Tuning electronic transport in a self-assembled nanocomposite

Wei Sea Chang, Heng Jui Liu, Vu Thanh Tra, Jhih Wei Chen, Tzu Chiao Wei, W. Y. Tzeng, Yuanmin Zhu, Ho Hung Kuo, Ying Hui Hsieh, Jheng Cyuan Lin, Qian Zhan, Chih Wei Luo, Jiunn Yuan Lin, Jr Hau He, Chung Lin Wu, Ying Hao Chu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Self-assembled nanocomposites with a high interface-to-volume ratio offer an opportunity to overcome limitations in current technology, where intriguing transport behaviors can be tailored by the choice of proper interactions of constituents. Here we integrated metallic perovskite oxide SrRuO 3-wurzite semiconductor ZnO nanocomposites to investigate the room-temperature metal-insulator transition and its effect on photoresponse. We demonstrate that the band structure at the interface can be tuned by controlling the interface-to-volume ratio of the nanocomposites. Photoinduced carrier injection driven by visible light was detected across the nanocomposites. This work shows the charge interaction of the vertically integrated multiheterostructures by incorporating a controllable interface-to-volume ratio, which is essential for optimization of the design and functionality of electronic devices.

Original languageEnglish (US)
Pages (from-to)6242-6249
Number of pages8
JournalACS Nano
Volume8
Issue number6
DOIs
StatePublished - Jun 24 2014

Keywords

  • band diagram
  • interface-to-volume ratio
  • metal-insulator transition
  • nanocomposites
  • self-assembled

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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