Photoexcitation of PbS nanosheets leads to highly mobile charge carriers and stable excitons

Solution-processable two-dimensional (2D) semiconductors with chemically tunable thickness and associated tunable band gaps are highly promising materials for ultrathin optoelectronics. Here, the properties of free charge carriers and excitons in 2D PbS nanosheets of different thickness are investig...

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Veröffentlicht in:	Nanoscale 2019-11, Vol.11 (44), p.21569-21576
Hauptverfasser:	Lauth, Jannika, Failla, Michele, Klein, Eugen, Klinke, Christian, Kinge, Sachin, Siebbeles, Laurens D. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Current carriers Energy gap Excitons Frequency analysis Insulators Nanosheets Optoelectronics Organic chemistry Photoexcitation Silicon Spectrum analysis Surface defects Thickness
Online-Zugang:	Volltext
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