Highly
Ordered <i>n</i>/<i>p</i>‑Co-assembled
Materials with Remarkable Charge Mobilities
Javier López-Andarias
María José Rodriguez
Carmen Atienza
Juan Luis López
Tsubasa Mikie
Santiago Casado
Shu Seki
José L. Carrascosa
Nazario Martín
10.1021/ja510946c.s001
https://acs.figshare.com/articles/journal_contribution/Highly_Ordered_i_n_i_i_p_i_Co_assembled_Materials_with_Remarkable_Charge_Mobilities/2213917
Controlling
self-organization and morphology of chemical architectures
is an essential challenge in the search for higher energy-conversion
efficiencies in a variety of optoelectronic devices. Here, we report
a highly ordered donor/acceptor functional material, which has been
obtained using the principle of ionic self-assembly. Initially, an
electron donor π-extended tetrathiafulvalene and an electron-acceptor
perylene-bisimide were self-organized separately obtaining <i>n</i>- and <i>p</i>-nanofibers at the same scale.
These complementary <i>n</i>- and <i>p</i>-nanofibers
are endowed with ionic groups with opposite charges on their surfaces.
The synergic interactions establish periodic alignments between both
nanofibers resulting in a material with alternately segregated donor/acceptor
nanodomains. Photoconductivity measurements show values for these <i>n</i>/<i>p</i>-co-assembled materials up to 0.8 cm<sup>2</sup> V<sup>–1</sup> s<sup>–1</sup>, confirming the
effectiveness in the design of these heterojunction structures. This
easy methodology offers great possibilities to achieve highly ordered <i>n</i>/<i>p</i>-materials for potential applications
in different areas such as optoelectonics and photovoltaics.
2015-01-21 00:00:00
heterojunction structures
donor
Photoconductivity measurements show values
material
chemical architectures
optoelectronic devices
synergic interactions