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Related Experiment Video

Updated: Jun 12, 2026

Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees
06:50

Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees

Published on: November 29, 2016

Composition-tuned ZnO--CdSSe core--shell nanowire arrays.

Yoon Myung1, Dong Myung Jang, Tae Kwang Sung

  • 1Department of Chemistry, Korea University, Jochiwon 339-700, Korea.

ACS Nano
|June 10, 2010
PubMed
Summary

Vertically aligned ZnO--CdSSe core-shell nanocables were synthesized for enhanced photoelectrochemical performance. The CdZnSSe intermediate layer formation improves photocurrent and hydrogen generation rates, outperforming TiO2-CdS counterparts.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Photochemistry

Background:

  • Vertically aligned nanowire arrays are crucial for efficient energy conversion devices.
  • Controlling core-shell nanostructures is key to optimizing material properties.

Purpose of the Study:

  • To synthesize ZnO--CdSSe core-shell nanocable arrays with controlled composition and shell thickness.
  • To investigate the structural and optical properties of these nanocables.
  • To evaluate their performance in photoelectrochemical cells for hydrogen generation.

Main Methods:

  • Chemical vapor deposition on pre-grown ZnO nanowire arrays.
  • Composition tuning of CdS1-xSex shells (x=0, 0.5, 1).
  • Analysis of structural and optical properties.

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Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells
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Last Updated: Jun 12, 2026

Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees
06:50

Synthesis of Hierarchical ZnO/CdSSe Heterostructure Nanotrees

Published on: November 29, 2016

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
08:19

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells
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Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells

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Main Results:

  • Formation of single-crystalline wurtzite CdS1-xSex shells epitaxially grown on ZnO cores.
  • Identification of a Zn-containing alloy at the interface, reducing lattice mismatch and defects.
  • ZnO--CdSSe photoelectrodes showed higher photocurrent and hydrogen generation rates compared to TiO2-CdS.

Conclusions:

  • The formation of a CdZnSSe intermediate layer is critical for high-performance photoelectrochemical cells.
  • Epitaxial growth facilitated by the interface alloy leads to superior single-crystalline shell formation.
  • ZnO--CdSSe nanocables offer a promising platform for efficient solar hydrogen production.