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Triazine-based graphitic carbon nitride: a two-dimensional semiconductor

Siller-Algara, Gerardo; Severin, Nikolai; Chong, Samantha Y.; Björkman, Torbjörn; Palgrave, Robert G.; Laybourn, Andrea; Antonietti, Markus; Khimyak, Yaroslav Z.; Krasheninnikov, Arkady V.; Rabe, Jürgen P.; Kaiser, Ute; Cooper, Andrew I.; Thomas, Arne; Bojdys, Michael J.

Authors

Gerardo Siller-Algara

Nikolai Severin

Samantha Y. Chong

Torbjörn Björkman

Robert G. Palgrave

Andrea Laybourn

Markus Antonietti

Yaroslav Z. Khimyak

Arkady V. Krasheninnikov

Jürgen P. Rabe

Ute Kaiser

Andrew I. Cooper

Arne Thomas

Michael J. Bojdys



Abstract

Graphitic carbon nitride has been predicted to be structurally analogous to carbon-only graphite, yet with an inherent bandgap. We have grown, for the first time, macroscopically large crystalline thin films of triazine-based, graphitic carbon nitride (TGCN) using an ionothermal, interfacial reaction starting with the abundant monomer dicyandiamide. The films consist of stacked, two-dimensional (2D) crystals between a few and several hundreds of atomic layers in thickness. Scanning force and transmission electron microscopy show long-range, in-plane order, while optical spectroscopy, X-ray photoelectron spectroscopy, and density functional theory calculations corroborate a direct bandgap between 1.6 and 2.0 eV. Thus TGCN is of interest for electronic devices, such as field-effect transistors and light-emitting diodes.

Journal Article Type Article
Publication Date Jul 14, 2014
Journal Angewandte Chemie International Edition
Print ISSN 1433-7851
Electronic ISSN 1521-3773
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 53
Issue 29
APA6 Citation Siller-Algara, G., Severin, N., Chong, S. Y., Björkman, T., Palgrave, R. G., Laybourn, A., …Bojdys, M. J. (2014). Triazine-based graphitic carbon nitride: a two-dimensional semiconductor. Angewandte Chemie International Edition, 53(29), doi:10.1002/anie.201402191
DOI https://doi.org/10.1002/anie.201402191
Publisher URL http://onlinelibrary.wiley.com/doi/10.1002/anie.201402191/abstract
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
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