Template synthesis of M/M2S (M = Ag, Cu) hetero-nanowires by electrochemical technique

Changhao Liang, Kazuya Terabe, Tsuyoshi Hasegawa, Masakazu Aono

研究成果: Article

17 引用 (Scopus)

抜粋

Metal chalcogenide-based mixed ionic-electronic conductors such as Ag2S and Cu2S can be specifically architected for application in nanoelectronic devices. We present a template-confined synthesis of metal chalcogenide (e.g., Ag2S, Cu2S) nanowires for mixed conductor-based nanoelectronics. First, the metal nanowire array was electroplated into pores of a porous alumina membrane. Anodic polarization was then used to transform the metal into the metal sulfide in aqueous hydrosulfide (HS-) solutions. The as-synthesized mixed conductors' hetero-nanowire array was characterized by X-ray diffraction and electron microscopy. Electronic transport measurements show non-linear and reproducible electrical switching characteristics. The high and low resistance states can be reversibly changed by altering the polarity of the applied voltage between the bottom and top electrodes. The electrical-switching behavior is attributed to electric-field-induced accumulation and dissolution of metallic conducting pathways inside the mixed conductors' nanowires.

元の言語English
ページ(範囲)2527-2531
ページ数5
ジャーナルSolid State Ionics
177
発行部数26-32 SPEC. ISS.
DOI
出版物ステータスPublished - 2006 10 31
外部発表Yes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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