Electronic interaction between photoexcited poly(p-phenylene vinylene) and carbon nanotubes

Hiroki Ago, Milo S.P. Shaffer

Research output: Contribution to journalArticle

144 Citations (Scopus)

Abstract

We have studied the electronic interaction between photoexcited poly(p-phenylene vinylene) (PPV) and multiwall carbon nanotubes (MWNT’s) using photoluminescence (PL) and photoinduced absorption (PIA) spectroscopy. We have found that the MWNT’s strongly interact with the photoexcited PPV, while there is no significant interaction in the ground state. The π conjugation of PPV was slightly reduced in the composite, reflecting the nanoscopic structural influence of the MWNT’s. On the basis of its temperature and frequency dependence, the PIA spectrum was found to originate from the same species as the pure PPV film, namely, triplet excitons formed in PPV via intersystem crossing. We have concluded that the predominant electronic interaction is the nonradiative energy transfer of singlet excitons from the PPV to the MWNT’s.

Original languageEnglish
Pages (from-to)2286-2290
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume61
Issue number3
DOIs
Publication statusPublished - Jan 1 2000

Fingerprint

Carbon Nanotubes
Carbon nanotubes
carbon nanotubes
electronics
Excitons
excitons
interactions
conjugation
Absorption spectroscopy
Energy transfer
Ground state
Absorption spectra
Photoluminescence
absorption spectroscopy
energy transfer
absorption spectra
photoluminescence
temperature dependence
composite materials
ground state

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Electronic interaction between photoexcited poly(p-phenylene vinylene) and carbon nanotubes. / Ago, Hiroki; Shaffer, Milo S.P.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 61, No. 3, 01.01.2000, p. 2286-2290.

Research output: Contribution to journalArticle

@article{a045c9a666fa40e09e2b021648ef2352,
title = "Electronic interaction between photoexcited poly(p-phenylene vinylene) and carbon nanotubes",
abstract = "We have studied the electronic interaction between photoexcited poly(p-phenylene vinylene) (PPV) and multiwall carbon nanotubes (MWNT’s) using photoluminescence (PL) and photoinduced absorption (PIA) spectroscopy. We have found that the MWNT’s strongly interact with the photoexcited PPV, while there is no significant interaction in the ground state. The π conjugation of PPV was slightly reduced in the composite, reflecting the nanoscopic structural influence of the MWNT’s. On the basis of its temperature and frequency dependence, the PIA spectrum was found to originate from the same species as the pure PPV film, namely, triplet excitons formed in PPV via intersystem crossing. We have concluded that the predominant electronic interaction is the nonradiative energy transfer of singlet excitons from the PPV to the MWNT’s.",
author = "Hiroki Ago and Shaffer, {Milo S.P.}",
year = "2000",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.61.2286",
language = "English",
volume = "61",
pages = "2286--2290",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "3",

}

TY - JOUR

T1 - Electronic interaction between photoexcited poly(p-phenylene vinylene) and carbon nanotubes

AU - Ago, Hiroki

AU - Shaffer, Milo S.P.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - We have studied the electronic interaction between photoexcited poly(p-phenylene vinylene) (PPV) and multiwall carbon nanotubes (MWNT’s) using photoluminescence (PL) and photoinduced absorption (PIA) spectroscopy. We have found that the MWNT’s strongly interact with the photoexcited PPV, while there is no significant interaction in the ground state. The π conjugation of PPV was slightly reduced in the composite, reflecting the nanoscopic structural influence of the MWNT’s. On the basis of its temperature and frequency dependence, the PIA spectrum was found to originate from the same species as the pure PPV film, namely, triplet excitons formed in PPV via intersystem crossing. We have concluded that the predominant electronic interaction is the nonradiative energy transfer of singlet excitons from the PPV to the MWNT’s.

AB - We have studied the electronic interaction between photoexcited poly(p-phenylene vinylene) (PPV) and multiwall carbon nanotubes (MWNT’s) using photoluminescence (PL) and photoinduced absorption (PIA) spectroscopy. We have found that the MWNT’s strongly interact with the photoexcited PPV, while there is no significant interaction in the ground state. The π conjugation of PPV was slightly reduced in the composite, reflecting the nanoscopic structural influence of the MWNT’s. On the basis of its temperature and frequency dependence, the PIA spectrum was found to originate from the same species as the pure PPV film, namely, triplet excitons formed in PPV via intersystem crossing. We have concluded that the predominant electronic interaction is the nonradiative energy transfer of singlet excitons from the PPV to the MWNT’s.

UR - http://www.scopus.com/inward/record.url?scp=0000295973&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000295973&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.61.2286

DO - 10.1103/PhysRevB.61.2286

M3 - Article

AN - SCOPUS:0000295973

VL - 61

SP - 2286

EP - 2290

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 1098-0121

IS - 3

ER -