Tailoring the Morphology and the Optical Properties of Semiconductor Nanocrystals by Alloying

Kim, Young-Kuk; Choi, Chul-Jin

doi:10.5772/16427

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…The PL peak of CIS/ZnS 665 nm is shifted from ∼670 nm to ∼665 nm as the temperature is increased from 6 K to 300 K. The PL irradiance reduction of CIS/ZnS 555 nm at longer wavelength region is faster than that at shorter wavelength region as the temperature is increased. This implies the existence of stronger thermal ionization and phonon-assisted nonradiative decay at the deep-trapped DA state with the relatively stronger Coulomb interaction [24].…”

Section: Methodsmentioning

confidence: 99%

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS₂/ZnS Coreshells for Hybrid White LEDs

Rice

Raut

Chib

et al. 2014

Journal of Nanomaterials

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The wide optical tunability and broad spectral distribution of CuInS2/ZnS (CIS/ZnS) coreshells are key elements for developing the hybrid white light emitting diodes where the nanoparticles are stacked on the blue LEDs. TwoCIS/ZnS555 nmandCIS/ZnS665 nmcoreshells are utilized for the hybrid white LED development. The time-resolved spectroscopy ofCIS/ZnS555 nmandCIS/ZnS665 nmreveals the correlation between the fast, intermediate, and slow decay components and the interface-trapped state and shallow- and deep-trapped states, although the fractional amplitudes of photoluminescence (PL) decay components are widely distributed throughout the entire spectra. The temperature-resolved spectroscopy explains that the PL from deep-trapped donor-acceptor (DA) state has relatively large thermal quenching, due to the relative Coulomb interaction of DA pairs, compared to the thermal quenching of PL from interface defect state and shallow-trapped DA state. A good spectral coupling between the blue diode excitation and the PL from CIS/ZnS leads to the realization of hybrid white LEDs.

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Section: Methodsmentioning

confidence: 99%

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS₂/ZnS Coreshells for Hybrid White LEDs

Rice

Raut

Chib

et al. 2014

Journal of Nanomaterials

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Compositionally Tunable Photoluminescence Emission in Cu₂ZnSn(S_1−xSe_x)₄ Nanocrystals

Singh

Levcenko

et al. 2013

Angewandte Chemie

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Compositionally Tunable Photoluminescence Emission in Cu₂ZnSn(S_1−xSe_x)₄ Nanocrystals

Singh¹,

Singh²,

Levcenko³

et al. 2013

Angew Chem Int Ed

102

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Tailoring the Morphology and the Optical Properties of Semiconductor Nanocrystals by Alloying

Cited by 3 publications

References 37 publications

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS₂/ZnS Coreshells for Hybrid White LEDs

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS₂/ZnS Coreshells for Hybrid White LEDs

Compositionally Tunable Photoluminescence Emission in Cu₂ZnSn(S_1−xSe_x)₄ Nanocrystals

Compositionally Tunable Photoluminescence Emission in Cu₂ZnSn(S_1−xSe_x)₄ Nanocrystals

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Tailoring the Morphology and the Optical Properties of Semiconductor Nanocrystals by Alloying

Cited by 3 publications

References 37 publications

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS2/ZnS Coreshells for Hybrid White LEDs

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS2/ZnS Coreshells for Hybrid White LEDs

Compositionally Tunable Photoluminescence Emission in Cu2ZnSn(S1−xSex)4 Nanocrystals

Compositionally Tunable Photoluminescence Emission in Cu2ZnSn(S1−xSex)4 Nanocrystals

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Fractional Contributions of Defect‐Originated Photoluminescence from CuInS₂/ZnS Coreshells for Hybrid White LEDs

Fractional Contributions of Defect‐Originated Photoluminescence from CuInS₂/ZnS Coreshells for Hybrid White LEDs

Compositionally Tunable Photoluminescence Emission in Cu₂ZnSn(S_1−xSe_x)₄ Nanocrystals

Compositionally Tunable Photoluminescence Emission in Cu₂ZnSn(S_1−xSe_x)₄ Nanocrystals