Электронный каталог

Статья

Ushkov, A.
Solvent-Directed Femtosecond Laser Ablation: Tuning Phase and Defect Engineering in Hybrid CdPS&sub(3)/CdS Nanostructures / A.Ushkov, N.Belozerova, [a.o.]. – Text : electronic // Nanoscale Advances. – 2026. – Vol. 8, No. 15. – P. 4302–4312. – URL: https://doi.org/10.1039/d6na00119j. – Bibliogr.: 28.

The limited visible-light absorption of wide-bandgap van der Waals crystals fundamentally restricts their utility in solar energy conversion. Here, we report the application of a surfactant-free, solvent-directed laser synthesis strategy to engineer the phase and optoelectronic properties of cadmium phosphorus trisulfide (CdPS&sub(3)). By exploiting the non-equilibrium thermodynamics of femtosecond pulsed laser ablation in liquid (fs-PLAL), we demonstrate a tunable transition from the stoichiometric ternary phase to a highly active binary-rich heterostructure. While ablation in water preserves the monoclinic CdPS&sub(3) lattice, the reducing environment of isopropanol triggers the formation of CdS quantum dots and metallic cadmium defect sites. This solvent-induced phase engineering transforms the ultraviolet-active host into a robust visible-light photocatalyst. The resulting hybrid CdPS&sub(3)/CdS nanocolloids exhibit superior charge separation efficiency, driven by Schottky-like metal–semiconductor junctions, achieving ∼90% degradation of methylene blue under 532 nm irradiation within 30 minutes. This work establishes f&sub(s)-PLAL as a scalable defect-engineering tool for complex ternary layered materials, offering a new design of high-performance metal-thiophosphate-based photocatalysts.



Спец.(статьи,препринты) = С 33 а - Нанофизика. Нанотехнология$
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
ОИЯИ = ОИЯИ (JINR)2026