Layer-by-layer self-assembly of composite films of CdS nanoparticle and alkanedithiol on gold: An X-ray photoelectron spectroscopic characterization

Takuya Nakanishi, Bunsho Ohtani, Katsuaki Shimazu, Kohei Uosaki

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57 Citations (Scopus)

Abstract

Layer-by-layer self-assembly of composite thin films of cadmium sulfide (CdS) nanoparticle and alkanedithiol was achieved on a gold substrate by an alternate immersion into solutions of dithiols (1,6-hexanedithiol and 1,10-decanedithiol) and solution containing CdS nanoparticles (ca. 3 nm in diameter). The layer-by-layer structure was confirmed by angle-resolved X-ray photoelectron spectroscopy (XPS) at each composite-film preparation step. The proposed structure and mechanism of self-assembly were in agreement with our previous results obtained by Fourier transform infrared reflection-absorption spectroscopy.

Original languageEnglish
Pages (from-to)233-237
Number of pages5
JournalChemical Physics Letters
Volume278
Issue number4-6
Publication statusPublished - 1997 Oct 31
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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