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Sandwich-Like Encapsulation of a Highly Luminescent Copper(I) Complex

Title data

Matejdes, Marián ; Stöter, Matthias ; Czerwieniec, Rafał ; Leitl, Markus ; Rosenfeldt, Sabin ; Schumacher, Thorsten ; Albert, Jonas ; Lippitz, Markus ; Yersin, Hartmut ; Breu, Josef:
Sandwich-Like Encapsulation of a Highly Luminescent Copper(I) Complex.
In: Advanced Optical Materials. Vol. 9 (2021) Issue 19 . - No. 2100516.
ISSN 2195-1071
DOI: https://doi.org/10.1002/adom.202100516

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
SFB 840 - Von partikulären Nanosystemen zur MesotechnologieNo information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

A small molecular weight cationic copper(I) complex showing high luminescence quantum yield based on a thermally activated delayed fluorescence mechanism is immobilized between two 1 nm thin silicate layers. Partial ion exchange of the emitter into a synthetic layered silicate (fluorohectorite) yields an ordered heterostructure with two types of strictly alternating interlayers: a monolayer of the cationic emitter and a monolayer of hydrated Na+ cations. Osmotic swelling of the latter produces dispersions of double-stacks in which the emitter monolayer is encapsulated between two silicate layers. The electrostatic attraction of the emitter interlayer with the oppositely charged silicate layers exerts electrostatic pressure on the emitter. Compared to crystalline salt, rigid confinement for the encapsulated emitter provides improved thermal stability and increased emission quantum yield at ambient temperature. The suspension of delaminated, micrometer-sized double-stacks of 3.9 nm thickness allows for easy solution processing of low-cost optoelectronic devices, such as light-emitting electrochemical cells and organic light-emitting diodes.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: emitter encapsulation; improved emission quantum yield; improved thermal stability; layered silicate; optoelectronic devices; TADF emitters
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics III - Nanooptics > Chair Experimental Physics III - Nanooptics - Univ.-Prof. Dr. Markus Lippitz
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I > Chair Inorganic Chemistry I - Univ.-Prof. Dr. Josef Breu
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics III - Nanooptics
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I
Research Institutions
Research Institutions > Affiliated Institutes
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 13 Nov 2021 22:00
Last Modified: 15 Nov 2021 07:00
URI: https://eref.uni-bayreuth.de/id/eprint/67825