Enhanced Charge Transport in ZnO Nanocomposite Through Interface Control Using Multiwall Carbon Nanotubes

Woo Hyun Nam, Bo Bae Kim, Young Soo Lim, Won Seon Seo, Hyung Ho Park, Jeong Yong Lee, X. D. Zhou

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Hybrid strategy of ZnO with carbon nanotube (CNT) has been attempted, and synergistic effects have been demonstrated in ZnO-CNT hybrid nanostructures owing to the advantageous effects of interface modification on the charge transport process. Here, we report the effects of interface control using multiwall CNTs (MWCNTs) on the charge transport properties in Al-doped ZnO (AZO) nanocomposite. Although the AZO-MWCNT nanocomposite is composed of numerous nanograins, it shows single crystalline charge transport behavior due to significantly weakened grain-boundary scattering at room temperature. The dominant charge transport mechanism is converted from lattice vibration scattering to grain-boundary scattering at 873 K due to the variation in the charge distribution at the grain boundary. The results demonstrate that interface control using carbon nanomaterials has a significant effect on the charge transport behavior in AZO nanocomposite.

Original languageEnglish
Pages (from-to)2077-2082
Number of pages6
JournalJournal of the American Ceramic Society
Issue number6
Publication statusPublished - 2016 Jun 1

Bibliographical note

Funding Information:
This work was supported by IBS R004 G3 and also supported by Mid career Researcher Program (2015R1A2A2A01005929) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology, Republic of Korea.

Publisher Copyright:
© 2016 The American Ceramic Society.

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry


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