. Still, novel chemical design and a fresh perspective on different polymer backbones could pave the way for new high-performing materials and a deep understanding of donor-acceptor conjugated assemblies. Herein we designed and synthesized two novel electroactive oligomeric materials based on a donor terthiophene unit endowed with a strong electron-withdrawing naphthalimide unit. This molecular assembly has been polymerized using a palladium cross-coupling reaction with two different linkers, 1,1,1,2,2,2-hexabutyldistannane and (4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b’]dithiophene-2,6-diyl)bis(trimethylstannane), to obtain the target polymers NIP3T-poly and NIP3T-BDT-poly, respectively. Both polymers exhibited an extended absorption up to 1000 nm and higher hole field-effect mobilities of up to 1.8 x 10-3 cm2V-1s-1, in comparison to the molecular assembly NIP3T, and precisely tuned energy levels that make them compatible with common p-type dopants like 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ). After optimizing the doping level, we obtained a thermoelectric figure of merit up to zT = 0.02 for NIP3T-BDT-poly, comparable with benchmark F4TCNQ-vapor doped polythiophenes.
PB Royal Society of Chemistry
SN 2050-7526
SN 2050-7534
YR 2025
FD 2025-02-19
LK https://hdl.handle.net/20.500.14352/118274
UL https://hdl.handle.net/20.500.14352/118274
LA eng
NO Alonso-Navarro, Matías J., et al. «Low-Bandgap Oligothiophene-Naphthalimide Oligomeric Semiconductors for Thermoelectric Applications». Journal of Materials Chemistry C, 2025, p. 10.1039.D4TC05383D. DOI.org (Crossref), https://doi.org/10.1039/D4TC05383D.
NO Ministerio de Ciencia e Innovación
NO Universidad Complutense de Madrid
DS Docta Complutense
RD 19 abr 2025