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Design of Assembled Systems Based on Conjugated Polyphenylene Derivatives and Carbon Nanohorns
Author(s) -
Iglesias Daniel,
Guerra Javier,
Gómez M. Victoria,
Rodríguez Antonio M.,
Prieto Pilar,
Vázquez Ester,
Herrero M. Antonia
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201601282
Subject(s) - conjugated system , thiophene , raman spectroscopy , molecule , atomic orbital , homo/lumo , carbon fibers , materials science , acceptor , organic solar cell , band gap , nanotechnology , chemistry , polymer , electron , organic chemistry , optoelectronics , physics , quantum mechanics , composite number , optics , composite material , condensed matter physics
Promising materials have been designed and fully characterised by an effective interaction between versatile platforms such as carbon nanohorns (CNHs) and conjugated molecules based on thiophene derivatives. Easy and non‐aggressive methods have been described for the synthesis and purification of the final systems. Oligothiophenephenylvinylene (OTP) systems with different geometries and electron density are coupled to the CNHs. A wide range of characterization techniques have been used to confirm the effective interaction between the donor (OTP) and the acceptor (CNH) systems. These hybrid materials show potential for integration into solar cell devices. Importantly, surface‐enhanced Raman spectroscopy (SERS) effects are observed without the presence of any metal surface in the system. Theoretical calculations have been performed to study the optimised geometries of the noncovalent interaction between the surface and the organic molecule. The calculations allow information on the monoelectronic energies of HOMO–LUMO orbitals and band gap of different donor systems to be extracted.