A novel approach to synthesize ultrasmall Cu doped Zn-In-Se nanocrystal emitters in a colloidal system

Jun Ke, Xinyong Li, Qidong Zhao, Yong Shi, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

A facile phosphine-free approach is presented to prepare Cu doped ternary Zn-In-Se nanocrystals with high performance photoluminescence. By doping during nucleation stage, Cu dopant serving as a dominative emission centre was introduced into a weak fluorescence ternary system to modify the emission path. As a result of varying the ratios of zinc to indium, emission of the products is tunable ranging from 620 to 545 nm and a photoluminescence quantum yield of up to 20%. Meanwhile, a large Stokes shift of 467 meV is achieved.
Original languageEnglish
Pages (from-to)3403-3409
Number of pages7
JournalNanoscale
Volume6
Issue number6
DOIs
Publication statusPublished - 21 Mar 2014
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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