Structural phase transition and photoluminescence properties of wurtzite CdS:Eu3+ nanoparticles under high pressure

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dc.creatorZhao, Rui
dc.creatorYang, Tianye
dc.creatorLuo, Yang
dc.creatorChuai, Mingyan
dc.creatorWu, Xiaoxin
dc.creatorZhang, Yanyan
dc.creatorMa, Yanzhang (TTU)
dc.creatorZhang, Mingzhe
dc.date.accessioned2022-08-31T23:01:08Z
dc.date.available2022-08-31T23:01:08Z
dc.date.issued2017
dc.descriptionThis journal is © The Royal Society of Chemistry 2017. This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licenceen_US
dc.description.abstractHigh-pressure behaviors of wurtzite CdS and CdS:Eu3+ nanoparticles (8–10 nm) were investigated by synchrotron radiation X-ray diffraction, Raman spectroscopy, and photoluminescence under high pressure at ambient temperature. The doping of Eu ions increases the phase transition pressure from wurtzite structure to rocksalt structure (CdS = 4.76 GPa and CdS:Eu = 5.22 GPa) and so does the bulk modulus (B0) of the initial and high pressure phases. This phenomenon can be attributed to the great impact on tensile strain along the c-axis of CdS nanoparticles, which is identified by the relationship of lattice contraction and the pressure obtained from Raman 1LO. The phase transitions of all samples are partly reversible. The Eu3+ ions luminescence from 5D0 → 7FJ (J = 1, 2) transition in CdS:Eu nanoparticles emerges obviously and changes during the phase transformation, which indicate the variation of the local symmetry of the Eu3+ ions. The new peak of 5D0 → 7F3 emerges at 7.26 GPa, persisting until the end of the whole experiment. The obtained CdS nanoparticles will hold promising potential in the fabrication of effective biological sensors and photodetectors for practical application under high pressure.en_US
dc.identifier.citationZhao, R., Yang, T., Luo, Y., Chuai, M., Wu, X., Zhang, Y., Ma, Y., & Zhang, M. (2017). Structural phase transition and photoluminescence properties of wurtzite CdS:Eu3+ nanoparticles under high pressure [10.1039/C7RA03878J]. RSC Advances, 7(50), 31433-31440. https://doi.org/10.1039/C7RA03878Jen_US
dc.identifier.urihttps://doi.org/10.1039/C7RA03878J
dc.identifier.urihttps://hdl.handle.net/2346/90123
dc.language.isoengen_US
dc.subjectPhotoluminescenceen_US
dc.titleStructural phase transition and photoluminescence properties of wurtzite CdS:Eu3+ nanoparticles under high pressureen_US
dc.typeArticleen_US

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