Abstract
A series of bipolar host materials containing dibenzo[b,d]thiophene (DBT) or dibenzo[b,d]thiophene 5,5-dioxide core were successfully synthesized, and their physical, photophysical, and electrochemical properties were investigated. The three host materials showed well-localized electron distribution at the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) states, as evidenced by theoretical calculations. Triplet energies of the new host materials are higher than 2.6 eV, and the blend film with bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrpic) as a blue phosphorescent dopant showed highly efficient energy transfer between the host material and dopant.
| Original language | English |
|---|---|
| Pages (from-to) | 31-39 |
| Number of pages | 9 |
| Journal | Molecular Crystals and Liquid Crystals |
| Volume | 621 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 Nov 2 |
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Keywords
- bipolar host material
- energy transfer
- phosphorescence
- triplet energy
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Science(all)
Cite this
Synthesis and Characterization of New Dibenzothiophene-based Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes. / Kim, Hyung Jong; Choe, Ik Rang; Hong, Tae Ryang; Kang, Ju Sik; Um, Hyun Ah; Cho, Min Ju; Choi, Dong Hoon.
In: Molecular Crystals and Liquid Crystals, Vol. 621, No. 1, 02.11.2015, p. 31-39.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis and Characterization of New Dibenzothiophene-based Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes
AU - Kim, Hyung Jong
AU - Choe, Ik Rang
AU - Hong, Tae Ryang
AU - Kang, Ju Sik
AU - Um, Hyun Ah
AU - Cho, Min Ju
AU - Choi, Dong Hoon
PY - 2015/11/2
Y1 - 2015/11/2
N2 - A series of bipolar host materials containing dibenzo[b,d]thiophene (DBT) or dibenzo[b,d]thiophene 5,5-dioxide core were successfully synthesized, and their physical, photophysical, and electrochemical properties were investigated. The three host materials showed well-localized electron distribution at the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) states, as evidenced by theoretical calculations. Triplet energies of the new host materials are higher than 2.6 eV, and the blend film with bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrpic) as a blue phosphorescent dopant showed highly efficient energy transfer between the host material and dopant.
AB - A series of bipolar host materials containing dibenzo[b,d]thiophene (DBT) or dibenzo[b,d]thiophene 5,5-dioxide core were successfully synthesized, and their physical, photophysical, and electrochemical properties were investigated. The three host materials showed well-localized electron distribution at the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) states, as evidenced by theoretical calculations. Triplet energies of the new host materials are higher than 2.6 eV, and the blend film with bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrpic) as a blue phosphorescent dopant showed highly efficient energy transfer between the host material and dopant.
KW - bipolar host material
KW - energy transfer
KW - phosphorescence
KW - triplet energy
UR - http://www.scopus.com/inward/record.url?scp=84950289665&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84950289665&partnerID=8YFLogxK
U2 - 10.1080/15421406.2015.1095835
DO - 10.1080/15421406.2015.1095835
M3 - Article
AN - SCOPUS:84950289665
VL - 621
SP - 31
EP - 39
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
IS - 1
ER -