Self-assembly of monolayers of cadmium selenide nanocrystals with dual color emission

Chia Chun Chen, Chao Pei Yet, Hai Ning Wang, Chi Yau Chao

研究成果: 雜誌貢獻期刊論文同行評審

82 引文 斯高帕斯(Scopus)

摘要

We report here a simple and low-temperature method to induce the patterning of monolayers of semiconductor nanocrystals with dual color emission. We have used the patterned self-assembled monolayers (SAMs) of alkanethiolates on gold as a template to assemble two specific size CdSe nanocrystals into regular two-dimensional arrays. The nanocrystal arrays on each region of SAMs are organized spontaneously on the basis of different interactions between specific size nanocrystals and alkanethiolates of SAMs. As characterized by scanning probe microscopy, scanning electron microscopy, and optical spectroscopy, our results show that small and specific size nanocrystals can be assembled into large monolayer arrays with micrometer-scale features. Our method provides a new way to assemble semiconductor nanocrystals and should be useful for the fabrication of optical and electronic devices composed of nanocrystals.

原文英語
頁(從 - 到)6845-6850
頁數6
期刊Langmuir
15
發行號20
DOIs
出版狀態已發佈 - 1999 九月 28
對外發佈

ASJC Scopus subject areas

  • 材料科學(全部)
  • 凝聚態物理學
  • 表面和介面
  • 光譜
  • 電化學

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