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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.


Gerardo Siller-Algara

Nikolai Severin

Samantha Y. Chong

Torbjörn Björkman

Robert G. Palgrave

Assistant Professor in Chemical Engineering

Markus Antonietti

Yaroslav Z. Khimyak

Arkady V. Krasheninnikov

Jürgen P. Rabe

Ute Kaiser

Andrew I. Cooper

Arne Thomas

Michael J. Bojdys


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.


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

Journal Article Type Article
Acceptance Date May 1, 2014
Online Publication Date May 18, 2014
Publication Date Jul 14, 2014
Deposit Date Sep 8, 2017
Journal Angewandte Chemie International Edition
Print ISSN 1433-7851
Electronic ISSN 1521-3773
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 53
Issue 29
Public URL
Publisher URL
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