Crossover from strong to weak exciton confinement in thickness-controlled epitaxial PbI2 thin films

Spatially confined excitons undergo two distinct quantization effects depending on the confinement length, the enhanced binding energy under strong confinement, and the center-of-mass quantization under weak one. However, the transition between them has not been experimentally identified in two-dime...

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Veröffentlicht in:	Applied physics letters 2023-02, Vol.122 (7)
Hauptverfasser:	Nakamura, Masao, Namba, Ryuichi, Yasunami, Takahiro, Ogawa, Naoki, Tokura, Yoshinori, Kawasaki, Masashi
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectra Applied physics Blue shift Center of mass Confinement Crossovers Epitaxial growth Excitons Measurement Molecular beam epitaxy Optoelectronics Thickness Thin films Two dimensional materials
Online-Zugang:	Volltext
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