Steady state photoconductivity of a polymer blend

J. Y. Park; H. M. Le; G. T. Kim; H. Park; Y. W. Park; I. N. Kang; D. H. Hwang; H. K. Shim

doi:10.1016/s0379-6779(97)80220-2

Steady state photoconductivity of a polymer blend

J. Y. Park, H. M. Le, G. T. Kim, H. Park, Y. W. Park, I. N. Kang, D. H. Hwang, H. K. Shim

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

2 Citations (Scopus)

Abstract

The spectral responses of steady state photoconductivity of a polymer blend, poly[2-methoxy,5-(2′-ethyl-hexoxy)-1,4-phenylene vinylene] (MEH-PPV) and poly[1,3-propanedioxy-1,4-phenylene-1,2-ethenyllene-(2,5-bis(trimethylsilyl)-1, 4-phenylene)-1,2-etheny lene-1,4-phenylene] (called B-polymer) are investigated. Two peaks of photocurrent(PC) at 2.16 eV and 3.01 eV are observed under continuous illumination. The peak at 3.01 eV is rather broad and has a strong polarity dependence on the applied voltage, which could be due to the rectified microjunction formation in the polymer blend. The incident beam intensity dependences of the two peaks in PC are I_pc ∝ I^α with α = 1.05. It indicates that the monomolecular recombination kinetics is important in this polymer blend. The observed spectral response of PC is discussed in comparison with the optical absorption as well as the photoluminescence spectra reported earlier in the same polymer blend.

Original language	English
Pages (from-to)	1239-1240
Number of pages	2
Journal	Synthetic Metals
Volume	85
Issue number	1-3
DOIs	https://doi.org/10.1016/s0379-6779(97)80220-2
Publication status	Published - 1997 Mar 15
Externally published	Yes

Keywords

Electroluminescence
National center for natural science and technology
Photoconductivity
Poly(phenylene vinylene) and derivatives

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Steady state photoconductivity of a polymer blend",

abstract = "The spectral responses of steady state photoconductivity of a polymer blend, poly[2-methoxy,5-(2′-ethyl-hexoxy)-1,4-phenylene vinylene] (MEH-PPV) and poly[1,3-propanedioxy-1,4-phenylene-1,2-ethenyllene-(2,5-bis(trimethylsilyl)-1, 4-phenylene)-1,2-etheny lene-1,4-phenylene] (called B-polymer) are investigated. Two peaks of photocurrent(PC) at 2.16 eV and 3.01 eV are observed under continuous illumination. The peak at 3.01 eV is rather broad and has a strong polarity dependence on the applied voltage, which could be due to the rectified microjunction formation in the polymer blend. The incident beam intensity dependences of the two peaks in PC are Ipc ∝ Iα with α = 1.05. It indicates that the monomolecular recombination kinetics is important in this polymer blend. The observed spectral response of PC is discussed in comparison with the optical absorption as well as the photoluminescence spectra reported earlier in the same polymer blend.",

keywords = "Electroluminescence, National center for natural science and technology, Photoconductivity, Poly(phenylene vinylene) and derivatives",

author = "Park, {J. Y.} and Le, {H. M.} and Kim, {G. T.} and H. Park and Park, {Y. W.} and Kang, {I. N.} and Hwang, {D. H.} and Shim, {H. K.}",

year = "1997",

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doi = "10.1016/s0379-6779(97)80220-2",

language = "English",

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TY - JOUR

T1 - Steady state photoconductivity of a polymer blend

AU - Park, J. Y.

AU - Le, H. M.

AU - Kim, G. T.

AU - Park, H.

AU - Park, Y. W.

AU - Kang, I. N.

AU - Hwang, D. H.

AU - Shim, H. K.

PY - 1997/3/15

Y1 - 1997/3/15

N2 - The spectral responses of steady state photoconductivity of a polymer blend, poly[2-methoxy,5-(2′-ethyl-hexoxy)-1,4-phenylene vinylene] (MEH-PPV) and poly[1,3-propanedioxy-1,4-phenylene-1,2-ethenyllene-(2,5-bis(trimethylsilyl)-1, 4-phenylene)-1,2-etheny lene-1,4-phenylene] (called B-polymer) are investigated. Two peaks of photocurrent(PC) at 2.16 eV and 3.01 eV are observed under continuous illumination. The peak at 3.01 eV is rather broad and has a strong polarity dependence on the applied voltage, which could be due to the rectified microjunction formation in the polymer blend. The incident beam intensity dependences of the two peaks in PC are Ipc ∝ Iα with α = 1.05. It indicates that the monomolecular recombination kinetics is important in this polymer blend. The observed spectral response of PC is discussed in comparison with the optical absorption as well as the photoluminescence spectra reported earlier in the same polymer blend.

AB - The spectral responses of steady state photoconductivity of a polymer blend, poly[2-methoxy,5-(2′-ethyl-hexoxy)-1,4-phenylene vinylene] (MEH-PPV) and poly[1,3-propanedioxy-1,4-phenylene-1,2-ethenyllene-(2,5-bis(trimethylsilyl)-1, 4-phenylene)-1,2-etheny lene-1,4-phenylene] (called B-polymer) are investigated. Two peaks of photocurrent(PC) at 2.16 eV and 3.01 eV are observed under continuous illumination. The peak at 3.01 eV is rather broad and has a strong polarity dependence on the applied voltage, which could be due to the rectified microjunction formation in the polymer blend. The incident beam intensity dependences of the two peaks in PC are Ipc ∝ Iα with α = 1.05. It indicates that the monomolecular recombination kinetics is important in this polymer blend. The observed spectral response of PC is discussed in comparison with the optical absorption as well as the photoluminescence spectra reported earlier in the same polymer blend.

KW - Electroluminescence

KW - National center for natural science and technology

KW - Photoconductivity

KW - Poly(phenylene vinylene) and derivatives

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JO - Synthetic Metals

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SN - 0379-6779

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Steady state photoconductivity of a polymer blend

Abstract

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