Single-particle studies of band alignment effects on electron transfer dynamics from semiconductor hetero-nanostructures to single-walled carbon nanotubes

Chi Tsu Yuan; Yong Gang Wang; Kuo Yen Huang; Ting Yu Chen; Pyng Yu; Jau Tang; Amit Sitt; Uri Banin; Oded Millo

doi:10.1021/nn2036957

Single-particle studies of band alignment effects on electron transfer dynamics from semiconductor hetero-nanostructures to single-walled carbon nanotubes

Chi Tsu Yuan, Yong Gang Wang, Kuo Yen Huang, Ting Yu Chen, Pyng Yu, Jau Tang, Amit Sitt, Uri Banin, Oded Millo

The Hebrew University of Jerusalem

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

Abstract

Figure Persented: We utilize single-molecule spectroscopy combined with time-correlated single-photon counting to probe the electron transfer (ET) rates from various types of semiconductor hetero-nanocrystals, having either type-I or type-II band alignment, to single-walled carbon nanotubes. A significantly larger ET rate was observed for type-II ZnSe/CdS dot-in-rod nanostructures as compared to type-I spherical CdSe/ZnS core/shell quantum dots and to CdSe/CdS dot-in-rod structures. Furthermore, such rapid ET dynamics can compete with both Auger and radiative recombination processes, with significance for effective photovoltaic operation.

Original language	English
Pages (from-to)	176-182
Number of pages	7
Journal	ACS Nano
Volume	6
Issue number	1
DOIs	https://doi.org/10.1021/nn2036957
State	Published - 24 Jan 2012

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

carbon nanotubes
colloidal nanocrystals
single-molecule spectroscopy

All Science Journal Classification (ASJC) codes

General Materials Science
General Engineering
General Physics and Astronomy

Access to Document

10.1021/nn2036957

Cite this

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title = "Single-particle studies of band alignment effects on electron transfer dynamics from semiconductor hetero-nanostructures to single-walled carbon nanotubes",

abstract = "Figure Persented: We utilize single-molecule spectroscopy combined with time-correlated single-photon counting to probe the electron transfer (ET) rates from various types of semiconductor hetero-nanocrystals, having either type-I or type-II band alignment, to single-walled carbon nanotubes. A significantly larger ET rate was observed for type-II ZnSe/CdS dot-in-rod nanostructures as compared to type-I spherical CdSe/ZnS core/shell quantum dots and to CdSe/CdS dot-in-rod structures. Furthermore, such rapid ET dynamics can compete with both Auger and radiative recombination processes, with significance for effective photovoltaic operation.",

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author = "Yuan, \{Chi Tsu\} and Wang, \{Yong Gang\} and Huang, \{Kuo Yen\} and Chen, \{Ting Yu\} and Pyng Yu and Jau Tang and Amit Sitt and Uri Banin and Oded Millo",

year = "2012",

month = jan,

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doi = "10.1021/nn2036957",

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TY - JOUR

T1 - Single-particle studies of band alignment effects on electron transfer dynamics from semiconductor hetero-nanostructures to single-walled carbon nanotubes

AU - Yuan, Chi Tsu

AU - Wang, Yong Gang

AU - Huang, Kuo Yen

AU - Chen, Ting Yu

AU - Yu, Pyng

AU - Tang, Jau

AU - Sitt, Amit

AU - Banin, Uri

AU - Millo, Oded

PY - 2012/1/24

Y1 - 2012/1/24

N2 - Figure Persented: We utilize single-molecule spectroscopy combined with time-correlated single-photon counting to probe the electron transfer (ET) rates from various types of semiconductor hetero-nanocrystals, having either type-I or type-II band alignment, to single-walled carbon nanotubes. A significantly larger ET rate was observed for type-II ZnSe/CdS dot-in-rod nanostructures as compared to type-I spherical CdSe/ZnS core/shell quantum dots and to CdSe/CdS dot-in-rod structures. Furthermore, such rapid ET dynamics can compete with both Auger and radiative recombination processes, with significance for effective photovoltaic operation.

AB - Figure Persented: We utilize single-molecule spectroscopy combined with time-correlated single-photon counting to probe the electron transfer (ET) rates from various types of semiconductor hetero-nanocrystals, having either type-I or type-II band alignment, to single-walled carbon nanotubes. A significantly larger ET rate was observed for type-II ZnSe/CdS dot-in-rod nanostructures as compared to type-I spherical CdSe/ZnS core/shell quantum dots and to CdSe/CdS dot-in-rod structures. Furthermore, such rapid ET dynamics can compete with both Auger and radiative recombination processes, with significance for effective photovoltaic operation.

KW - carbon nanotubes

KW - colloidal nanocrystals

KW - single-molecule spectroscopy

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U2 - 10.1021/nn2036957

DO - 10.1021/nn2036957

M3 - مقالة

C2 - 22136306

SN - 1936-0851

VL - 6

SP - 176

EP - 182

JO - ACS Nano

JF - ACS Nano

IS - 1

ER -

Single-particle studies of band alignment effects on electron transfer dynamics from semiconductor hetero-nanostructures to single-walled carbon nanotubes

Abstract

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All Science Journal Classification (ASJC) codes

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