TY - JOUR
T1 - Different healing characteristics of thiol-bearing molecules on CVD-grown MoS2
AU - Feraco, Giovanna
AU - Luca, Oreste De
AU - Syari’ati, Ali
AU - Hameed, Sardar
AU - El Yumin, Abdurrahman Ali
AU - Ye, Jianting
AU - Agostino, Raffaele G.
AU - Rudolf, Petra
N1 - Funding Information:
This work received support from the Advanced Materials research program of the Zernike National Research Centre under the Bonus Incentive Scheme of the Dutch Ministry for Education, Culture and Science.
Publisher Copyright:
© 2023 The Author(s). Published by IOP Publishing Ltd.
PY - 2023/7/1
Y1 - 2023/7/1
N2 - 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 MoS2 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 MoS2 was probed by x-ray photoelectron, Raman and photoluminescence (PL) spectroscopy. The results show that exposing a defective single layer of MoS2 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.
AB - 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 MoS2 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 MoS2 was probed by x-ray photoelectron, Raman and photoluminescence (PL) spectroscopy. The results show that exposing a defective single layer of MoS2 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.
KW - functionalisation
KW - molybdenum disulphide
KW - photoluminescence
KW - x-ray photoelectron spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85165992368&partnerID=8YFLogxK
U2 - 10.1088/2515-7639/acdfff
DO - 10.1088/2515-7639/acdfff
M3 - Article
AN - SCOPUS:85165992368
SN - 2515-7639
VL - 6
JO - JPhys Materials
JF - JPhys Materials
IS - 3
M1 - 034006
ER -