Abstract
An experimental study of the absorption edge of single crystals of Mo${\mathrm{S}}_{2}$ down to a thickness of a few unit-cell layers has been carried out. With crystals less than 30 \AA{} thick, the strong absorption peak in the red part of the spectrum disappears. Structure on the short-wavelength side of this peak disappears at a thickness of about 125 \AA{}. These changes may be due to exciton size effects. The strength of a peak in the orange part of the spectrum is independent of thickness, down to the thickness of a few unit-cell layers. A new peak is observed with crystals less than 50 \AA{} thick.
Keywords
Absorption (acoustics)Materials scienceWavelengthOrange (colour)Absorption edgeAbsorption spectroscopyCrystallographyExcitonAnalytical Chemistry (journal)OpticsMolecular physicsPhysicsChemistryOptoelectronicsBand gapCondensed matter physics
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Publication Info
- Year
- 1965
- Type
- article
- Volume
- 140
- Issue
- 2A
- Pages
- A536-A539
- Citations
- 73
- Access
- Closed
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Cite This
R. F. Frindt
(1965).
Optical Absorption of a Few Unit-Cell Layers of Mo<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">S</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>.
Physical Review
, 140
(2A)
, A536-A539.
https://doi.org/10.1103/physrev.140.a536
Identifiers
- DOI
- 10.1103/physrev.140.a536