Dresden 2014 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HL: Fachverband Halbleiterphysik

HL 83: Poster: Graphene (with MA/O)

HL 83.7: Poster

Mittwoch, 2. April 2014, 17:00–20:00, P1

Characterization and transfer of 2D dichalcogenides produced by anodic bonding — •Philipp Nagler, Gerd Plechinger, Christian Schüller, and Tobias Korn — Institut für Experimentelle und Angewandte Physik, Universität Regensburg, 93040 Regensburg, Germany

Atomically thin MoS2 and WS2 structures have attracted growing attention as promising 2D semiconductors. As monolayers, both materials exhibit a direct bandgap and therefore are suitable candidates for future opto-electronical devices. We produced singlelayer MoS2 and WS2 by means of anodic bonding. In this process, the material is bonded by electrostatic forces on a borosilicate glass substrate. Compared to mechanical exfoliation, this technique usually yields larger flakes. Anodic bonded MoS2 flakes were characterized by Raman and photoluminescence (PL) spectroscopy. Performing low-temperature PL measurements, we observed similar behaviour as in SiO2-supported MoS2. Furthermore, PL measurements for anodic bonded WS2 are presented. By applying the wedging transfer technique, we transferred anodic bonded monolayer WS2 from the glass to a SiO2 substrate. Additionally, using this method, heterostructures consisting of various 2D materials could be produced and characterized.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2014 > Dresden