Plasma‐Assisted Synthesis of Silicon Nanocrystal Inks

@article{Mangolini2007PlasmaAssistedSO,
  title={Plasma‐Assisted Synthesis of Silicon Nanocrystal Inks},
  author={Lorenzo Mangolini and Uwe R. Kortshagen},
  journal={Advanced Materials},
  year={2007},
  volume={19}
}

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References

SHOWING 1-10 OF 28 REFERENCES

Size Tunable Visible Luminescence from Individual Organic Monolayer Stabilized Silicon Nanocrystal Quantum Dots

Quantum confinement in nanostructured silicon can lead to efficient light emission. However, the photoluminescence (PL) lifetimes in nanostructured silicon are typically very long−approximately 3

Silicon nanocrystals with ensemble quantum yields exceeding 60

Silicon nanocrystals with diameters of less than 5nm show efficient photoluminescence at room temperature. For ensembles of silicon quantum dots, previous reports of photoluminescence quantum yields

Charge injection and transport in films of CdSe nanocrystals

We have studied charge injection and charge transport in thin disordered films of CdSe nanocrystals between metal electrodes. Current–voltage characteristics of these devices are investigated as a

Electronic transport in films of colloidal CdSe nanocrystals

We present results for electronic transport measurements on large three-dimensional arrays of CdSe nanocrystals. In response to a step in the applied voltage, we observe a power-law decay of the

Silicon hydride composition of plasma-deposited hydrogenated amorphous and nanocrystalline silicon films and surfaces

In situ attenuated total reflection Fourier transform infrared spectroscopy was used to study the H bonding on the surfaces of a-Si:H and nc-Si:H during plasma enhanced chemical vapor deposition from

Chemical Vapor Deposition of Zirconium Oxide on Aerosolized Silicon Nanoparticles

Nanoscale shells of ZrO2 were deposited onto size-selected, aerosolized Si nanoparticles by chemical vapor deposition (CVD). The CVD precursor was nitronium pentanitratozirconate (ZN,

High efficiency photoluminescence from silicon nanocrystals prepared by plasma synthesis and organic surface passivation

An efficient synthesis route for highly luminescent silicon quantum dots is presented. Silicon nanocrystals were synthesized in the gas phase using an argon-silane non-thermal plasma in a continuous