We investigate electronic transport through gate-defined quantum dots in molybdenum disulfide MoS2 using an integrated charge detector. We observe a crossover from two weakly coupled single dots to a strongly coupled double quantum dot. In the regime of extremely weak dot-lead coupling, where the direct transport current is below the detection limit, we measure the dot occupation via charge detection and access the few-electron regime. Due to the large band gap of MoS2, tunneling rates can be sufficiently suppressed to resolve individual tunneling events. These results establish a platform for single-shot spin- and valley-to-charge conversion and highlight the potential of transition-metal dichalcogenide quantum dots for quantum information applications.
@article{arxiv.2512.15842,
title = {Time-resolved Charge Detection in Transition Metal Dichalcogenide Quantum Dots},
author = {Markus Niese and Michele Masseroni and Clara Scherm and Christoph Adam and Max J. Ruckriegel and Artem O. Denisov and Jonas D. Gerber and Lara Ostertag and Jessica Richter and Kenji Watanabe and Takashi Taniguchi and Thomas Ihn and Klaus Ensslin},
journal= {arXiv preprint arXiv:2512.15842},
year = {2025}
}