1.1k citations · 2.7k across the 19 of their papers we have counts for
19 papers
Electric-field-tunable intervalley excitons and phonon replicas in bilayer WSe
Mashael M. Altaiary, Erfu Liu, Ching-Tarng Liang +7
We report the direct observation of intervalley exciton between the Q conduction valley and valence valley in bilayer WSe by photoluminescence. The Q exciton lies at ~18…
Stacking enabled strong coupling of atomic motion to interlayer excitons in van der Waals heterojunction photodiodes
Fatemeh Barati, Trevor B. Arp, Shanshan Su +6
We reveal stacking-induced strong coupling between atomic motion and interlayer excitons through photocurrent measurements of WSe/MoSe heterojunction photodiodes. Strong co…
Excitonic and valleytronic signatures of correlated states at fractional fillings of a moiré superlattice
Erfu Liu, Takashi Taniguchi, Kenji Watanabe +3
Moiré superlattices are excellent platforms to realize strongly correlated quantum phenomena, such as Mott insulation and superconductivity. In particular, recent research has reve…
Multipath optical recombination of intervalley dark excitons and trions in monolayer WSe
Erfu Liu, Jeremiah van Baren, Ching-Tarng Liang +5
Excitons and trions (or exciton-polarons) in transition metal dichalcogenides (TMDs) are known to decay predominantly through intravalley transitions. Electron-hole recombination a…
Quieting a noisy antenna reproduces photosynthetic light harvesting spectra
Trevor B. Arp, Jed Kistner-Morris, Vivek Aji +3
Photosynthesis is remarkable, achieving near unity light harvesting quantum efficiency in spite of dynamic light conditions and noisy physiological environment. Under these adverse…
Giant intrinsic photoresponse in pristine graphene
Qiong Ma, Chun Hung Lui, Justin C. W. Song +14
When the Fermi level matches the Dirac point in graphene, the reduced charge screening can dramatically enhance electron-electron (e-e) scattering to produce a strongly interacting…