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Green light-emitting CdTe nanocrystals: Synthesis and optical characterizations

TitleGreen light-emitting CdTe nanocrystals: Synthesis and optical characterizations
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2015
AuthorsAlgieri, L., Rosato R., Mosca M.E., Protopapa Maria Lucia, Scalone Anna Grazia, Di Benedetto Francesca, Bucci L., and Tapfer Leander
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume12
Pagination147-152
ISSN18626351
KeywordsCadmium telluride, Capping ligands, CdTe nanocrystals, Chelation, Electromagnetic wave absorption, FTIR, Ligands, Light absorption, Light emission, Long chains, Myristic acid, Nanocrystals, Optical characterization, Optical properties, Optical spectra, Photoluminescence, Reaction kinetics, Size dependent, Synthesis (chemical)
Abstract

In this work, we report on the synthesis of CdTe nanocrystals (NCs) by using of two different saturated long-chain capping ligands, oleic (OA) and myristic acids (MA), and investigate their influence on the nanocrystals optical properties. The main goal of our study is to identify the ligand that allows slowing down the growth rate of the NCs after nucleation, in order to obtain small enough nanocrystals emitting in the blue-green part of the optical spectrum. Our results show clearly that oleic acid allows a good control on the CdTe NCs growth, finally leading to a fine-tuning of the NCs size-dependent emission from the green to the yellow part of the spectrum. Instead, a faster reaction kinetics, which arises in a lower possibility to produce small NCs emitting in the green part of the spectrum, was noticed using myristic acid. © 2015 WILEY-VCH Verlag GmbH & Co.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84922065456&doi=10.1002%2fpssc.201400203&partnerID=40&md5=bfe5c632e288818579a38edc3522ea8b
DOI10.1002/pssc.201400203
Citation KeyAlgieri2015147