Synergistic Effects of Defects and Strain on Photoluminescence in Van der Waals Layered Crystal AgScP2S6${\rm AgScP_{2}S_{6}}$

Abstract Metal thiophosphates (MTPs) are a large family of 2D materials that exhibit large structural and chemical diversity. They also show promise for applications in energy harvesting and photodetection. Strain and defect engineering have previously been demonstrated as useful mechanisms to tune several properties of MTPs such as resistivity, magnetic state, and electronic band gap. However, the effect of these stimuli on engineering tunable light emission in MTPs remains unexplored. Here, it is experimentally demonstrated that sulfur vacancies in metal thiophosphate allow defect‐state‐to‐valence‐band transitions leading to visible light emission at sub‐bandgap energies, while structural defects in the material can enhance and modulate the photoluminescence spectrum. It is also showed that the structural‐defect‐enhanced light emission can be further tuned by temperature‐induced strain gradients.

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Publication Details

Journal
Advanced Optical Materials
Published
2024-09-19
DOI
https://doi.org/10.1002/adom.202400481
Citations
2
Primary Topic
2D Materials and Applications
Type
article
Field-Weighted Citation Impact
0.23

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article

Synergistic Effects of Defects and Strain on Photoluminescence in Van der Waals Layered Crystal AgScP2S6${\rm AgScP_{2}S_{6}}$

Rahul Rao, Damian Włodarczyk, Michael A. Susner, A. Suchocki et al.
2 citations
Advanced Optical Materials
2D Materials and Applications
0.23
article

Synergistic Effects of Defects and Strain on Photoluminescence in Van der Waals Layered Crystal AgScP2S6${\rm AgScP_{2}S_{6}}$

Rahul Rao, Damian Włodarczyk, Michael A. Susner, A. Suchocki, Ajeesh Kumar Somakumar, P. Sybilski, Svetlana V. Boriskina, Ryan Siebenaller, Abhishek Mukherjee
article en
2 citations

Abstract

Abstract Metal thiophosphates (MTPs) are a large family of 2D materials that exhibit large structural and chemical diversity. They also show promise for applications in energy harvesting and photodetection. Strain and defect engineering have previously been demonstrated as useful mechanisms to tune several properties of MTPs such as resistivity, magnetic state, and electronic band gap. However, the effect of these stimuli on engineering tunable light emission in MTPs remains unexplored. Here, it is experimentally demonstrated that sulfur vacancies in metal thiophosphate allow defect‐state‐to‐valence‐band transitions leading to visible light emission at sub‐bandgap energies, while structural defects in the material can enhance and modulate the photoluminescence spectrum. It is also showed that the structural‐defect‐enhanced light emission can be further tuned by temperature‐induced strain gradients.

Advanced Optical MaterialsVol. 12(35)
United States Air Force Research Laboratory (US), Institute of Physics (PL), The Ohio State University (US), Massachusetts Institute of Technology (US), Polish Academy of Sciences (PL)
Siebel Scholars Foundation, Asian Office of Aerospace Research and Development, Multidisciplinary University Research Initiative, Division of Materials Research, Air Force Office of Scientific Research, Army Research Office
Openalex Percentile: Top 51%
2D Materials and Applications
0.23
DOIOpen Access PDFOpenAlex
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