Photoinduced electron transfer in PPV-viologen composites

J. I. Lee, H. Y. Lee, H. K. Shim, H. S. Eom, S. C. Jeoung, Dongho Kim

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

PPV was sensitized by ethyl viologen which is well known as a good electron acceptor, to achieve efficient ionization of the excitons created by photoexcitation of PPV. PPV/ethyl-viologen composites were successfully prepared from PPV-precursor and ethyl-viologen because both compounds could be soluble in polar solvents such as methanol, water etc. We observed dramatic decrease of photoluminescence efficiency in the PPV/ethyl-viologen composite film as compared with PPV film. This is attributed to photoinduced electron transfer in PPV/ethyl-viologen composites and the efficient ionization of the excitons was occurred in this composite film. Time-resolved photoluminescence of composite films was also studied to obtain the information of this photoinduced electron transfer dynamics.

Original languageEnglish
Pages (from-to)257-260
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume316
DOIs
Publication statusPublished - 1998 Jan 1
EventProceedings of the 1998 IEEE Instrumentation and Measurement Technology Conference, IMTC. Part 1 (of 2) - St.Paul, MN, USA
Duration: 1998 May 181998 May 21

Fingerprint

Viologens
Composite films
electron transfer
Excitons
Ionization
composite materials
Electrons
Photoluminescence
Composite materials
Photoexcitation
excitons
Methanol
photoluminescence
ionization
photoexcitation
methyl alcohol
Water
water

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

@article{17964b7f6dd04f4d97516858c8cabd3d,
title = "Photoinduced electron transfer in PPV-viologen composites",
abstract = "PPV was sensitized by ethyl viologen which is well known as a good electron acceptor, to achieve efficient ionization of the excitons created by photoexcitation of PPV. PPV/ethyl-viologen composites were successfully prepared from PPV-precursor and ethyl-viologen because both compounds could be soluble in polar solvents such as methanol, water etc. We observed dramatic decrease of photoluminescence efficiency in the PPV/ethyl-viologen composite film as compared with PPV film. This is attributed to photoinduced electron transfer in PPV/ethyl-viologen composites and the efficient ionization of the excitons was occurred in this composite film. Time-resolved photoluminescence of composite films was also studied to obtain the information of this photoinduced electron transfer dynamics.",
author = "Lee, {J. I.} and Lee, {H. Y.} and Shim, {H. K.} and Eom, {H. S.} and Jeoung, {S. C.} and Dongho Kim",
year = "1998",
month = "1",
day = "1",
doi = "10.1080/10587259808044503",
language = "English",
volume = "316",
pages = "257--260",
journal = "Molecular Crystals and Liquid Crystals",
issn = "1542-1406",
publisher = "Taylor and Francis Ltd.",

}

Photoinduced electron transfer in PPV-viologen composites. / Lee, J. I.; Lee, H. Y.; Shim, H. K.; Eom, H. S.; Jeoung, S. C.; Kim, Dongho.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 316, 01.01.1998, p. 257-260.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Photoinduced electron transfer in PPV-viologen composites

AU - Lee, J. I.

AU - Lee, H. Y.

AU - Shim, H. K.

AU - Eom, H. S.

AU - Jeoung, S. C.

AU - Kim, Dongho

PY - 1998/1/1

Y1 - 1998/1/1

N2 - PPV was sensitized by ethyl viologen which is well known as a good electron acceptor, to achieve efficient ionization of the excitons created by photoexcitation of PPV. PPV/ethyl-viologen composites were successfully prepared from PPV-precursor and ethyl-viologen because both compounds could be soluble in polar solvents such as methanol, water etc. We observed dramatic decrease of photoluminescence efficiency in the PPV/ethyl-viologen composite film as compared with PPV film. This is attributed to photoinduced electron transfer in PPV/ethyl-viologen composites and the efficient ionization of the excitons was occurred in this composite film. Time-resolved photoluminescence of composite films was also studied to obtain the information of this photoinduced electron transfer dynamics.

AB - PPV was sensitized by ethyl viologen which is well known as a good electron acceptor, to achieve efficient ionization of the excitons created by photoexcitation of PPV. PPV/ethyl-viologen composites were successfully prepared from PPV-precursor and ethyl-viologen because both compounds could be soluble in polar solvents such as methanol, water etc. We observed dramatic decrease of photoluminescence efficiency in the PPV/ethyl-viologen composite film as compared with PPV film. This is attributed to photoinduced electron transfer in PPV/ethyl-viologen composites and the efficient ionization of the excitons was occurred in this composite film. Time-resolved photoluminescence of composite films was also studied to obtain the information of this photoinduced electron transfer dynamics.

UR - http://www.scopus.com/inward/record.url?scp=0032056822&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032056822&partnerID=8YFLogxK

U2 - 10.1080/10587259808044503

DO - 10.1080/10587259808044503

M3 - Conference article

VL - 316

SP - 257

EP - 260

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -