Silane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodes

Jae Wook Kang, Deug Sang Lee, Hyung Dol Park, Young Seo Park, Ji Whan Kim, Won Ik Jeong, Kyung Mo Yoo, Kyoungmoon Go, Sehoon Kim, Jang Joo Kim

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

One of the important factors for high efficiency phosphorescent organic light-emitting devices is to confine triplet excitons within the emitting layer. We synthesized and characterized a new hole blocking material containing silane and triazine moieties, 2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl) -1,3,5-triazine (DTBT). Electrophosphorescent devices fabricated using the material as the hole-blocking layer and N,N′-dicarbazolyl-4,4′- biphenyl (CBP) doped with fac-tris(2-phenylpyridine)iridium [Ir(ppy) 3] as the emitting layer showed a maximum external quantum efficiency (ηext) of 17.5% with a maximum power efficiency (ηp) of 47.8 lm W-1, which are much higher than those of devices using bathcuproine (BCP) (ηext = 14.5%, ηp = 40.0 lm W-1) and 4-biphenyloxolate aluminium(iii) bis(2-methyl-8-quinolinato)-4-phenylphenolate (BAlq) (ηext = 8.1%, ηp = 14.2 lm W-1) as hole-blocking layers.

Original languageEnglish
Pages (from-to)3714-3719
Number of pages6
JournalJournal of Materials Chemistry
Volume17
Issue number35
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes

Fingerprint

Silanes
Triazines
Organic light emitting diodes (OLED)
Excitons
Iridium
Quantum efficiency
Aluminum
diphenyl
LDS 751

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

Silane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodes. / Kang, Jae Wook; Lee, Deug Sang; Park, Hyung Dol; Park, Young Seo; Kim, Ji Whan; Jeong, Won Ik; Yoo, Kyung Mo; Go, Kyoungmoon; Kim, Sehoon; Kim, Jang Joo.

In: Journal of Materials Chemistry, Vol. 17, No. 35, 01.01.2007, p. 3714-3719.

Research output: Contribution to journalArticle

Kang, Jae Wook ; Lee, Deug Sang ; Park, Hyung Dol ; Park, Young Seo ; Kim, Ji Whan ; Jeong, Won Ik ; Yoo, Kyung Mo ; Go, Kyoungmoon ; Kim, Sehoon ; Kim, Jang Joo. / Silane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodes. In: Journal of Materials Chemistry. 2007 ; Vol. 17, No. 35. pp. 3714-3719.
@article{a734a0b6dbd94ddcb8a8ed1715e66f24,
title = "Silane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodes",
abstract = "One of the important factors for high efficiency phosphorescent organic light-emitting devices is to confine triplet excitons within the emitting layer. We synthesized and characterized a new hole blocking material containing silane and triazine moieties, 2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl) -1,3,5-triazine (DTBT). Electrophosphorescent devices fabricated using the material as the hole-blocking layer and N,N′-dicarbazolyl-4,4′- biphenyl (CBP) doped with fac-tris(2-phenylpyridine)iridium [Ir(ppy) 3] as the emitting layer showed a maximum external quantum efficiency (ηext) of 17.5{\%} with a maximum power efficiency (ηp) of 47.8 lm W-1, which are much higher than those of devices using bathcuproine (BCP) (ηext = 14.5{\%}, ηp = 40.0 lm W-1) and 4-biphenyloxolate aluminium(iii) bis(2-methyl-8-quinolinato)-4-phenylphenolate (BAlq) (ηext = 8.1{\%}, ηp = 14.2 lm W-1) as hole-blocking layers.",
author = "Kang, {Jae Wook} and Lee, {Deug Sang} and Park, {Hyung Dol} and Park, {Young Seo} and Kim, {Ji Whan} and Jeong, {Won Ik} and Yoo, {Kyung Mo} and Kyoungmoon Go and Sehoon Kim and Kim, {Jang Joo}",
year = "2007",
month = "1",
day = "1",
doi = "10.1039/b705741e",
language = "English",
volume = "17",
pages = "3714--3719",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "35",

}

TY - JOUR

T1 - Silane- and triazine-containing hole and exciton blocking material for high-efficiency phosphorescent organic light emitting diodes

AU - Kang, Jae Wook

AU - Lee, Deug Sang

AU - Park, Hyung Dol

AU - Park, Young Seo

AU - Kim, Ji Whan

AU - Jeong, Won Ik

AU - Yoo, Kyung Mo

AU - Go, Kyoungmoon

AU - Kim, Sehoon

AU - Kim, Jang Joo

PY - 2007/1/1

Y1 - 2007/1/1

N2 - One of the important factors for high efficiency phosphorescent organic light-emitting devices is to confine triplet excitons within the emitting layer. We synthesized and characterized a new hole blocking material containing silane and triazine moieties, 2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl) -1,3,5-triazine (DTBT). Electrophosphorescent devices fabricated using the material as the hole-blocking layer and N,N′-dicarbazolyl-4,4′- biphenyl (CBP) doped with fac-tris(2-phenylpyridine)iridium [Ir(ppy) 3] as the emitting layer showed a maximum external quantum efficiency (ηext) of 17.5% with a maximum power efficiency (ηp) of 47.8 lm W-1, which are much higher than those of devices using bathcuproine (BCP) (ηext = 14.5%, ηp = 40.0 lm W-1) and 4-biphenyloxolate aluminium(iii) bis(2-methyl-8-quinolinato)-4-phenylphenolate (BAlq) (ηext = 8.1%, ηp = 14.2 lm W-1) as hole-blocking layers.

AB - One of the important factors for high efficiency phosphorescent organic light-emitting devices is to confine triplet excitons within the emitting layer. We synthesized and characterized a new hole blocking material containing silane and triazine moieties, 2,4-diphenyl-6-(4′-triphenylsilanyl-biphenyl-4-yl) -1,3,5-triazine (DTBT). Electrophosphorescent devices fabricated using the material as the hole-blocking layer and N,N′-dicarbazolyl-4,4′- biphenyl (CBP) doped with fac-tris(2-phenylpyridine)iridium [Ir(ppy) 3] as the emitting layer showed a maximum external quantum efficiency (ηext) of 17.5% with a maximum power efficiency (ηp) of 47.8 lm W-1, which are much higher than those of devices using bathcuproine (BCP) (ηext = 14.5%, ηp = 40.0 lm W-1) and 4-biphenyloxolate aluminium(iii) bis(2-methyl-8-quinolinato)-4-phenylphenolate (BAlq) (ηext = 8.1%, ηp = 14.2 lm W-1) as hole-blocking layers.

UR - http://www.scopus.com/inward/record.url?scp=34548211300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548211300&partnerID=8YFLogxK

U2 - 10.1039/b705741e

DO - 10.1039/b705741e

M3 - Article

AN - SCOPUS:34548211300

VL - 17

SP - 3714

EP - 3719

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 35

ER -