Mixing of Excitons in Nanostructures Based on a Perylene Dye with CdTe Quantum Dots

Abstract

Semiconductor quantum dots of the A2B6 group and organic semiconductors have been widely studied and applied in optoelectronics. This study aims to combine CdTe quantum dots and perylene-based dye molecules into advanced nanostructure system targeting to improve their functional properties. In such systems, new electronic states, a mixture of Wannier–Mott excitons with charge-transfer excitons, have appeared at the interface of CdTe quantum dots and the perylene dye. The nature of such new states has been analyzed by absorption and photoluminescence spectroscopy with picosecond time resolution. Furthermore, aggregation of perylene dye on the CdTe has been elucidated, and contribution of Förster resonant energy transfer has been observed between aggregated forms of the dye and CdTe quantum dots in the hybrid CdTe-perylene nanostructures. The studied nanostructures have strongly quenched emission of quantum dots enabling potential application of such systems in dissociative sensing.

Publication DOI: https://doi.org/10.3390/ma16020552
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering
College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies
Additional Information: Copyright © 2023 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords: perylene dye,nanoparticles,quantum dots,cadmium telluride,photoluminescence,time-resolved spectroscopy,exciton
Publication ISSN: 1996-1944
Last Modified: 18 Jun 2024 07:43
Date Deposited: 12 Jan 2023 13:44
Full Text Link:
Related URLs: https://www.mdp ... 6-1944/16/2/552 (Publisher URL)
PURE Output Type: Article
Published Date: 2023-01-06
Published Online Date: 2023-01-06
Accepted Date: 2022-12-29
Authors: Piryatinski, Yu. P.
Malynovskyi, Markiian
Sevryukova, Maryna
Verbitsky, Anatoli B.
Kapush, Olga
Rozhin, Alex (ORCID Profile 0000-0003-2271-8227)
Lutsyk, Petro (ORCID Profile 0000-0002-7004-1946)

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