Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals

Matthew T. Frederick; Victor A. Amin; Nathaniel K. Swenson; Andrew Y. Ho; Emily A. Weiss

doi:10.1021/nl304098e

Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals

Matthew T. Frederick, Victor A. Amin, Nathaniel K. Swenson, Andrew Y. Ho, Emily A. Weiss^*

^*Corresponding author for this work

Chemistry

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

107 Scopus citations

Abstract

This paper describes a method to control the quantum confinement, and therefore the energy, of excitonic holes in CdSe QDs through adsorption of the hole-delocalizing ligand phenyldithiocarbamate, PTC, and para substitutions of the phenyl ring of this ligand with electron-donating or -withdrawing groups. These substitutions control hole delocalization in the QDs through the energetic alignment of the highest occupied orbitals of PTC with the highest density-of-states region of the CdSe valence band, to which PTC couples selectively.

Original language	English (US)
Pages (from-to)	287-292
Number of pages	6
Journal	Nano letters
Volume	13
Issue number	1
DOIs	https://doi.org/10.1021/nl304098e
State	Published - Jan 9 2013

Keywords

Bathochromic shift
carrier delocalization
confinement
dithiocarbamate

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl304098e

Cite this

@article{7f8f6e5ea0c14c7fa7d70743bc65eca4,

title = "Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals",

abstract = "This paper describes a method to control the quantum confinement, and therefore the energy, of excitonic holes in CdSe QDs through adsorption of the hole-delocalizing ligand phenyldithiocarbamate, PTC, and para substitutions of the phenyl ring of this ligand with electron-donating or -withdrawing groups. These substitutions control hole delocalization in the QDs through the energetic alignment of the highest occupied orbitals of PTC with the highest density-of-states region of the CdSe valence band, to which PTC couples selectively.",

keywords = "Bathochromic shift, carrier delocalization, confinement, dithiocarbamate",

author = "Frederick, {Matthew T.} and Amin, {Victor A.} and Swenson, {Nathaniel K.} and Ho, {Andrew Y.} and Weiss, {Emily A.}",

year = "2013",

month = jan,

day = "9",

doi = "10.1021/nl304098e",

language = "English (US)",

volume = "13",

pages = "287--292",

journal = "Nano letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals

AU - Frederick, Matthew T.

AU - Amin, Victor A.

AU - Swenson, Nathaniel K.

AU - Ho, Andrew Y.

AU - Weiss, Emily A.

PY - 2013/1/9

Y1 - 2013/1/9

N2 - This paper describes a method to control the quantum confinement, and therefore the energy, of excitonic holes in CdSe QDs through adsorption of the hole-delocalizing ligand phenyldithiocarbamate, PTC, and para substitutions of the phenyl ring of this ligand with electron-donating or -withdrawing groups. These substitutions control hole delocalization in the QDs through the energetic alignment of the highest occupied orbitals of PTC with the highest density-of-states region of the CdSe valence band, to which PTC couples selectively.

AB - This paper describes a method to control the quantum confinement, and therefore the energy, of excitonic holes in CdSe QDs through adsorption of the hole-delocalizing ligand phenyldithiocarbamate, PTC, and para substitutions of the phenyl ring of this ligand with electron-donating or -withdrawing groups. These substitutions control hole delocalization in the QDs through the energetic alignment of the highest occupied orbitals of PTC with the highest density-of-states region of the CdSe valence band, to which PTC couples selectively.

KW - Bathochromic shift

KW - carrier delocalization

KW - confinement

KW - dithiocarbamate

UR - http://www.scopus.com/inward/record.url?scp=84872105186&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872105186&partnerID=8YFLogxK

U2 - 10.1021/nl304098e

DO - 10.1021/nl304098e

M3 - Article

C2 - 23244048

AN - SCOPUS:84872105186

SN - 1530-6984

VL - 13

SP - 287

EP - 292

JO - Nano letters

JF - Nano letters

IS - 1

ER -

Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

CCDC 1824271: Experimental Crystal Structure Determination

Cite this

Control of exciton confinement in quantum dot-organic complexes through energetic alignment of interfacial orbitals

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

CCDC 1824271: Experimental Crystal Structure Determination

Cite this