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Comptes Rendus. Physique
Ultrafast dynamics with time-resolved ARPES: photoexcited electrons in monochalcogenide semiconductors
Comptes Rendus. Physique, Volume 22 (2021) no. S2, pp. 103-110.

Part of the special issue: Physics of ultra-fast phenomena

Time-resolved ARPES makes it possible to directly visualize the band dispersion of photoexcited solids, as well as to study its time evolution on the femtosecond time scale. In this article, we show how this technique can be used to monitor the ultrafast hot carrier dynamics and the conduction band dispersion in two typical monochalcogenide semiconductors: direct band gap, n-type indium selenide and indirect band gap, p-type germanium selenide. With this approach, one can directly estimate the effective electron masses of these semiconductors. Moreover, the dynamics of hot electrons in the two semiconductors are analyzed and compared. Our findings provide valuable information for the use of monochalcogenide semiconductors in future optoelectronic devices.

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Published online:
DOI: 10.5802/crphys.57
Keywords: Time-resolved ARPES, Monochalcogenide semiconductor, Ultrafast dynamics, Effective mass, Out-of-equilibrium 2D materials
Zhesheng Chen 1, 2, 3; Jonathan Caillaux 3; Jiuxiang Zhang 3; Evangelos Papalazarou 3; Jingwei Dong 1; Jean-Pascal Rueff 2; Amina Taleb-Ibrahimi 2; Luca Perfetti 1; Marino Marsi 3

1 Laboratoire des Solides Irradiés, Ecole Polytechnique, CNRS, CEA, 91128 Palaiseau, France
2 Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP48, 91192 Gif-sur-Yvette, France
3 Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
License: CC-BY 4.0
Copyrights: The authors retain unrestricted copyrights and publishing rights
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     author = {Zhesheng Chen and Jonathan Caillaux and Jiuxiang Zhang and Evangelos Papalazarou and Jingwei Dong and Jean-Pascal Rueff and Amina Taleb-Ibrahimi and Luca Perfetti and Marino Marsi},
     title = {Ultrafast dynamics with time-resolved {ARPES:} photoexcited electrons in monochalcogenide semiconductors},
     journal = {Comptes Rendus. Physique},
     pages = {103--110},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {22},
     number = {S2},
     year = {2021},
     doi = {10.5802/crphys.57},
     language = {en},
}
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%A Jonathan Caillaux
%A Jiuxiang Zhang
%A Evangelos Papalazarou
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%A Amina Taleb-Ibrahimi
%A Luca Perfetti
%A Marino Marsi
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Zhesheng Chen; Jonathan Caillaux; Jiuxiang Zhang; Evangelos Papalazarou; Jingwei Dong; Jean-Pascal Rueff; Amina Taleb-Ibrahimi; Luca Perfetti; Marino Marsi. Ultrafast dynamics with time-resolved ARPES: photoexcited electrons in monochalcogenide semiconductors. Comptes Rendus. Physique, Volume 22 (2021) no. S2, pp. 103-110. doi : 10.5802/crphys.57. https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.57/

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