Self-assembled diacetylene molecular wire polymerization on an insulating hexagonal boron nitride (0001) surface

0464033 - FZÚ 2017 RIV GB eng J - Článek v odborném periodiku
Makarova, Marina - Okawa, Y. - Verveniotis, E. - Watanabe, K. - Taniguchi, T. - Joachim, Ch. - Aono, M.
Self-assembled diacetylene molecular wire polymerization on an insulating hexagonal boron nitride (0001) surface.
Nanotechnology. Roč. 27, č. 39 (2016), 1-8, č. článku 395303. ISSN 0957-4484. E-ISSN 1361-6528
Institucionální podpora: RVO:68378271
Klíčová slova: molecular self-assembly * insulating substrate * molecular electronics * polydiacetylene
Kód oboru RIV: BJ - Termodynamika
Impakt faktor: 3.440, rok: 2016

The electrical characterization of single-polymer chains on a surface is an important step towards novel molecular device development. The main challenge is the lack of appropriate atomically flat insulating substrates for fabricating single-polymer chains. Here, using atomic force microscopy, we demonstrate that the (0001) surface of an insulating hexagonal boron nitride (h-BN) substrate leads to a flat-lying self-assembled monolayer of diacetylene compounds. The subsequent heating or ultraviolet irradiation can initiate an on-surface polymerization process leading to the formation of long polydiacetylene chains. The frequency of photo-polymerization occurrence on h-BN(0001) is two orders of magnitude higher than that on graphite(0001).
Trvalý link: http://hdl.handle.net/11104/0263362