Abstract:
:Few-layer black phosphorus (BP) is the most promising material among the two-dimensional materials due to its layered structure and the excellent semiconductor properties. Currently, thin BP atomic layers are obtained mostly by mechanical exfoliation of bulk BP, which limits applications in thin-film based electronics due to a scaling process. Here we report highly crystalline few-layer black phosphorus thin films produced by liquid exfoliation. We demonstrate that the liquid-exfoliated BP forms a triangular crystalline structure on SiO2/Si (001) and amorphous carbon. The highly crystalline BP layers are faceted with a preferred orientation of the (010) plane on the sharp edge, which is an energetically most favorable facet according to the density functional theory calculations. Our results can be useful in understanding the triangular BP structure for large-area applications in electronic devices using two-dimensional materials. The sensitivity and selectivity of liquid-exfoliated BP to gas vapor demonstrate great potential for practical applications as sensors.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Seo S,Lee HU,Lee SC,Kim Y,Kim H,Bang J,Won J,Kim Y,Park B,Lee Jdoi
10.1038/srep23736subject
Has Abstractpub_date
2016-03-30 00:00:00pages
23736issn
2045-2322pii
srep23736journal_volume
6pub_type
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