Electronic transport in graphene decorated with Bi2Te3 nanoparticles
Abstract
We investigate the electronic transport in monolayer graphene Hall bars in which the graphene surface is carefully cleaned and then decorated with a dilute coating of Bi2Te3 nanoparticles. The devices include both monolayer-on-silicon oxide and monolayer-on-boron nitride variants. The Bi2Te3 nanoparticles are high quality with few defects, and mono-disperse with a diameter of approximately 15 nm. Initial measurements were made on graphene with a low coverage of 1 nanoparticle per 104nm2 , and indicate transport not dissimilar from standard for graphene. Upon annealing the sample in Ar to promote removal of the nanoparticle polymer coating, a small leftward shift indicating electron doping was observed. Results in devices with higher nanoparticle densities will be presented.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- 2019
- Bibcode:
- 2019APS..MART70285C