Novel concept organic semiconductors useful for organic light emitting diodes

Chihaya Adachi

Novel concept organic semiconductors useful for organic light emitting diodes

Applied Chemistry

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

Abstract

We report a material having a very small energy gap between its singlet and triplet excited states, ΔE_1-3, that realizes efficient up-conversion of triplet excitons into a singlet state, leading to efficient thermally activated delayed fluorescence (TADF). Our molecule, 2-biphenyl-4,6-bis(12-phenylindolo[2,3-a]carbazol-11-yl)-1,3,5-triazine (PIC-TRZ), broke the large energy gap restriction, providing a quite small ΔE_1-3 of 0.11 eV while maintaining a high fluorescent radiative decay rate (k_r∼10⁷). The intense TADF provides a novel pathway for high efficiency electroluminescence.

Original language	English
Title of host publication	Society for Information Display - 18th International Display Workshops 2011, IDW'11
Pages	791-794
Number of pages	4
Volume	2
Publication status	Published - 2011
Event	18th International Display Workshops 2011, IDW 2011 - Nagoya, Japan Duration: Dec 7 2011 → Dec 9 2011

Other

Other	18th International Display Workshops 2011, IDW 2011
Country/Territory	Japan
City	Nagoya
Period	12/7/11 → 12/9/11

All Science Journal Classification (ASJC) codes

Computer Vision and Pattern Recognition
Human-Computer Interaction
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Radiology Nuclear Medicine and imaging

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

@inproceedings{1004a6ede7f243288384549178b69359,

title = "Novel concept organic semiconductors useful for organic light emitting diodes",

abstract = "We report a material having a very small energy gap between its singlet and triplet excited states, ΔE1-3, that realizes efficient up-conversion of triplet excitons into a singlet state, leading to efficient thermally activated delayed fluorescence (TADF). Our molecule, 2-biphenyl-4,6-bis(12-phenylindolo[2,3-a]carbazol-11-yl)-1,3,5-triazine (PIC-TRZ), broke the large energy gap restriction, providing a quite small ΔE1-3 of 0.11 eV while maintaining a high fluorescent radiative decay rate (kr∼107). The intense TADF provides a novel pathway for high efficiency electroluminescence.",

author = "Chihaya Adachi",

year = "2011",

language = "English",

isbn = "9781622761906",

volume = "2",

pages = "791--794",

booktitle = "Society for Information Display - 18th International Display Workshops 2011, IDW'11",

note = "18th International Display Workshops 2011, IDW 2011 ; Conference date: 07-12-2011 Through 09-12-2011",

}

TY - GEN

T1 - Novel concept organic semiconductors useful for organic light emitting diodes

AU - Adachi, Chihaya

PY - 2011

Y1 - 2011

N2 - We report a material having a very small energy gap between its singlet and triplet excited states, ΔE1-3, that realizes efficient up-conversion of triplet excitons into a singlet state, leading to efficient thermally activated delayed fluorescence (TADF). Our molecule, 2-biphenyl-4,6-bis(12-phenylindolo[2,3-a]carbazol-11-yl)-1,3,5-triazine (PIC-TRZ), broke the large energy gap restriction, providing a quite small ΔE1-3 of 0.11 eV while maintaining a high fluorescent radiative decay rate (kr∼107). The intense TADF provides a novel pathway for high efficiency electroluminescence.

AB - We report a material having a very small energy gap between its singlet and triplet excited states, ΔE1-3, that realizes efficient up-conversion of triplet excitons into a singlet state, leading to efficient thermally activated delayed fluorescence (TADF). Our molecule, 2-biphenyl-4,6-bis(12-phenylindolo[2,3-a]carbazol-11-yl)-1,3,5-triazine (PIC-TRZ), broke the large energy gap restriction, providing a quite small ΔE1-3 of 0.11 eV while maintaining a high fluorescent radiative decay rate (kr∼107). The intense TADF provides a novel pathway for high efficiency electroluminescence.

UR - http://www.scopus.com/inward/record.url?scp=84870719084&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870719084&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84870719084

SN - 9781622761906

VL - 2

SP - 791

EP - 794

BT - Society for Information Display - 18th International Display Workshops 2011, IDW'11

T2 - 18th International Display Workshops 2011, IDW 2011

Y2 - 7 December 2011 through 9 December 2011

ER -

Novel concept organic semiconductors useful for organic light emitting diodes

Abstract

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All Science Journal Classification (ASJC) codes

UN SDGs

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