White luminescence achieved by a multiple thermochromic emission in a hybrid organic-inorganic compound based on 3-picolylamine and copper(i) iodide

Three copper(i) complexes have been obtained by the reaction of CuI with 3-picolylamine in acetonitrile solution and characterized by X-ray powder diffraction, both from synchrotron and laboratory radiation. Photophysical investigations in the solid state revealed highly efficient thermally-activate...

Full description

Saved in:
Bibliographic Details
Published inDalton transactions : an international journal of inorganic chemistry Vol. 45; no. 44; pp. 17939 - 17947
Main Authors Farinella, F, Maini, L, Mazzeo, P P, Fattori, V, Monti, F, Braga, D
Format Journal Article
LanguageEnglish
Published England 01.01.2016
Subjects
Acetonitrile
Diffraction
Displays
Emission
Iodides
Luminescence
Synchrotrons
X-rays
Online AccessGet full text

Cover

More Information
Summary:Three copper(i) complexes have been obtained by the reaction of CuI with 3-picolylamine in acetonitrile solution and characterized by X-ray powder diffraction, both from synchrotron and laboratory radiation. Photophysical investigations in the solid state revealed highly efficient thermally-activated delayed fluorescence (TADF) with photoluminescence quantum yields (PLQYs) up to 18%. Notably, the complex [Cu I (3pica)] displays a strong luminescence thermochromism due to the presence of both (X + M)LCT excited states and a lower-lying cluster-centered ( CC) one, leading to multiple emission at room temperature; as a result, a white luminescence is achieved with a PLQY of 4.5%.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1477-9226
1477-9234
DOI:10.1039/c6dt03049a