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

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

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)6845-6850
Number of pages6
JournalLangmuir
Volume15
Issue number20
DOIs
Publication statusPublished - 1999 Sep 28

Fingerprint

cadmium selenides
Cadmium
Nanoparticles
Nanocrystals
Self assembly
self assembly
Monolayers
nanocrystals
Color
color
Quantum Dots
Self assembled monolayers
Scanning Probe Microscopy
Optical Devices
Semiconductor materials
Gold
Electron Scanning Microscopy
Scanning probe microscopy
Spectrum Analysis
Beam plasma interactions

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Self-assembly of monolayers of cadmium selenide nanocrystals with dual color emission. / Chen, Chia Chun; Yet, Chao Pei; Wang, Hai Ning; Chao, Chi Yau.

In: Langmuir, Vol. 15, No. 20, 28.09.1999, p. 6845-6850.

Research output: Contribution to journalArticle

Chen, Chia Chun ; Yet, Chao Pei ; Wang, Hai Ning ; Chao, Chi Yau. / Self-assembly of monolayers of cadmium selenide nanocrystals with dual color emission. In: Langmuir. 1999 ; Vol. 15, No. 20. pp. 6845-6850.
@article{c9516106771d4a33805fa8521e688df2,
title = "Self-assembly of monolayers of cadmium selenide nanocrystals with dual color emission",
abstract = "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.",
author = "Chen, {Chia Chun} and Yet, {Chao Pei} and Wang, {Hai Ning} and Chao, {Chi Yau}",
year = "1999",
month = "9",
day = "28",
doi = "10.1021/la990165p",
language = "English",
volume = "15",
pages = "6845--6850",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "20",

}

TY - JOUR

T1 - Self-assembly of monolayers of cadmium selenide nanocrystals with dual color emission

AU - Chen, Chia Chun

AU - Yet, Chao Pei

AU - Wang, Hai Ning

AU - Chao, Chi Yau

PY - 1999/9/28

Y1 - 1999/9/28

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0032646688&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032646688&partnerID=8YFLogxK

U2 - 10.1021/la990165p

DO - 10.1021/la990165p

M3 - Article

AN - SCOPUS:0032646688

VL - 15

SP - 6845

EP - 6850

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 20

ER -