1. Department of Chemistry, Faculty of Natural & Mathematical Sciences, King’s College London, Britannia House, 7 Trinity Street, London SE1 1DB, United Kingdom
2. Institut de Química Teòrica i Computacional (IQTC), Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
3. School of Molecular and Life Sciences, Curtin University, Bentley WA 6102, Australia
4. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
5. Center for Biosensors and Bioelectronics, Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
6. Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
7. Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore 117546