292 citations · 1.3k across the 12 of their papers we have counts for
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cond-mat.mes-hall2014★ 292 cited
Trion induced negative photoconductivity in monolayer MoS2
C. H. Lui, A. J. Frenzel, D. V. Pilon +5
Optical excitation typically enhances electrical conduction and low-frequency radiation absorption in semiconductors. We have, however, observed a pronounced transient decrease of…
cond-mat.mes-hall2014★ 160 cited
Semiconducting-to-metallic photoconductivity crossover and temperature-dependent Drude weight in graphene
A. J. Frenzel, C. H. Lui, Y. C. Shin +2
We investigated the transient photoconductivity of graphene at various gate-tuned carrier densities by optical-pump terahertz-probe spectroscopy. We demonstrated that graphene exhi…