Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays

James Murphy; Matthew Beard; Arthur Nozik

doi:10.1021/jp0646123

Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays

James Murphy, Matthew Beard, Arthur Nozik

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

Abstract

We report the sub-picosecond photoconductivity dynamics of chemically treated PbSe nanocrystal arrays utilizing time-resolved terahertz spectroscopy (TRTS). TRTS allows both the degree of interdot electronic coupling and the carrier dynamics to be extracted simultaneously. The following capping ligands bonded to the quantum dot surface were studied:? hydrazine, ethylenediamine, butlyamine, and aniline. In addition, the arrays were treated with NaOH. We find that the treatments affect both the degree of electronic coupling and the carrier dynamics.

Original language	American English
Pages (from-to)	25455-25461
Number of pages	7
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	50
DOIs	https://doi.org/10.1021/jp0646123
State	Published - 2006

NREL Publication Number

NREL/JA-270-40647

Keywords

carrier concentration
hydrazine
lead compounds
molecular structure
photoconductivity
semiconductor quantum dots

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10.1021/jp0646123

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title = "Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays",

abstract = "We report the sub-picosecond photoconductivity dynamics of chemically treated PbSe nanocrystal arrays utilizing time-resolved terahertz spectroscopy (TRTS). TRTS allows both the degree of interdot electronic coupling and the carrier dynamics to be extracted simultaneously. The following capping ligands bonded to the quantum dot surface were studied:? hydrazine, ethylenediamine, butlyamine, and aniline. In addition, the arrays were treated with NaOH. We find that the treatments affect both the degree of electronic coupling and the carrier dynamics.",

keywords = "carrier concentration, hydrazine, lead compounds, molecular structure, photoconductivity, semiconductor quantum dots",

author = "James Murphy and Matthew Beard and Arthur Nozik",

year = "2006",

doi = "10.1021/jp0646123",

language = "American English",

volume = "110",

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journal = "Journal of Physical Chemistry B",

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T1 - Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays

AU - Murphy, James

AU - Beard, Matthew

AU - Nozik, Arthur

PY - 2006

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AB - We report the sub-picosecond photoconductivity dynamics of chemically treated PbSe nanocrystal arrays utilizing time-resolved terahertz spectroscopy (TRTS). TRTS allows both the degree of interdot electronic coupling and the carrier dynamics to be extracted simultaneously. The following capping ligands bonded to the quantum dot surface were studied:? hydrazine, ethylenediamine, butlyamine, and aniline. In addition, the arrays were treated with NaOH. We find that the treatments affect both the degree of electronic coupling and the carrier dynamics.

KW - carrier concentration

KW - hydrazine

KW - lead compounds

KW - molecular structure

KW - photoconductivity

KW - semiconductor quantum dots

UR - http://www.scopus.com/inward/record.url?scp=33846686410&partnerID=8YFLogxK

U2 - 10.1021/jp0646123

DO - 10.1021/jp0646123

M3 - Article

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VL - 110

SP - 25455

EP - 25461

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 50

ER -

Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays

Abstract

NREL Publication Number

Keywords

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