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dc.contributor.authorZhao, Man
dc.contributor.authorDing, Defang
dc.contributor.authorYang, Fangxu
dc.contributor.authorWang, Dawei
dc.contributor.authorLv, Jiawei
dc.contributor.authorHu, Wenping
dc.contributor.authorLu, Chenguang
dc.contributor.authorTang, Zhiyong
dc.date.accessioned2017-10-24T01:54:04Z
dc.date.available2017-10-24T01:54:04Z
dc.date.issued2017
dc.identifier.issn1998-0124
dc.identifier.doi10.1007/s12274-016-1351-z
dc.identifier.urihttp://hdl.handle.net/10072/172613
dc.description.abstractThe inter-nanocrystal (NC) distance, necking degree, ordering level, and NC surface ligands all affect the electronic and optoelectronic properties of NC solids. Herein, we introduce a unique PbS structure of necking percolative superlattices to exclude the morphological factors and study the effect of ligands on the NC properties. X-ray photoelectron spectroscopy data indicate that 1,2-ethanedithiol (EDT), oxalic acid, mercaptopropionic acid, and NH4SCN (SCN) ligands were attached to the surface of NCs by substrate-supported ligand exchange. Field-effect transistors were tested and photodetector measurements were performed to compare these NC solids. An SCN-treated film had the highest mobility and responsivity under high-power intensity irradiation owing to its high carrier density, whereas an EDT-treated film had the lowest mobility, photocurrent, and dark current. These findings introduce new avenues for choosing suitable ligands for NC applications.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherTsinghua University Press
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto9
dc.relation.ispartofjournalNano Research
dc.subject.fieldofresearchNanotechnology not elsewhere classified
dc.subject.fieldofresearchcode100799
dc.titleLigand effects on electronic and optoelectronic properties of two-dimensional PbS necking percolative superlattices
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.description.notepublicThis publication has been entered into Griffith Research Online as an Advanced Online Version.
gro.hasfulltextNo Full Text
gro.griffith.authorTang, Zhiyong


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