Electronic Coupling in InP Nanoparticle Arrays

Matthew C. Beard; Gordon M. Turner; James E. Murphy; Olga I. Micic; Mark C. Hanna; Arthur J. Nozik; Charles A. Schmuttenmaer

doi:10.1021/nl0346777

Electronic Coupling in InP Nanoparticle Arrays

Matthew C. Beard, Gordon M. Turner, James E. Murphy, Olga I. Micic, Mark C. Hanna, Arthur J. Nozik, Charles A. Schmuttenmaer

Chemistry and Nanoscience

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

93 Scopus Citations

Abstract

Arrays and lattices formed from nanoparticles (NPs) present unique opportunities for new optoelectronic materials whose properties can be tuned by controlling the size of the individual NPs and their interparticle separation to effect strong inter-NP electronic coupling. Characterization of the interdot coupling as a function of interdot distance is essential. Using time-resolved THz spectroscopy, we report a six-fold increase in the transient photoconductivity in disordered arrays of 3.2 nm diameter InP NPs separated by 0.9 nm compared to arrays with 1.8 nm separation. Photoconductivity in the arrays is compared to that of isolated NPs and InP epilayers. The epilayer samples exhibit bulk transport behavior while the NP samples do not.

Original language	American English
Pages (from-to)	1695-1699
Number of pages	5
Journal	Nano Letters
Volume	3
Issue number	12
DOIs	https://doi.org/10.1021/nl0346777 https://doi.org/10.1021/nl0346777
State	Published - 2003

NREL Publication Number

NREL/JA-590-35921

Access to Document

Cite this

@article{7bf26f9f483b48c99a77c8cdfd299978,

title = "Electronic Coupling in InP Nanoparticle Arrays",

abstract = "Arrays and lattices formed from nanoparticles (NPs) present unique opportunities for new optoelectronic materials whose properties can be tuned by controlling the size of the individual NPs and their interparticle separation to effect strong inter-NP electronic coupling. Characterization of the interdot coupling as a function of interdot distance is essential. Using time-resolved THz spectroscopy, we report a six-fold increase in the transient photoconductivity in disordered arrays of 3.2 nm diameter InP NPs separated by 0.9 nm compared to arrays with 1.8 nm separation. Photoconductivity in the arrays is compared to that of isolated NPs and InP epilayers. The epilayer samples exhibit bulk transport behavior while the NP samples do not.",

author = "Beard, {Matthew C.} and Turner, {Gordon M.} and Murphy, {James E.} and Micic, {Olga I.} and Hanna, {Mark C.} and Nozik, {Arthur J.} and Schmuttenmaer, {Charles A.}",

year = "2003",

doi = "10.1021/nl0346777",

language = "American English",

volume = "3",

pages = "1695--1699",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "12",

}

TY - JOUR

T1 - Electronic Coupling in InP Nanoparticle Arrays

AU - Beard, Matthew C.

AU - Turner, Gordon M.

AU - Murphy, James E.

AU - Micic, Olga I.

AU - Hanna, Mark C.

AU - Nozik, Arthur J.

AU - Schmuttenmaer, Charles A.

PY - 2003

Y1 - 2003

N2 - Arrays and lattices formed from nanoparticles (NPs) present unique opportunities for new optoelectronic materials whose properties can be tuned by controlling the size of the individual NPs and their interparticle separation to effect strong inter-NP electronic coupling. Characterization of the interdot coupling as a function of interdot distance is essential. Using time-resolved THz spectroscopy, we report a six-fold increase in the transient photoconductivity in disordered arrays of 3.2 nm diameter InP NPs separated by 0.9 nm compared to arrays with 1.8 nm separation. Photoconductivity in the arrays is compared to that of isolated NPs and InP epilayers. The epilayer samples exhibit bulk transport behavior while the NP samples do not.

AB - Arrays and lattices formed from nanoparticles (NPs) present unique opportunities for new optoelectronic materials whose properties can be tuned by controlling the size of the individual NPs and their interparticle separation to effect strong inter-NP electronic coupling. Characterization of the interdot coupling as a function of interdot distance is essential. Using time-resolved THz spectroscopy, we report a six-fold increase in the transient photoconductivity in disordered arrays of 3.2 nm diameter InP NPs separated by 0.9 nm compared to arrays with 1.8 nm separation. Photoconductivity in the arrays is compared to that of isolated NPs and InP epilayers. The epilayer samples exhibit bulk transport behavior while the NP samples do not.

UR - http://www.scopus.com/inward/record.url?scp=0346101508&partnerID=8YFLogxK

U2 - 10.1021/nl0346777

DO - 10.1021/nl0346777

M3 - Article

AN - SCOPUS:0346101508

SN - 1530-6984

VL - 3

SP - 1695

EP - 1699

JO - Nano Letters

JF - Nano Letters

IS - 12

ER -

Electronic Coupling in InP Nanoparticle Arrays

Abstract

NREL Publication Number

Access to Document

Other files and links

Fingerprint

Cite this