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Peer-reviewedCC BY-NCScience Advances

Observation of electrically generated polaron-polaritons in a monolayer MoSe ₂ microcavity

  • Yuanjun Guan1
  • Mengyao Xu1
  • Zhen Cui2,3
  • Xingzhou Chen1
  • Chengye Ding1
  • Xiaoqing Zhou2,3
  • Kenji Watanabe4
  • Takashi Taniguchi5
  • Jesper Levinsen6
  • Meera M. Parish6
  • Pavlos G. Savvidis2,3
  • Zhe-Yu Shi1
2 more authors
  • Zheng Sun1,7,8
  • Jian Wu1,7,9
9 affiliations
  1. 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
  2. 2Department of Physics, School of Science, Westlake University, Hangzhou, Zhejiang 310024, China.
  3. 3Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang 310024, China.
  4. 4Research Center for Electronic and Optical Materials, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan.
  5. 5Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan.
  6. 6School of Physics and Astronomy, Monash University, Victoria 3800, Australia.
  7. 7Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China.
  8. 8Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.
  9. 9Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing 401121, China.
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Abstract

Quasiparticles arising from the interaction between mobile impurities and a quantum many-body environment-known as polarons-play a pivotal role in shaping the optical and electronic properties of low-dimensional systems. Here, we report the direct observation of electrically generated polaron-polaritons within a monolayer molybdenum diselenide microcavity. By embedding the monolayer in a planar optical cavity, we achieve strong coupling between exciton-polarons and cavity photons, creating an electrically driven light-emitting diode based on polaron-polaritons. The device exhibits an external quantum efficiency of ∼0.15%, representing a 10-fold enhancement over prior exciton-polariton devices based on monolayer tungsten disulfide. This demonstration establishes a versatile platform for inversionless laser technology and for polariton-based quantum optoelectronics while offering insights into radiative many-body physics in two-dimensional semiconductors.

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Cite

BibTeXRIS
BibTeX
@article{guan2026observation,
  title = {{Observation of electrically generated polaron-polaritons in a monolayer MoSe ₂ microcavity}},
  author = {Yuanjun Guan and Mengyao Xu and Zhen Cui and Xingzhou Chen and Chengye Ding and Xiaoqing Zhou and Kenji Watanabe and Takashi Taniguchi and Jesper Levinsen and Meera M. Parish and Pavlos G. Savvidis and Zhe-Yu Shi and Zheng Sun and Jian Wu},
  journal = {Science Advances},
  year = {2026},
  month = oct,
  doi = {10.1126/sciadv.aed2180},
  url = {https://www.science.org/doi/10.1126/sciadv.aed2180},
  note = {CC BY-NC},
}
RIS
TY  - JOUR
TI  - Observation of electrically generated polaron-polaritons in a monolayer MoSe ₂ microcavity
AU  - Yuanjun Guan
AU  - Mengyao Xu
AU  - Zhen Cui
AU  - Xingzhou Chen
AU  - Chengye Ding
AU  - Xiaoqing Zhou
AU  - Kenji Watanabe
AU  - Takashi Taniguchi
AU  - Jesper Levinsen
AU  - Meera M. Parish
AU  - Pavlos G. Savvidis
AU  - Zhe-Yu Shi
AU  - Zheng Sun
AU  - Jian Wu
PY  - 2026
DA  - 2026/10/09
JO  - Science Advances
DO  - 10.1126/sciadv.aed2180
UR  - https://www.science.org/doi/10.1126/sciadv.aed2180
AB  - Quasiparticles arising from the interaction between mobile impurities and a quantum many-body environment-known as polarons-play a pivotal role in shaping the optical and electronic properties of low-dimensional systems. Here, we report the direct observation of electrically generated polaron-polaritons within a monolayer molybdenum diselenide microcavity. By embedding the monolayer in a planar optical cavity, we achieve strong coupling between exciton-polarons and cavity photons, creating an electrically driven light-emitting diode based on polaron-polaritons. The device exhibits an external quantum efficiency of ∼0.15%, representing a 10-fold enhancement over prior exciton-polariton devices based on monolayer tungsten disulfide. This demonstration establishes a versatile platform for inversionless laser technology and for polariton-based quantum optoelectronics while offering insights into radiative many-body physics in two-dimensional semiconductors.
SN  - 2375-2548
ER  -