Matejdes, Marian and Stoeter, Matthias and Czerwieniec, Rafal and Leitl, Markus and Rosenfeldt, Sabine and Schumacher, Thorsten and Albert, Jonas and Lippitz, Markus and Yersin, Hartmut and Breu, Josef (2021) Sandwich-Like Encapsulation of a Highly Luminescent Copper(I) Complex. ADVANCED OPTICAL MATERIALS, 9 (19): 2100516. ISSN 2195-1071
Full text not available from this repository. (Request a copy)Abstract
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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EMITTING ELECTROCHEMICAL-CELLS; PHOTOPHYSICAL PROPERTIES; CU(I) COMPLEXES; STATE; HETEROSTRUCTURES; NANOPLATELETS; EXFOLIATION; CATIONS; SINGLET; emitter encapsulation; improved emission quantum yield; improved thermal stability; layered silicate; optoelectronic devices; TADF emitters |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Physical Chemistry I Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Hartmut Yersin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Aug 2022 07:10 |
| Last Modified: | 30 Aug 2022 07:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47087 |
Actions (login required)
 |
View Item |
