Sequential cation exchange generated superlattice nanowires forming multiple p-n heterojunctions

Chih Shan Tan, Ching Hung Hsiao, Shau Chieh Wang, Pei Hsuan Liu, Ming Yen Lu, Michael H. Huang*, Hao Ouyang, Lih Juann Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Fabrication of superlattice nanowires (NWs) with precisely controlled segments normally requires sequential introduction of reagents to the growing wires at elevated temperatures and low pressure. Here we demonstrate the fabrication of superlattice NWs possessing multiple p-n heterojunctions by converting the initially formed CdS to Cua2S NWs first and then to segmented Cu2S-Ag2S NWs through sequential cation exchange at low temperatures. In the formation of Cu2S NWs.

Original languageEnglish
Pages (from-to)9422-9426
Number of pages5
JournalACS Nano
Volume8
Issue number9
DOIs
StatePublished - 23 Sep 2014

Keywords

  • cation exchange
  • heterojunction
  • p-n diode
  • superlattice

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