CO2 laser-induced precipitation of CdSxSe1−x nanoparticles in a borosilicate glass: A new approach for the localized growth of quantum dots

Kinowski, C.; Robbe-Cristini, Odile; Bernard, Rémy; Hamzaoui, Hicham El; Boussekey, Luc; Bouazaoui, Mohamed; Capoen, Bruno

doi:10.1016/j.optmat.2015.01.023

Cited by 2 publications

(1 citation statement)

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“…The most significant difference between single structured CdSe QDs and CdSe/Cd 1−x Zn x Se with a graded shell structure in glasses is large decreases in intensities of defect emissions. PL spectra recorded from the single structured CdSe QDs showed the broad defect emission associated with the surface defect sites. The formation of the Cd 1−x Zn x Se graded shell structure on the surface of CdSe QDs successfully quenched the defect emission by passivating surface dangling bonds.…”

Section: Resultsmentioning

confidence: 99%

Continuous‐wave laser irradiation to form Cd₁₋_xZn_xSe shell on CdSe QDs in silicate glasses

2019

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CdSe QDs with Cd 1−x Zn x Se shell structures were precipitated inside silicate glasses by continuous-wave laser irradiation (λ = 532 nm) without any heat-treatment process. Emission from the surface defects (λ ≈ 620 nm) was quenched significantly and the lifetimes of the band-edge emission was increased. During the laser irradiation, Zn ions were gradually incorporated into the outer region of CdSe QDs to form Cd 1−x Zn x Se (0.76 ≤ x ≤ 0.8) alloy shells.

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Section: Resultsmentioning

confidence: 99%

Continuous‐wave laser irradiation to form Cd₁₋_xZn_xSe shell on CdSe QDs in silicate glasses

2019

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Direct femtosecond laser-induced formation of CdS quantum dots inside silicate glass

et al. 2018

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We report the one-step precipitation of CdS quantum dots in the volume of CdS-doped silicate glass under the focused femtosecond laser beam without additional heat treatment of glass. Femtosecond direct laser writing leads to the annular distribution of the precipitated CdS quantum dots in laser-written domain optical properties of which could be tuned by laser beam parameters. Increasing the laser pulse number to 10 significantly enhances luminescence intensity in the domains, while further increasing up to 10 pulses leads to luminescence quenching. A possible scenario for the formation and distribution of quantum dots is proposed.

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CO2 laser-induced precipitation of CdSxSe1−x nanoparticles in a borosilicate glass: A new approach for the localized growth of quantum dots

Cited by 2 publications

References 31 publications

Continuous‐wave laser irradiation to form Cd₁₋_xZn_xSe shell on CdSe QDs in silicate glasses

Continuous‐wave laser irradiation to form Cd₁₋_xZn_xSe shell on CdSe QDs in silicate glasses

Direct femtosecond laser-induced formation of CdS quantum dots inside silicate glass

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CO2 laser-induced precipitation of CdSxSe1−x nanoparticles in a borosilicate glass: A new approach for the localized growth of quantum dots

Cited by 2 publications

References 31 publications

Continuous‐wave laser irradiation to form Cd1−xZnxSe shell on CdSe QDs in silicate glasses

Continuous‐wave laser irradiation to form Cd1−xZnxSe shell on CdSe QDs in silicate glasses

Direct femtosecond laser-induced formation of CdS quantum dots inside silicate glass

Contact Info

Product

Resources

About

Continuous‐wave laser irradiation to form Cd₁₋_xZn_xSe shell on CdSe QDs in silicate glasses

Continuous‐wave laser irradiation to form Cd₁₋_xZn_xSe shell on CdSe QDs in silicate glasses