Structure determination and homogeneous optical properties of CdS/HgS quantum dots

A. Mews; U. Banin; A. V. Kadavanich; A. P. Alivisatos

doi:10.1002/bbpc.19971011111

Structure determination and homogeneous optical properties of CdS/HgS quantum dots

A. Mews^*, U. Banin, A. V. Kadavanich, A. P. Alivisatos

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The structural and optical properties of heterogeneous semiconductor nanoparticles consisting of CdS and HgS are investigated by High Resolution Electron Microscopy (HRTEM) and selective spectroscopy like Hole Burning (HB) and Fluorescence Line Narrowing (FLN). The HRTEM study shows that epitaxy is possible in nanocrystals, provided the crystallites have well defined faceted shapes to begin with. From the HB- and FLN experiments homogeneous absorption and fluorescence spectra are calculated. It could be shown that the absorption is coupled to HgS-like phonons (250 cm^-1) whereas the emission frequency is closer to the LO phonon frequency of CdS.

Original language	English
Pages (from-to)	1621-1625
Number of pages	5
Journal	Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics
Volume	101
Issue number	11
DOIs	https://doi.org/10.1002/bbpc.19971011111
State	Published - 1997

Keywords

Complex Compounds
Electron Microscopy
Nanocrystal
Semiconductors
Spectroscopy, Visible

Access to Document

10.1002/bbpc.19971011111

Cite this

@article{6e12a79e7cfa4e8194034f9f5ae12077,

title = "Structure determination and homogeneous optical properties of CdS/HgS quantum dots",

abstract = "The structural and optical properties of heterogeneous semiconductor nanoparticles consisting of CdS and HgS are investigated by High Resolution Electron Microscopy (HRTEM) and selective spectroscopy like Hole Burning (HB) and Fluorescence Line Narrowing (FLN). The HRTEM study shows that epitaxy is possible in nanocrystals, provided the crystallites have well defined faceted shapes to begin with. From the HB- and FLN experiments homogeneous absorption and fluorescence spectra are calculated. It could be shown that the absorption is coupled to HgS-like phonons (250 cm-1) whereas the emission frequency is closer to the LO phonon frequency of CdS.",

keywords = "Complex Compounds, Electron Microscopy, Nanocrystal, Semiconductors, Spectroscopy, Visible",

author = "A. Mews and U. Banin and Kadavanich, {A. V.} and Alivisatos, {A. P.}",

year = "1997",

doi = "10.1002/bbpc.19971011111",

language = "אנגלית",

volume = "101",

pages = "1621--1625",

journal = "Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics",

issn = "0940-483X",

publisher = "VCH Publishers",

number = "11",

}

TY - JOUR

T1 - Structure determination and homogeneous optical properties of CdS/HgS quantum dots

AU - Mews, A.

AU - Banin, U.

AU - Kadavanich, A. V.

AU - Alivisatos, A. P.

PY - 1997

Y1 - 1997

N2 - The structural and optical properties of heterogeneous semiconductor nanoparticles consisting of CdS and HgS are investigated by High Resolution Electron Microscopy (HRTEM) and selective spectroscopy like Hole Burning (HB) and Fluorescence Line Narrowing (FLN). The HRTEM study shows that epitaxy is possible in nanocrystals, provided the crystallites have well defined faceted shapes to begin with. From the HB- and FLN experiments homogeneous absorption and fluorescence spectra are calculated. It could be shown that the absorption is coupled to HgS-like phonons (250 cm-1) whereas the emission frequency is closer to the LO phonon frequency of CdS.

AB - The structural and optical properties of heterogeneous semiconductor nanoparticles consisting of CdS and HgS are investigated by High Resolution Electron Microscopy (HRTEM) and selective spectroscopy like Hole Burning (HB) and Fluorescence Line Narrowing (FLN). The HRTEM study shows that epitaxy is possible in nanocrystals, provided the crystallites have well defined faceted shapes to begin with. From the HB- and FLN experiments homogeneous absorption and fluorescence spectra are calculated. It could be shown that the absorption is coupled to HgS-like phonons (250 cm-1) whereas the emission frequency is closer to the LO phonon frequency of CdS.

KW - Complex Compounds

KW - Electron Microscopy

KW - Nanocrystal

KW - Semiconductors

KW - Spectroscopy, Visible

UR - http://www.scopus.com/inward/record.url?scp=0031272747&partnerID=8YFLogxK

U2 - 10.1002/bbpc.19971011111

DO - 10.1002/bbpc.19971011111

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0031272747

SN - 0940-483X

VL - 101

SP - 1621

EP - 1625

JO - Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics

JF - Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics

IS - 11

ER -

Structure determination and homogeneous optical properties of CdS/HgS quantum dots

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this