Nano-textured copper oxide nanofibers for efficient air cooling

Seongpil An, Hong Seok Jo, Salem S. Al-Deyab, Alexander L. Yarin, Sam S. Yoon

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Ever decreasing of microelectronics devices is challenged by overheating and demands an increase in heat removal rate. Herein, we fabricated highly efficient heat-removal coatings comprised of copper oxide-plated polymer nanofiber layers (thorny devil nanofibers) with high surface-to-volume ratio, which facilitate heat removal from the underlying hot surfaces. The electroplating time and voltage were optimized to form fiber layers with maximal heat removal rate. The copper oxide nanofibers with the thorny devil morphology yielded a superior cooling rate compared to the pure copper nanofibers with the smooth surface morphology. This superior cooling performance is attributed to the enhanced surface area of the thorny devil nanofibers. These nanofibers were characterized with scanning electron microscopy, X-ray diffraction, atomic force microscopy, and a thermographic camera.

Original languageEnglish
Article number065306
JournalJournal of Applied Physics
Issue number6
Publication statusPublished - 2016 Feb 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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