ELECTROLUMINESCENCE-DETECTED MAGNETIC-RESONANCE STUDY OF POLYPARAPHENYLENEVINYLENE (PPV)-BASED LIGHT-EMITTING-DIODES

L S  SWANSON; J  SHINAR; A R  BROWN; D D C  BRADLEY; R H  FRIEND; P L  BURN; A  KRAFT; A B  HOLMES

ELECTROLUMINESCENCE-DETECTED MAGNETIC-RESONANCE STUDY OF POLYPARAPHENYLENEVINYLENE (PPV)-BASED LIGHT-EMITTING-DIODES

L S SWANSON
, J SHINAR
, A R BROWN
, D D C BRADLEY
, R H FRIEND
, P L BURN
, A KRAFT
, A B HOLMES

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

Abstract

The strong electroluminescence (EL)-detected magnetic resonance of PPV-based light emitting diodes is compared to the conductivity (sigma)- and photoluminescence (PL)-detected resonances. It provides direct evidence that polaron-to-singlet exciton conversion is responsible for the EL. In contrast to the narrow PL-enhancing resonance assigned to polaron recombination, strong EL- and sigma-quenching resonances are attributed to the spin-dependent polaron-to-bipolaron decay. The half-field EL- and sigma-detected resonances of two distinct triplet excitons is believed to result from triplet-triplet fusion to singlets.

Original language	English
Pages (from-to)	15072-15077
Number of pages	6
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	46
Issue number	23
Publication status	Published - 15 Dec 1992

Cite this

@article{a9925d9c12fc43b29d0db2adf86b5624,

title = "ELECTROLUMINESCENCE-DETECTED MAGNETIC-RESONANCE STUDY OF POLYPARAPHENYLENEVINYLENE (PPV)-BASED LIGHT-EMITTING-DIODES",

abstract = "The strong electroluminescence (EL)-detected magnetic resonance of PPV-based light emitting diodes is compared to the conductivity (sigma)- and photoluminescence (PL)-detected resonances. It provides direct evidence that polaron-to-singlet exciton conversion is responsible for the EL. In contrast to the narrow PL-enhancing resonance assigned to polaron recombination, strong EL- and sigma-quenching resonances are attributed to the spin-dependent polaron-to-bipolaron decay. The half-field EL- and sigma-detected resonances of two distinct triplet excitons is believed to result from triplet-triplet fusion to singlets.",

author = "SWANSON, \{L S\} and J SHINAR and BROWN, \{A R\} and BRADLEY, \{D D C\} and FRIEND, \{R H\} and BURN, \{P L\} and A KRAFT and HOLMES, \{A B\}",

year = "1992",

month = dec,

day = "15",

language = "English",

volume = "46",

pages = "15072--15077",

journal = "Physical Review B: Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "23",

}

TY - JOUR

T1 - ELECTROLUMINESCENCE-DETECTED MAGNETIC-RESONANCE STUDY OF POLYPARAPHENYLENEVINYLENE (PPV)-BASED LIGHT-EMITTING-DIODES

AU - SWANSON, L S

AU - SHINAR, J

AU - BROWN, A R

AU - BRADLEY, D D C

AU - FRIEND, R H

AU - BURN, P L

AU - KRAFT, A

AU - HOLMES, A B

PY - 1992/12/15

Y1 - 1992/12/15

N2 - The strong electroluminescence (EL)-detected magnetic resonance of PPV-based light emitting diodes is compared to the conductivity (sigma)- and photoluminescence (PL)-detected resonances. It provides direct evidence that polaron-to-singlet exciton conversion is responsible for the EL. In contrast to the narrow PL-enhancing resonance assigned to polaron recombination, strong EL- and sigma-quenching resonances are attributed to the spin-dependent polaron-to-bipolaron decay. The half-field EL- and sigma-detected resonances of two distinct triplet excitons is believed to result from triplet-triplet fusion to singlets.

AB - The strong electroluminescence (EL)-detected magnetic resonance of PPV-based light emitting diodes is compared to the conductivity (sigma)- and photoluminescence (PL)-detected resonances. It provides direct evidence that polaron-to-singlet exciton conversion is responsible for the EL. In contrast to the narrow PL-enhancing resonance assigned to polaron recombination, strong EL- and sigma-quenching resonances are attributed to the spin-dependent polaron-to-bipolaron decay. The half-field EL- and sigma-detected resonances of two distinct triplet excitons is believed to result from triplet-triplet fusion to singlets.

M3 - Article

SN - 1098-0121

VL - 46

SP - 15072

EP - 15077

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 23

ER -

ELECTROLUMINESCENCE-DETECTED MAGNETIC-RESONANCE STUDY OF POLYPARAPHENYLENEVINYLENE (PPV)-BASED LIGHT-EMITTING-DIODES

Abstract

Fingerprint

Cite this