A triazole containing co-polymer for use as an electron transport material in multilayer LEDs

Alan W. Grice; Ali R. Tajbakhsh; Paul L. Burn; Donal D.C. Bradley

doi:10.1117/12.279327

A triazole containing co-polymer for use as an electron transport material in multilayer LEDs

Alan W. Grice, Ali R. Tajbakhsh, Paul L. Burn, Donal D.C. Bradley

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

We report investigations into a poly(1,20-(10,13-didecyl)distyrylbenzene-co-1,2-[4-(p-ethylphenyl)]triazole) (TRIDSB) electron transport material and its incorporation into single and multilayer LEDs. Multilayer devices have been investigated with poly(p-phenylenevinylene) (PPV) and poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene) as hole transport layers (HTLs). The incorporation of the polymer into an ITO/PPV/TRIDSB/Al LED facilitates electron injection into the hole transporting emissive layer and results in a ten fold increase in the external quantum efficiency for electroluminescence (EL) of the PPV layer from 0.008% to 0.08-0.1%. In an ITO/I-MEHPPV/TRIDSB/Al device the corresponding increase in the quantum efficiency for EL from the I-MEHPPV is fifty fold, from 0.002% to between 0.06-0.11%. The polymer has been shown to be thermally stable with no glass transition temperature or melting point detected within the range 25-250°C.

Original language	English (US)
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
DOIs	https://doi.org/10.1117/12.279327
State	Published - Dec 1 1997
Externally published	Yes

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title = "A triazole containing co-polymer for use as an electron transport material in multilayer LEDs",

abstract = "We report investigations into a poly(1,20-(10,13-didecyl)distyrylbenzene-co-1,2-[4-(p-ethylphenyl)]triazole) (TRIDSB) electron transport material and its incorporation into single and multilayer LEDs. Multilayer devices have been investigated with poly(p-phenylenevinylene) (PPV) and poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene) as hole transport layers (HTLs). The incorporation of the polymer into an ITO/PPV/TRIDSB/Al LED facilitates electron injection into the hole transporting emissive layer and results in a ten fold increase in the external quantum efficiency for electroluminescence (EL) of the PPV layer from 0.008% to 0.08-0.1%. In an ITO/I-MEHPPV/TRIDSB/Al device the corresponding increase in the quantum efficiency for EL from the I-MEHPPV is fifty fold, from 0.002% to between 0.06-0.11%. The polymer has been shown to be thermally stable with no glass transition temperature or melting point detected within the range 25-250°C.",

author = "Grice, {Alan W.} and Tajbakhsh, {Ali R.} and Burn, {Paul L.} and Bradley, {Donal D.C.}",

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year = "1997",

month = dec,

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doi = "10.1117/12.279327",

language = "English (US)",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

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AU - Grice, Alan W.

AU - Tajbakhsh, Ali R.

AU - Burn, Paul L.

AU - Bradley, Donal D.C.

N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27

PY - 1997/12/1

Y1 - 1997/12/1

N2 - We report investigations into a poly(1,20-(10,13-didecyl)distyrylbenzene-co-1,2-[4-(p-ethylphenyl)]triazole) (TRIDSB) electron transport material and its incorporation into single and multilayer LEDs. Multilayer devices have been investigated with poly(p-phenylenevinylene) (PPV) and poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene) as hole transport layers (HTLs). The incorporation of the polymer into an ITO/PPV/TRIDSB/Al LED facilitates electron injection into the hole transporting emissive layer and results in a ten fold increase in the external quantum efficiency for electroluminescence (EL) of the PPV layer from 0.008% to 0.08-0.1%. In an ITO/I-MEHPPV/TRIDSB/Al device the corresponding increase in the quantum efficiency for EL from the I-MEHPPV is fifty fold, from 0.002% to between 0.06-0.11%. The polymer has been shown to be thermally stable with no glass transition temperature or melting point detected within the range 25-250°C.

AB - We report investigations into a poly(1,20-(10,13-didecyl)distyrylbenzene-co-1,2-[4-(p-ethylphenyl)]triazole) (TRIDSB) electron transport material and its incorporation into single and multilayer LEDs. Multilayer devices have been investigated with poly(p-phenylenevinylene) (PPV) and poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene) as hole transport layers (HTLs). The incorporation of the polymer into an ITO/PPV/TRIDSB/Al LED facilitates electron injection into the hole transporting emissive layer and results in a ten fold increase in the external quantum efficiency for electroluminescence (EL) of the PPV layer from 0.008% to 0.08-0.1%. In an ITO/I-MEHPPV/TRIDSB/Al device the corresponding increase in the quantum efficiency for EL from the I-MEHPPV is fifty fold, from 0.002% to between 0.06-0.11%. The polymer has been shown to be thermally stable with no glass transition temperature or melting point detected within the range 25-250°C.

UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=929953

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U2 - 10.1117/12.279327

DO - 10.1117/12.279327

M3 - Conference contribution

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -

A triazole containing co-polymer for use as an electron transport material in multilayer LEDs

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