Self-assembling diacetylene molecules on atomically flat insulators

Elisseos Verveniotis; Yuji Okawa; Marina V. Makarova; Yasuo Koide; Jiangwei Liu; Břetislav Šmíd; Kenji Watanabe; Takashi Taniguchi; Katsuyoshi Komatsu; Takeo Minari; Xuying Liu; Christian Joachim; Masakazu Aono

doi:10.1039/C6CP06749B

Self-assembling diacetylene molecules on atomically flat insulators†

Elisseos Verveniotis,*^a Yuji Okawa,*^a Marina V. Makarova,^ab Yasuo Koide,^c Jiangwei Liu,^c Břetislav Šmíd,^cd Kenji Watanabe,^c Takashi Taniguchi,^c Katsuyoshi Komatsu,^a Takeo Minari,^a Xuying Liu,^a Christian Joachim^ae and Masakazu Aono^a

Author affiliations

* Corresponding authors

^a International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
E-mail: Verveniotis.Elisseos@nims.go.jp, Okawa.Yuji@nims.go.jp

^b Institute of Physics, Czech Academy of Sciences, Na Slovance, 2, Prague 8, Czech Republic

^c National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

^d International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan

^e Centre d’Elaboration de Matériaux et d’Études Structurales (CEMES), Centre National de la Recherche Scientifique (CNRS), 29 rue J. Marvig, 31055 Toulouse Cedex, France

Abstract

Single crystal sapphire and diamond surfaces are used as planar, atomically flat insulating surfaces, for the deposition of the diacetylene compound 10,12-nonacosadiynoic acid. The surface assembly is compared with results on hexagonal boron nitride (h-BN), highly oriented pyrolytic graphite (HOPG) and MoS₂ surfaces. A perfectly flat-lying monolayer of 10,12-nonacosadiynoic acid self-assembles on h-BN like on HOPG and MoS₂. On sapphire and oxidized diamond surfaces, we observed assemblies of standing-up molecular layers. Surface assembly is driven by surface electrostatic dipoles. Surface polarity is partially controlled using a hydrogenated diamond surface or totally screened by the deposition of a graphene layer on the sapphire surface. This results in a perfectly flat and organized SAM on graphene, which is ready for on-surface polymerization of long and isolated molecular wires under ambient conditions.

Physical Chemistry Chemical Physics

Self-assembling diacetylene molecules on atomically flat insulators†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Self-assembling diacetylene molecules on atomically flat insulators

Social activity

Search articles by author

Spotlight

Advertisements