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Keywords:

  • Carbon nanotubes;
  • Chemical vapor deposition, water-assisted;
  • Heterojunctions;
  • Nanostructures, inorganic;
  • Zinc oxide
Thumbnail image of graphical abstract

Using water-assisted chemical vapor deposition, aligned CNT–ZnO (CNT: carbon nanotube) heterojunctions are formed on a Zn substrate. The aligned CNT heterojunctions with intimately connected ZnO particles/rods show interesting optoelectronic properties of practical significance. This cost-effective and efficient approach can be scaled up for the production of large-area heterojunction arrays (see figure).