Effect of CoFe magnetic nanoparticles on the hole transport in poly(2-methoxy, 5-(2-ethylhexiloxy) 1,4-phenylenevinylene)

Pankaj Kumar; Hemant Kumar; Suresh Chand; S. C. Jain; Vikram Kumar; Vinod Kumar; R. P. Pant; R. P. Tandon

doi:10.1088/0022-3727/41/18/185104

Effect of CoFe magnetic nanoparticles on the hole transport in poly(2-methoxy, 5-(2-ethylhexiloxy) 1,4-phenylenevinylene)

Pankaj Kumar, Hemant Kumar, Suresh Chand, S. C. Jain, Vikram Kumar, Vinod Kumar, R. P. Pant, R. P. Tandon

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

9 Citations (Scopus)

Abstract

The effect of doping of CoFe magnetic nanoparticles (MNPs) on the hole transport in poly(2-methoxy,5-(2-ethylhexyloxy)-1,4-phenylenevinylene)(MEH-PPV) thin films has been investigated in the temperature range 280-120 K. Hole transport in MEH-PPV is found to be governed by space-charge-limited-conduction (SCLC) with exponential distribution of traps in energy space. Doping of CoFe MNPs in MEH-PPV reduces the hole mobility from 1 × 10^-5 to 6 × 10^-6 cm² V^-1 s^-1 by introducing new trap sites causing their net density increase from 1 × 10¹⁸ to 2.1 × 10¹⁸ cm^-3, which is likely to result in balanced injection and efficient recombination of charge carriers to improve the performance of polymer light emitting diodes.

Original language	English
Article number	185104
Journal	Journal Physics D: Applied Physics
Volume	41
Issue number	18
DOIs	https://doi.org/10.1088/0022-3727/41/18/185104
Publication status	Published - 21 Sept 2008
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

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10.1088/0022-3727/41/18/185104

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title = "Effect of CoFe magnetic nanoparticles on the hole transport in poly(2-methoxy, 5-(2-ethylhexiloxy) 1,4-phenylenevinylene)",

abstract = "The effect of doping of CoFe magnetic nanoparticles (MNPs) on the hole transport in poly(2-methoxy,5-(2-ethylhexyloxy)-1,4-phenylenevinylene)(MEH-PPV) thin films has been investigated in the temperature range 280-120 K. Hole transport in MEH-PPV is found to be governed by space-charge-limited-conduction (SCLC) with exponential distribution of traps in energy space. Doping of CoFe MNPs in MEH-PPV reduces the hole mobility from 1 × 10-5 to 6 × 10-6 cm2 V-1 s-1 by introducing new trap sites causing their net density increase from 1 × 1018 to 2.1 × 1018 cm-3, which is likely to result in balanced injection and efficient recombination of charge carriers to improve the performance of polymer light emitting diodes.",

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AU - Kumar, Pankaj

AU - Kumar, Hemant

AU - Chand, Suresh

AU - Jain, S. C.

AU - Kumar, Vikram

AU - Kumar, Vinod

AU - Pant, R. P.

AU - Tandon, R. P.

PY - 2008/9/21

Y1 - 2008/9/21

N2 - The effect of doping of CoFe magnetic nanoparticles (MNPs) on the hole transport in poly(2-methoxy,5-(2-ethylhexyloxy)-1,4-phenylenevinylene)(MEH-PPV) thin films has been investigated in the temperature range 280-120 K. Hole transport in MEH-PPV is found to be governed by space-charge-limited-conduction (SCLC) with exponential distribution of traps in energy space. Doping of CoFe MNPs in MEH-PPV reduces the hole mobility from 1 × 10-5 to 6 × 10-6 cm2 V-1 s-1 by introducing new trap sites causing their net density increase from 1 × 1018 to 2.1 × 1018 cm-3, which is likely to result in balanced injection and efficient recombination of charge carriers to improve the performance of polymer light emitting diodes.

AB - The effect of doping of CoFe magnetic nanoparticles (MNPs) on the hole transport in poly(2-methoxy,5-(2-ethylhexyloxy)-1,4-phenylenevinylene)(MEH-PPV) thin films has been investigated in the temperature range 280-120 K. Hole transport in MEH-PPV is found to be governed by space-charge-limited-conduction (SCLC) with exponential distribution of traps in energy space. Doping of CoFe MNPs in MEH-PPV reduces the hole mobility from 1 × 10-5 to 6 × 10-6 cm2 V-1 s-1 by introducing new trap sites causing their net density increase from 1 × 1018 to 2.1 × 1018 cm-3, which is likely to result in balanced injection and efficient recombination of charge carriers to improve the performance of polymer light emitting diodes.

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Effect of CoFe magnetic nanoparticles on the hole transport in poly(2-methoxy, 5-(2-ethylhexiloxy) 1,4-phenylenevinylene)

Abstract

ASJC Scopus subject areas

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