3.4k citations · 10.8k across the 18 of their papers we have counts for
10 papers · 1 filter
Observation of exciton-exciton interaction mediated valley depolarization in monolayer MoSe
Fahad Mahmood, Zhanybek Alpichshev, Yi-Hsien Lee +2
The valley pseudospin in monolayer transition metal dichalcogenides (TMDs) has been proposed as a new way to manipulate information in various optoelectronic devices. This relies o…
Large, valley-exclusive Bloch-Siegert shift in monolayer WS2
Edbert J. Sie, Chun Hung Lui, Yi-Hsien Lee +3
Coherent light-matter interaction can be used to manipulate the energy levels of atoms, molecules and solids. When light with frequency ω is detuned away from a resonance ωo, repul…
Observation of intervalley biexcitonic optical Stark effect in monolayer WS2
Edbert J. Sie, Chun Hung Lui, Yi-Hsien Lee +2
Coherent optical dressing of quantum materials offers technological advantages to control their electronic properties, such as the electronic valley degree of freedom in monolayer…
Observation of interlayer phonon modes in van der Waals heterostructures
Chun Hung Lui, Zhipeng Ye, Chao Ji +9
We have investigated the vibrational properties of van der Waals heterostructures of monolayer transition metal dichalcogenides (TMDs), specifically MoS2/WSe2 and MoSe2/MoS2 hetero…
Broad Band Optical Properties of Large Area Monolayer CVD Molybdenum Disulfide
Wei Li, A. Glen Birdwell, Matin Amani +9
Recently emerging large-area single-layer MoS2 grown by chemical vapor deposition has triggered great interest due to its exciting potential for applications in advanced electronic…
Valley-selective optical Stark effect in monolayer WS2
Edbert J. Sie, James W. McIver, Yi-Hsien Lee +3
Breaking space-time symmetries in two-dimensional crystals (2D) can dramatically influence their macroscopic electronic properties. Monolayer transition-metal dichalcogenides (TMDs…
Electronic transport and device prospects of monolayer molybdenum disulphide grown by chemical vapour deposition
Wenjuan Zhu, Tony Low, Yi-Hsien Lee +5
Layered transition metal dichalcogenides display a wide range of attractive physical and chemical properties and are potentially important for various device applications. Here we…
Intervalley biexcitons and many-body effects in monolayer MoS2
Edbert J. Sie, Alex J. Frenzel, Yi-Hsien Lee +2
Interactions between two excitons can result in the formation of bound quasiparticles, known as biexcitons. Their properties are determined by the constituent excitons, with orbita…
Nitrogen-Doped Graphene Sheets Grown by Chemical Vapor Deposition: Synthesis and Influence of Nitrogen Impurities on Carrier Transport
Yu-Fen Lu, Shun-Tsung Lo, Jheng-Cyuan Lin +7
A significant advance toward achieving practical applications of graphene as a two-dimensional material in nanoelectronics would be provided by successful synthesis of both n-type…
Integrated Circuits Based on Bilayer MoS2 Transistors
Han Wang, Lili Yu, Yi-Hsien Lee +7
Two-dimensional (2D) materials, such as molybdenum disulfide (MoS2), have been shown to exhibit excellent electrical and optical properties. The semiconducting nature of MoS2 allow…