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Research ArticlePHYSICS
Giant gate-tunable bandgap renormalization and excitonic effects in a 2D semiconductor
- View ORCID ProfileZhizhan Qiu1,2,*,
- Maxim Trushin3,*,
- View ORCID ProfileHanyan Fang1,*,
- View ORCID ProfileIvan Verzhbitskiy3,4,
- Shiyuan Gao5,
- Evan Laksono3,4,
- Ming Yang6,
- Pin Lyu1,
- View ORCID ProfileJing Li1,
- Jie Su1,3,
- Mykola Telychko1,3,
- View ORCID ProfileKenji Watanabe7,
- Takashi Taniguchi7,
- View ORCID ProfileJishan Wu1,
- View ORCID ProfileA. H. Castro Neto3,4,
- View ORCID ProfileLi Yang5,
- View ORCID ProfileGoki Eda1,3,4,
- View ORCID ProfileShaffique Adam3,4,8 and
- View ORCID ProfileJiong Lu1,3,†
- 1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
- 2NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, 28 Medical Drive, Singapore 117456, Singapore.
- 3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
- 4Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore.
- 5Department of Physics, Washington University in St. Louis, St. Louis, MO 63130, USA.
- 6Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore.
- 7National Institute of Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan.
- 8Yale-NUS College, 16 College Avenue West, Singapore 138527, Singapore.
- ↵†Corresponding author. Email: chmluj{at}nus.edu.sg
↵* These authors contributed equally to this work.
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Science Advances 19 Jul 2019:
Vol. 5, no. 7, eaaw2347
DOI: 10.1126/sciadv.aaw2347
Vol. 5, no. 7, eaaw2347
DOI: 10.1126/sciadv.aaw2347
Zhizhan Qiu
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
2NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, 28 Medical Drive, Singapore 117456, Singapore.
Maxim Trushin
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
Hanyan Fang
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
Ivan Verzhbitskiy
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
4Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore.
Shiyuan Gao
5Department of Physics, Washington University in St. Louis, St. Louis, MO 63130, USA.
Evan Laksono
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
4Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore.
Ming Yang
6Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore.
Pin Lyu
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
Jing Li
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
Jie Su
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
Mykola Telychko
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
Kenji Watanabe
7National Institute of Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan.
Takashi Taniguchi
7National Institute of Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan.
Jishan Wu
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
A. H. Castro Neto
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
4Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore.
Li Yang
5Department of Physics, Washington University in St. Louis, St. Louis, MO 63130, USA.
Goki Eda
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
4Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore.
Shaffique Adam
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
4Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore.
8Yale-NUS College, 16 College Avenue West, Singapore 138527, Singapore.
Jiong Lu
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
3Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 6 Science Drive 2, Singapore 117546, Singapore.
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