Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/68372
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dc.contributorDepartment of Applied Physicsen_US
dc.creatorBellus, MZen_US
dc.creatorYang, ZBen_US
dc.creatorHao, JHen_US
dc.creatorLau, SPen_US
dc.creatorZhao, Hen_US
dc.date.accessioned2017-08-10T09:11:40Z-
dc.date.available2017-08-10T09:11:40Z-
dc.identifier.issn2053-1583en_US
dc.identifier.urihttp://hdl.handle.net/10397/68372-
dc.language.isoenen_US
dc.publisherInstitute of Physics Publishingen_US
dc.rights© 2017 IOP Publishing Ltden_US
dc.rightsThis manuscript version is made available under the CC-BY-NC-ND 4.0 license (https://creativecommons.org/licenses/by-nc-nd/4.0/)en_US
dc.rightsThe following publication Bellus, M. Z., Yang, Z., Hao, J., Lau, S. P., & Zhao, H. (2017). Amorphous two-dimensional black phosphorus with exceptional photocarrier transport properties. 2D Materials, 4(2), 025063 is available at https://doi.org/10.1088/2053-1583/aa676f.en_US
dc.subjectBlack phosphorusen_US
dc.subjectAmorphousen_US
dc.subjectPhotocarrieren_US
dc.subjectDiffusionen_US
dc.subjectMobilityen_US
dc.titleAmorphous two-dimensional black phosphorus with exceptional photocarrier transport propertiesen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume4en_US
dc.identifier.issue2en_US
dc.identifier.doi10.1088/2053-1583/aa676fen_US
dcterms.abstractRecently, two-dimensional materials have been extensively studied. Due to the reduced dielectric screening and confinement of electrons in two dimensions, these materials show dramatically different electronic and optical properties from their bulk counterparts. So far, studies on two-dimensional materials have mainly focused on crystalline materials. Here we report studies of atomically thin amorphous black phosphorus, as the first two-dimensional amorphous material. Spatially and temporally resolved pump-probe measurements show that large-area and uniform atomic layers of amorphous black phosphorus, synthesized at low temperature, possess a long exciton lifetime of about 400 ps, a room-temperature exciton diffusion coefficient of 5 cm(2) s(-1), which is at least two orders of magnitude larger than amorphous silicon, and an exciton mobility of about 200 cm(2) V-1 s(-1). We also deduce from these values an exciton mean free time of 50 fs, a mean free path of 5 nm, and a diffusion length of 450 nm. These results suggest that amorphous black phosphorus can be potentially used in low-cost optoelectronic devices.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitation2d materials, June 2017, v. 4, no. 2, 025063en_US
dcterms.isPartOf2d materialsen_US
dcterms.issued2017-06-
dc.identifier.isiWOS:000398379000002-
dc.identifier.isiWOS:000398424400010-
dc.identifier.ros2016005711-
dc.source.typeArticle-
dc.identifier.artn025063en_US
dc.identifier.rosgroupid2016005460-
dc.description.ros2016-2017 > Academic research: refereed > Publication in refereed journalen_US
dc.description.validate201804_a bcmaen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberAP-0643-
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextThe National Science Foundation of USA; The Hong Kong Polytechnic Universityen_US
dc.description.pubStatusPublisheden_US
dc.identifier.OPUS6755405-
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