RT Journal Article
T1 The effect of hydrogen bond interactions on the electronic nature of DPP-based organic semiconductors: implications on charge transport
A1 González Núñez, Raúl
A1 Martínez, Gabriel
A1 Ávila-Rovelo, Nelson Ricardo
A1 Hong, Kyeog-Im
A1 Ruiz-Carretero, Amparo
A1 Ponce-Ortiz, Rocío
K1 Química Física
K1 Enlaces de hidrógeno
K1 Semiconductores
AB In this work, we show that hydrogen bond interactions, in addition to directing supramolecular order,can have an intriguing effect on the molecular and electronic properties of DPP derivatives, facilitatingredox processes in the solid state. As a result, charge carrier formation can be enhanced in devices,contributing to the improvement of electrical performances of two exceptionally small molecularsemiconductors based on a thiophene-capped diketopyrrolopyrrole (DPP) as the electroactive componentand amide groups as hydrogen-bonding units. Two different topologies of the amide groupswere explored, C-centered and N-centered (HDPPBA-C and HDPPBA-N, respectively), and the resultswere compared to the HDPPH molecule with no amide groups. Spectroelectrochemical experiments, inconjunction with vibrational spectroscopies and DFT calculations, demonstrate that hydrogen bondformation promotes modifications on the effective conjugation length of the studied semiconductors,which may facilitate the generation of free charge carriers in organic field effect transistors (OFETs).These results open a new strategy towards the simple design of organic semiconductors and controlover their morphological and electrical properties by simple hydrogen bond formation.
PB Royal Society of Chemistry
YR 2024
FD 2024-12
LK https://hdl.handle.net/10630/35384
UL https://hdl.handle.net/10630/35384
LA eng
NO Funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 12 abr 2026