RT Conference Proceedings
T1 Organic Materials: The Effect of Subtle Modifications on Device Performance
A1 Ponce-Ortiz, Rocío
A1 Mayorga-Burrezo, Paula
A1 Casado-Cordón, Juan
A1 López-Navarrete, Juan Teodomiro
A1 Guo, Xugang
A1 Zhou, Nanjia
A1 Huang, Hui
A1 Facchetti, Antonio
A1 Marks, Tobin J.
K1 Semiconductores orgánicos
AB In the search of new high-mobility polymeric semiconductors with good processability and excellent environmental stability, diverse synthetic strategies have been approached.  One of the most widely used consists in the alternation of donor and acceptor moieties in the conjugated skeleton, which allows fine tuning of the polymer frontier molecular orbitals.  For organic field effect transistors (OFETs) applications, low-lying HOMOs are essential to resist air oxidation and thus increase device stability. However, if the HOMO energy is too low, the resulting barrier to hole injection may compromise the transistor performance. Thus, a delicate balance between these two effects is needed. Furthermore, high performance solution-processable materials require the correct selection and positioning of the specific solubilizing substituents in order to achieve proper HOMO and LUMO energy levels, planar molecular conformations, close intermolecular π-π stacking, and proper thin film crystallinity. Following these two combined strategies, diverse polymeric materials with great performances in both OFETs and solar cells, and having remarkable air stability, have been synthesized and characterized. ,   This contribution will analyze how small modifications in their molecular structures can have a great impact on the device performance.
YR 2014
FD 2014-11-07
LK http://hdl.handle.net/10630/8385
UL http://hdl.handle.net/10630/8385
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026