Harnessing Vibrationally Assisted Delayed Fluorescence for Enhanced Energy Transfer in Mn-Doped CsPbBr<sub>3</sub> Nanocrystals
This study explores vibrationally assisted delayed fluorescence (VADF) in Mn-doped CsPbBr3 nanocrystals using Förster resonance energy transfer (FRET). Mn doping enhances the FRET efficiency significantly due to an increase in host fluorescence efficiency, indicating an increase in the radiative pathways due to VADF. We observed that Mn facilitates efficient back-transfer of charge carriers, improving energy transfer to acceptor molecules such as Rhodamine 6G (R6G). The simplicity of tuning optical properties through Mn doping presents a promising method to enhance the energy efficiency in donor–acceptor systems for optoelectronic applications. However, further research on halide concentrations, acceptor molecules, and electron transfer mechanisms is necessary to optimize these systems for effective light energy harvesting.
Authors
- Ranjani Viswanatha (ORCID: https://orcid.org/0000-0002-3819-4029)
- Subham Das (ORCID: https://orcid.org/0000-0002-3351-8805)
- Sanjukta Aich
- M. Aswathy
Institutions
- Jawaharlal Nehru Centre for Advanced Scientific Research (IN)
- International Centre for Materials Physics (CN)
Publication Details
- Journal
- ACS Energy Letters
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1021/acsenergylett.4c02592
- Citations
- 12
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.50
Funders
- Department of Science and Technology, Ministry of Science and Technology, India
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Science and Engineering Research Board