何成
- 教授
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- E-Mail:
- Date of Employment:2009-11-25
- Professional Title:教授
- Status:Employed
- Alma Mater:吉林大学
- College:School Of Materials Science And Engineering
- Discipline:Materials Science and Engineering
- Papers
A tunable and sizable bandgap of a g-C3N4/graphene/g-C3N4 sandwich heterostructure:a van der Waals density functional study
Release Time:2025-04-30 Hits:
- Date:2025-04-30
- Title of Paper:A tunable and sizable bandgap of a g-C3N4/graphene/g-C3N4 sandwich heterostructure:a van der Waals density functional study
- Journal:J. Mater. Chem. C
- Summary:The structural and electronic properties of a g-C3N4/graphene/g-C3N4 (g-C3N4/SLG/g-C3N4) sandwich
heterostructure have been systematically investigated using density functional theory with van der Waals
corrections. The results indicate that the band gap of the g-C3N4/SLG/g-C3N4 sandwich heterostructure
can be opened to 106 meV without strain. Applying strain is a promising way to tune the electronic
properties of a sandwich heterostructure. After applying uniaxial strain, the heterostructure can withstand
larger tensile strain than compression strain without damaging the structure and the band gap is more
easily increased by the X-direction strain. When the 5% X-direction strain is applied, the band gap could be
opened to 525 meV and meanwhile maintain a high carrier mobility. These electronic properties may
provide a potential application in nanodevices. - Co-author:M. M. Dong, C. He * and W. X. Zhang
- Volume:5
- Page Number:5, 3830
- Translation or Not:No
- Date of Publication:2017-04-14