Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2014-03-21

Journal: NANOSCALE

Included Journals: Scopus、PubMed、EI、SCIE

Volume: 6

Issue: 6

Page Number: 3403-3409

ISSN: 2040-3364

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.