biostudies-literatureSaha DNatural Sciences and Engineering Research Council of CanadaCanada First Research Excellence Fund3666-3675https://www.ebi.ac.uk/biostudies/studies/S-EPMC8969871biostudies-literatureUnknown38(12)Molybdenum disulfide (MoS₂) is a promising material for applications in sensors, energy storage, energy conversion devices, solar cells, and fuel cells. Because many of those applications require conductive materials, we recently developed a method for preparing a conductive form of MoS₂ (c-MoS₂) using dilute aqueous hydrogen peroxide in a simple and safe way. Here, we investigate modulating the chemical and mechanical surface properties of c-MoS₂ thin films using diazonium chemistry. In addition to a direct passivation strategy of c-MoS₂ with diazonium salts for electron-withdrawing groups, we also propose a novel <i>in situ</i> synthetic pathway for modification with electron-donating groups. The obtained results are examined by RamaLangmuir : the ACS journal of surfaces and colloidsTuning the Chemical and Mechanical Properties of Conductive MoS₂ Thin Films by Surface Modification with Aryl Diazonium Salts.PMC8969871RGPIN06145-18Dalmieda JSelvaganapathy PRSaha DKruse PDarestani-Farahani MAngizi SfalseTuning the Chemical and Mechanical Properties of Conductive MoS₂ Thin Films by Surface Modification with Aryl Diazonium Salts.Molybdenum disulfide (MoS₂) is a promising material for applications in sensors, energy storage, energy conversion devices, solar cells, and fuel cells. Because many of those applications require conductive materials, we recently developed a method for preparing a conductive form of MoS₂ (c-MoS₂) using dilute aqueous hydrogen peroxide in a simple and safe way. Here, we investigate modulating the chemical and mechanical surface properties of c-MoS₂ thin films using diazonium chemistry. In addition to a direct passivation strategy of c-MoS₂ with diazonium salts for electron-withdrawing groups, we also propose a novel <i>in situ</i> synthetic pathway for modification with electron-donating groups. The obtained results are examined by Rama2022-01-01T00:00:00Z2022 Mar2025-04-04T12:29:26.509Z2025-04-04T12:29:26.509ZS-EPMC89698713529817610.1021/acs.langmuir.1c03061