The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform
Kenneth J. Klabunde - One of the best experts on this subject based on the ideXlab platform.
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an unusual fluorescence evolution of cadmium selenide cdse nanoparticles generated from a cadmium oxide Trioctylphosphine selenide Trioctylphosphine heterogeneous system
Chemical Physics Letters, 2009Co-Authors: Zhiqiang Yang, Sreeram Cingarapu, Kenneth J. KlabundeAbstract:In this Letter, we present a novel way to synthesize cadmium selenide (CdSe) nanoparticles from a heterogeneous system only containing cadmium oxide, Trioctylphosphine, and Trioctylphosphine selenide. Due to the relatively slow reaction rate in this system, an unusual fluorescence evolution, i.e., the blue-shift of the fluorescence peak during the early reaction stages, was surprisingly observed in a long time period (up to 3 h). The reason for this interesting phenomenon is preliminarily attributed to the gradual removal of the surface-related defects or traps when the particle size increases slowly.
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An unusual fluorescence evolution of cadmium selenide (CdSe) nanoparticles generated from a cadmium oxide/Trioctylphosphine selenide/Trioctylphosphine heterogeneous system
Chemical Physics Letters, 2009Co-Authors: Zhiqiang Yang, Sreeram Cingarapu, Kenneth J. KlabundeAbstract:In this Letter, we present a novel way to synthesize cadmium selenide (CdSe) nanoparticles from a heterogeneous system only containing cadmium oxide, Trioctylphosphine, and Trioctylphosphine selenide. Due to the relatively slow reaction rate in this system, an unusual fluorescence evolution, i.e., the blue-shift of the fluorescence peak during the early reaction stages, was surprisingly observed in a long time period (up to 3 h). The reason for this interesting phenomenon is preliminarily attributed to the gradual removal of the surface-related defects or traps when the particle size increases slowly.
Horst Weller - One of the best experts on this subject based on the ideXlab platform.
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highly luminescent monodisperse cdse and cdse zns nanocrystals synthesized in a hexadecylamine Trioctylphosphine oxide trioctylphospine mixture
Nano Letters, 2001Co-Authors: Dmitri V Talapin, Andrey L Rogach, Andreas Kornowski, Markus Haase, Horst WellerAbstract:Highly monodisperse CdSe nanocrystals were prepared in a three-component hexadecylamine−Trioctylphosphine oxide−Trioctylphosphine (HDA−TOPO−TOP) mixture. This modification of the conventional organometallic synthesis of CdSe nanocrystals in TOPO−TOP provides much better control over growth dynamics, resulting in the absence of defocusing of the particle size distribution during growth. The room-temperature quantum efficiency of the band edge luminescence of CdSe nanocrystals can be improved to 40−60% by surface passivation with inorganic (ZnS) or organic (alkylamines) shells.
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Highly Luminescent Monodisperse CdSe and CdSe/ZnS Nanocrystals Synthesized in a Hexadecylamine−Trioctylphosphine Oxide−Trioctylphospine Mixture
Nano Letters, 2001Co-Authors: Dmitri V Talapin, Andrey L Rogach, Andreas Kornowski, Markus Haase, Horst WellerAbstract:Highly monodisperse CdSe nanocrystals were prepared in a three-component hexadecylamine−Trioctylphosphine oxide−Trioctylphosphine (HDA−TOPO−TOP) mixture. This modification of the conventional organometallic synthesis of CdSe nanocrystals in TOPO−TOP provides much better control over growth dynamics, resulting in the absence of defocusing of the particle size distribution during growth. The room-temperature quantum efficiency of the band edge luminescence of CdSe nanocrystals can be improved to 40−60% by surface passivation with inorganic (ZnS) or organic (alkylamines) shells.
Zhiqiang Yang - One of the best experts on this subject based on the ideXlab platform.
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an unusual fluorescence evolution of cadmium selenide cdse nanoparticles generated from a cadmium oxide Trioctylphosphine selenide Trioctylphosphine heterogeneous system
Chemical Physics Letters, 2009Co-Authors: Zhiqiang Yang, Sreeram Cingarapu, Kenneth J. KlabundeAbstract:In this Letter, we present a novel way to synthesize cadmium selenide (CdSe) nanoparticles from a heterogeneous system only containing cadmium oxide, Trioctylphosphine, and Trioctylphosphine selenide. Due to the relatively slow reaction rate in this system, an unusual fluorescence evolution, i.e., the blue-shift of the fluorescence peak during the early reaction stages, was surprisingly observed in a long time period (up to 3 h). The reason for this interesting phenomenon is preliminarily attributed to the gradual removal of the surface-related defects or traps when the particle size increases slowly.
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An unusual fluorescence evolution of cadmium selenide (CdSe) nanoparticles generated from a cadmium oxide/Trioctylphosphine selenide/Trioctylphosphine heterogeneous system
Chemical Physics Letters, 2009Co-Authors: Zhiqiang Yang, Sreeram Cingarapu, Kenneth J. KlabundeAbstract:In this Letter, we present a novel way to synthesize cadmium selenide (CdSe) nanoparticles from a heterogeneous system only containing cadmium oxide, Trioctylphosphine, and Trioctylphosphine selenide. Due to the relatively slow reaction rate in this system, an unusual fluorescence evolution, i.e., the blue-shift of the fluorescence peak during the early reaction stages, was surprisingly observed in a long time period (up to 3 h). The reason for this interesting phenomenon is preliminarily attributed to the gradual removal of the surface-related defects or traps when the particle size increases slowly.
Dmitri V Talapin - One of the best experts on this subject based on the ideXlab platform.
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highly luminescent monodisperse cdse and cdse zns nanocrystals synthesized in a hexadecylamine Trioctylphosphine oxide trioctylphospine mixture
Nano Letters, 2001Co-Authors: Dmitri V Talapin, Andrey L Rogach, Andreas Kornowski, Markus Haase, Horst WellerAbstract:Highly monodisperse CdSe nanocrystals were prepared in a three-component hexadecylamine−Trioctylphosphine oxide−Trioctylphosphine (HDA−TOPO−TOP) mixture. This modification of the conventional organometallic synthesis of CdSe nanocrystals in TOPO−TOP provides much better control over growth dynamics, resulting in the absence of defocusing of the particle size distribution during growth. The room-temperature quantum efficiency of the band edge luminescence of CdSe nanocrystals can be improved to 40−60% by surface passivation with inorganic (ZnS) or organic (alkylamines) shells.
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Highly Luminescent Monodisperse CdSe and CdSe/ZnS Nanocrystals Synthesized in a Hexadecylamine−Trioctylphosphine Oxide−Trioctylphospine Mixture
Nano Letters, 2001Co-Authors: Dmitri V Talapin, Andrey L Rogach, Andreas Kornowski, Markus Haase, Horst WellerAbstract:Highly monodisperse CdSe nanocrystals were prepared in a three-component hexadecylamine−Trioctylphosphine oxide−Trioctylphosphine (HDA−TOPO−TOP) mixture. This modification of the conventional organometallic synthesis of CdSe nanocrystals in TOPO−TOP provides much better control over growth dynamics, resulting in the absence of defocusing of the particle size distribution during growth. The room-temperature quantum efficiency of the band edge luminescence of CdSe nanocrystals can be improved to 40−60% by surface passivation with inorganic (ZnS) or organic (alkylamines) shells.
Sreeram Cingarapu - One of the best experts on this subject based on the ideXlab platform.
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an unusual fluorescence evolution of cadmium selenide cdse nanoparticles generated from a cadmium oxide Trioctylphosphine selenide Trioctylphosphine heterogeneous system
Chemical Physics Letters, 2009Co-Authors: Zhiqiang Yang, Sreeram Cingarapu, Kenneth J. KlabundeAbstract:In this Letter, we present a novel way to synthesize cadmium selenide (CdSe) nanoparticles from a heterogeneous system only containing cadmium oxide, Trioctylphosphine, and Trioctylphosphine selenide. Due to the relatively slow reaction rate in this system, an unusual fluorescence evolution, i.e., the blue-shift of the fluorescence peak during the early reaction stages, was surprisingly observed in a long time period (up to 3 h). The reason for this interesting phenomenon is preliminarily attributed to the gradual removal of the surface-related defects or traps when the particle size increases slowly.
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An unusual fluorescence evolution of cadmium selenide (CdSe) nanoparticles generated from a cadmium oxide/Trioctylphosphine selenide/Trioctylphosphine heterogeneous system
Chemical Physics Letters, 2009Co-Authors: Zhiqiang Yang, Sreeram Cingarapu, Kenneth J. KlabundeAbstract:In this Letter, we present a novel way to synthesize cadmium selenide (CdSe) nanoparticles from a heterogeneous system only containing cadmium oxide, Trioctylphosphine, and Trioctylphosphine selenide. Due to the relatively slow reaction rate in this system, an unusual fluorescence evolution, i.e., the blue-shift of the fluorescence peak during the early reaction stages, was surprisingly observed in a long time period (up to 3 h). The reason for this interesting phenomenon is preliminarily attributed to the gradual removal of the surface-related defects or traps when the particle size increases slowly.
