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Highly Ordered n/p-Co-assembled Materials with Remarkable Charge Mobilities

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López Andarias, Javier and Rodríguez, María José and Atienza, Carmen and López, Juan Luis and Mikie, Tsubasa and Casado, Santiago and Seki, Shu and Carrascosa, José L. and Martín, Nazario (2014) Highly Ordered n/p-Co-assembled Materials with Remarkable Charge Mobilities. Journal of the American Chemical Society, 137 (2). pp. 893-897. ISSN 1520-5126(Online)

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ja510946c



Abstract

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 n- and p-nanofibers at the same scale. These complementary n- and p-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 n/p-co-assembled materials up to 0.8 cm2 V–1 s–1, confirming the effectiveness in the design of these heterojunction structures. This easy methodology offers great possibilities to achieve highly ordered n/p-materials for potential applications in different areas such as optoelectonics and photovoltaics.


Item Type:Article
Uncontrolled Keywords:Functional materials; Heterojunctions; Optoelectronic devices; Self assembly
Subjects:Sciences > Chemistry > Chemistry, Organic
ID Code:36014
Deposited On:29 Feb 2016 12:45
Last Modified:02 Mar 2016 15:38

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