Triazine-Based Graphitic Carbon Nitride: a Two-Dimensional Semiconductor

被引：587

作者：

Algara-Siller, Gerardo ^{[1
]}

Severin, Nikolai ^{[2
,3
]}

Chong, Samantha Y. ^{[4
,5
]}

Bjorkman, Torbjorn ^{[6
]}

Palgrave, Robert G. ^{[7
]}

Laybourn, Andrea ^{[4
,5
]}

Antonietti, Markus ^{[8
]}

Khimyak, Yaroslav Z. ^{[9
]}

Krasheninnikov, Arkady V. ^{[10
]}

Rabe, Juergen P. ^{[2
,3
]}

Kaiser, Ute ^{[1
]}

Cooper, Andrew I. ^{[4
,5
]}

Thomas, Arne ^{[11
]}

Bojdys, Michael J. ^{[4
,5
]}

机构：

[1] Univ Ulm, D-89081 Ulm, Germany

[2] Humboldt Univ, Dept Phys, D-12489 Berlin, Germany

[3] Humboldt Univ, IRIS, D-12489 Berlin, Germany

[4] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England

[5] Univ Liverpool, Ctr Mat Discovery, Liverpool L69 7ZD, Merseyside, England

[6] Aalto Univ, Dept Appl Phys, COMP, Aalto 00076, Finland

[7] UCL, Dept Chem, London WC1H 0AJ, England

[8] Max Planck Inst Colloids & Interfaces, Dept Colloids, D-14476 Potsdam, Germany

[9] Univ E Anglia, Sch Pharm, Norwich NR4 7TJ, Norfolk, England

[10] Aalto Univ, Dept Appl Phys, Aalto 00076, Finland

[11] Tech Univ Berlin, Inst Chem, D-10623 Berlin, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 29期

基金：

英国工程与自然科学研究理事会; 欧洲研究理事会; 芬兰科学院;

关键词：

carbon nitride; graphene; semiconductor; thin films; ELECTRONIC-STRUCTURE; GRAPHENE; CRYSTALLINE;

D O I：

10.1002/anie.201402191

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：7450 / 7455

页数：6

共 35 条

[1] COMBINED INVESTIGATIONS OF VALENCE BAND-STRUCTURE OF GRAPHITE BY K X-RAY-EMISSION SPECTROSCOPY AND X-RAY PHOTOEMISSION SPECTROSCOPY [J].