| Autor: |
Giovanna Feraco, Oreste De Luca, Ali Syari’ati, Sardar Hameed, Abdurrahman Ali El Yumin, Jianting Ye, Raffaele G Agostino, Petra Rudolf |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
JPhys Materials, Vol 6, Iss 3, p 034006 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2515-7639 |
| DOI: |
10.1088/2515-7639/acdfff |
| Popis: |
Vacancies in atomically thin molybdenum disulphide play an essential role in controlling its optical and electronic properties, which are crucial for applications in sensorics, catalysis or electronics. For this reason, defect engineering employing thiol-terminated molecules is used to heal and/or functionalise defective nanosheets. In this work, chemical vapour deposition-grown MoS _2 with different defect densities was functionalised with three molecules: 4-aminothiophenol (ATP), biphenyl-4-thiol (BPT) and 4-nitrothiophenol (NTP). The molecules’ efficacy in functionalising MoS _2 was probed by x-ray photoelectron, Raman and photoluminescence (PL) spectroscopy. The results show that exposing a defective single layer of MoS _2 to either ATP, BPT or NTP molecules heals the defects, however the chemical structure of these molecules affects the optical response and only for BPT the PL intensity increases. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
