Atomically thin semiconducting transition metal dichalcogenides (TMDCs) have unique mechanical and optical properties. They are extremely flexible and exhibit a strong optical absorption at their excitonic resonances. Excitons in TMDC monolayers are strongly influenced by mechanical strain. Their energy shifts and even their line widths change. In bilayers, intralayer excitons with electrons and holes residing in the same layer also shift their energy with the applied strain. Recently, interlayer excitons with electrons and holes in different layers have been observed in bilayer MoS2 at room temperature. Here, we report on the behavior of interlayer excitons in bilayer MoS2 under uniaxial tensile strain of up to 1.6%. By recording the differential transmission spectra for different strain values, we derive a gauge factor of -47 meV per % for the energy shift of the interlayer exciton, which is similar to -49 meV per % for the intralayer A and B excitons. Our finding confirms the origin of the interlayer exciton at the K point in the Brillouin zone, with the electron located in one layer and the hole delocalized over two layers. Furthermore, our work paves the way for future straintronic devices based on interlayer excitons.
机构:
State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter,School of Physics, Peking UniversityState Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter,School of Physics, Peking University
周旭
论文数: 引用数:
h-index:
机构:
马超杰
王金焕
论文数: 0引用数: 0
h-index: 0
机构:
State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter,School of Physics, Peking University
School of Chemistry and Chemical Engineering, Beijing Institute of TechnologyState Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter,School of Physics, Peking University
王金焕
论文数: 引用数:
h-index:
机构:
张智宏
赵芸
论文数: 0引用数: 0
h-index: 0
机构:
School of Chemistry and Chemical Engineering, Beijing Institute of TechnologyState Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter,School of Physics, Peking University
机构:
Columbia Univ, Dept Elect Engn, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Yeh, Po-Chun
Jin, Wencan
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Jin, Wencan
Zaki, Nader
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Zaki, Nader
Kunstmann, Jens
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Chem, New York, NY 10027 USA
Tech Univ Dresden, Theoret Chem, D-01062 Dresden, GermanyColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Kunstmann, Jens
Chenet, Daniel
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Mech Engn, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Chenet, Daniel
Arefe, Ghidewon
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Mech Engn, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Arefe, Ghidewon
Sadowski, Jerzy T.
论文数: 0引用数: 0
h-index: 0
机构:
Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Sadowski, Jerzy T.
Dadap, Jerry I.
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Elect Engn, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Dadap, Jerry I.
Sutter, Peter
论文数: 0引用数: 0
h-index: 0
机构:
Univ Nebraska, Dept Elect & Comp Engn, Lincoln, NE 68588 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA
Sutter, Peter
论文数: 引用数:
h-index:
机构:
Hone, James
Osgood, Richard M., Jr.
论文数: 0引用数: 0
h-index: 0
机构:
Columbia Univ, Dept Elect Engn, New York, NY 10027 USA
Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USAColumbia Univ, Dept Elect Engn, New York, NY 10027 USA