Exciton transfer and propagation in carbon nanotubes studied by near-field optical microscopy

Huihong Qian; Carsten Georgi; Neil Anderson; Alexander A. Green; Mark C. Hersam; Lukas Novotny; Achim Hartschuh

doi:10.1002/pssb.200879598

Exciton transfer and propagation in carbon nanotubes studied by near-field optical microscopy

Huihong Qian, Carsten Georgi, Neil Anderson, Alexander A. Green, Mark C. Hersam, Lukas Novotny, Achim Hartschuh

Northwestern University

Research output: Contribution to journal › Article

19 Citations (Scopus)

Abstract

We studied transfer and propagation of excitons in single semiconducting carbon nanotubes using high resolution tip-enhanced near-field photoluminescence microscopy. Exciton energy transfer is found to occur from a larger band gap nanotube to a smaller band gap nanotube. Efficient transfer however is found to be limited to a few nanometers because of competing fast non-radiative relaxation and can be explained in terms of electromagnetic near-field coupling. Towards the end of a nanotube, photoluminescence decay is observed on a length scale of 50-90 nm which is attributed to exciton propagation followed by additional non-radiative relaxation at the nanotube end.

Original language	English
Pages (from-to)	2243-2246
Number of pages	4
Journal	Physica Status Solidi (B) Basic Research
Volume	245
Issue number	10
DOIs	https://doi.org/10.1002/pssb.200879598
Publication status	Published - Oct 1 2008

Fingerprint

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

Qian, H., Georgi, C., Anderson, N., Green, A. A., Hersam, M. C., Novotny, L., & Hartschuh, A. (2008). Exciton transfer and propagation in carbon nanotubes studied by near-field optical microscopy. Physica Status Solidi (B) Basic Research, 245(10), 2243-2246. https://doi.org/10.1002/pssb.200879598

@article{f0c64c13e0fe4affa3165e7181e2d012,

title = "Exciton transfer and propagation in carbon nanotubes studied by near-field optical microscopy",

abstract = "We studied transfer and propagation of excitons in single semiconducting carbon nanotubes using high resolution tip-enhanced near-field photoluminescence microscopy. Exciton energy transfer is found to occur from a larger band gap nanotube to a smaller band gap nanotube. Efficient transfer however is found to be limited to a few nanometers because of competing fast non-radiative relaxation and can be explained in terms of electromagnetic near-field coupling. Towards the end of a nanotube, photoluminescence decay is observed on a length scale of 50-90 nm which is attributed to exciton propagation followed by additional non-radiative relaxation at the nanotube end.",

author = "Huihong Qian and Carsten Georgi and Neil Anderson and Green, {Alexander A.} and Hersam, {Mark C.} and Lukas Novotny and Achim Hartschuh",

year = "2008",

month = oct,

day = "1",

doi = "10.1002/pssb.200879598",

language = "English",

volume = "245",

pages = "2243--2246",

journal = "Physica Status Solidi (B): Basic Research",

issn = "0370-1972",

publisher = "Wiley-VCH Verlag",

number = "10",

}

TY - JOUR

T1 - Exciton transfer and propagation in carbon nanotubes studied by near-field optical microscopy

AU - Qian, Huihong

AU - Georgi, Carsten

AU - Anderson, Neil

AU - Green, Alexander A.

AU - Hersam, Mark C.

AU - Novotny, Lukas

AU - Hartschuh, Achim

PY - 2008/10/1

Y1 - 2008/10/1

N2 - We studied transfer and propagation of excitons in single semiconducting carbon nanotubes using high resolution tip-enhanced near-field photoluminescence microscopy. Exciton energy transfer is found to occur from a larger band gap nanotube to a smaller band gap nanotube. Efficient transfer however is found to be limited to a few nanometers because of competing fast non-radiative relaxation and can be explained in terms of electromagnetic near-field coupling. Towards the end of a nanotube, photoluminescence decay is observed on a length scale of 50-90 nm which is attributed to exciton propagation followed by additional non-radiative relaxation at the nanotube end.

AB - We studied transfer and propagation of excitons in single semiconducting carbon nanotubes using high resolution tip-enhanced near-field photoluminescence microscopy. Exciton energy transfer is found to occur from a larger band gap nanotube to a smaller band gap nanotube. Efficient transfer however is found to be limited to a few nanometers because of competing fast non-radiative relaxation and can be explained in terms of electromagnetic near-field coupling. Towards the end of a nanotube, photoluminescence decay is observed on a length scale of 50-90 nm which is attributed to exciton propagation followed by additional non-radiative relaxation at the nanotube end.

UR - http://www.scopus.com/inward/record.url?scp=54949147923&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54949147923&partnerID=8YFLogxK

U2 - 10.1002/pssb.200879598

DO - 10.1002/pssb.200879598

M3 - Article

AN - SCOPUS:54949147923

VL - 245

SP - 2243

EP - 2246

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

SN - 0370-1972

IS - 10

ER -

Access to Document

10.1002/pssb.200879598