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Optoelectronic properties of octahedral molybdenum cluster-based materials at a single crystal level

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Research article

E. Segura-Sanchis, A. Moreno, F. Ramiro-Manzano, R. Fenollosa, M. Feliz and P. Atienzar

Dalton Transactions 52, 17818–17825 (2023) · Published 9 November 2023

Article summary

The optical and optoelectronic properties of octahedral molybdenum cluster-based materials are investigated at single-crystal level, connecting structure, absorption, emission dynamics and photoresponse.

Reference

E. Segura-Sanchis et al., “Optoelectronic properties of octahedral molybdenum cluster-based materials at a single crystal level,” Dalton Trans. 52, 17818–17825 (2023). https://doi.org/10.1039/D3DT02501B

Article access and reuse

This article is published under the Creative Commons Attribution-NonCommercial 4.0 licence. Official RSC article record · CC BY-NC 4.0 licence · RSC licences, copyright and permissions.

Figures

Schematic representation of hydrogen bonding in layers of the MoBr structure
Figure 1. Schematic representation of H-bonding (dotted lines) in the layers of the MoBr structure (atom color code: Mo in blue, Br in green and O in red). H atoms are omitted for clarity.

Source: E. Segura-Sanchis et al., Dalton Transactions 52, 17818–17825 (2023), CC BY-NC 4.0.

Figure 2. (a) Diffuse reflectance and (b) steady state PL of a collection of MoBr (black line) and MoCl (red line) single crystals, registered at λexc = 405 nm under room conditions. The inset shows the time-resolved PL monitored at 720 nm.

Source: E. Segura-Sanchis et al., Dalton Transactions 52, 17818–17825 (2023), CC BY-NC 4.0.

Figure 3. (a) Experimental scheme of the single crystal contact; (b) photocurrent spectra of a single crystal of MoBr embedded into BMIMBF4 (black line) and a drop of BMIMBF4 as a blank (red line), under excitation with a supercontinuum laser at different wavelengths; (c) MoBr and (d) MoCl current–time (I–t) curves under 405 nm LED light with 0.1 Hz light on/off cycles.

Source: E. Segura-Sanchis et al., Dalton Transactions 52, 17818–17825 (2023), CC BY-NC 4.0.

Photocurrent map, photoluminescence map, photocurrent profile and optical micrograph of a MoBr single crystal
Figure 4. (a) Photocurrent mapping of a MoBr single crystal embedded in BMIMBF4; (b) PL map of the MoBr single crystal. Both measurements were performed at room temperature with excitation using a 405 nm diode laser; (c) photocurrent profile along the dashed line depicted in (a). The maximum value corresponds to the electronic tip contact; (d) optical microscopy image of a single crystal of MoBr cluster.

Source: E. Segura-Sanchis et al., Dalton Transactions 52, 17818–17825 (2023), CC BY-NC 4.0.

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