| Autor: |
Ghasemian MB; School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, Australia. m.ghasemian@unsw.edu.au.; School of Chemical Engineering, University of New South Wales (UNSW), Sydney, NSW, Australia., Wang Y; School of Chemical Engineering, University of New South Wales (UNSW), Sydney, NSW, Australia., Allioux FM; School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, Australia. m.ghasemian@unsw.edu.au.; School of Chemical Engineering, University of New South Wales (UNSW), Sydney, NSW, Australia., Zavabeti A; Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, Australia.; School of Science, RMIT University, Melbourne, VIC, Australia., Kalantar-Zadeh K; School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, Australia. m.ghasemian@unsw.edu.au.; School of Chemical Engineering, University of New South Wales (UNSW), Sydney, NSW, Australia. |
| Abstrakt: |
Liquid metal (LM) droplets are now used in many applications including catalysis, sensing, and flexible electronics. Consequently, the introduction of methods for on-demand alternating electronic properties of LMs is necessary. The active surface of LMs provides a unique environment for spontaneous chemical reactions that enable the formation of thin layers of functional materials for such modulations. Here, we showed the deposition of n-type MoO x and MoO x S y semiconductors on the surface of EGaIn LM droplets under mechanical agitation to successfully modulate their electronic structures. The "liquid solution"-"liquid metal" interaction resulted in the formation of oxide and oxysulfide layers on the surface of LM droplets. The comprehensive study of electronic and optical properties revealed a decrease in the band gap of the droplets after surface decoration with MoO x and MoO x S y , leading to deeper n-type doping of the materials. This method provides a facile procedure for engineering the electronic band structure of LM-based composites when they are necessary for various applications. |
