Fluorescence spectroscopic characterization of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine; lead structure of new red-emitting EL material

Toshiaki Koga; Akiara Takase; Seiji Yasuda; Shoji Yamashita; Hideki Gorohmaru; Thies Thiemann; Shuntaro Mataka; Kazufumi Takahashi

doi:10.1016/S0009-2614(02)00147-1

Fluorescence spectroscopic characterization of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine; lead structure of new red-emitting EL material

Toshiaki Koga
, Akiara Takase
, Seiji Yasuda
, Shoji Yamashita
, Hideki Gorohmaru
, Thies Thiemann
, Shuntaro Mataka
, Kazufumi Takahashi

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

7 Citations (Scopus)

Abstract

The spectroscopic parameters of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine (DTOP) were determined which was designed as a red-emitting dye for the electroluminescent (EL) device. The main optical transition of DTOP is attributable to ¹L_a, and therefore, the fluorescence maximum shifted to the red side to reach to 630 nm according to the solvents. Although the non-radiative transition rate was enhanced, when the fluorescence maximum shifts to the longer than 610 nm, DTOP maintains the higher radiation transition probability.

Original language	English
Pages (from-to)	173-178
Number of pages	6
Journal	Chemical Physics Letters
Volume	354
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(02)00147-1
Publication status	Published - Mar 5 2002
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(02)00147-1

Cite this

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title = "Fluorescence spectroscopic characterization of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine; lead structure of new red-emitting EL material",

abstract = "The spectroscopic parameters of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine (DTOP) were determined which was designed as a red-emitting dye for the electroluminescent (EL) device. The main optical transition of DTOP is attributable to 1La, and therefore, the fluorescence maximum shifted to the red side to reach to 630 nm according to the solvents. Although the non-radiative transition rate was enhanced, when the fluorescence maximum shifts to the longer than 610 nm, DTOP maintains the higher radiation transition probability.",

author = "Toshiaki Koga and Akiara Takase and Seiji Yasuda and Shoji Yamashita and Hideki Gorohmaru and Thies Thiemann and Shuntaro Mataka and Kazufumi Takahashi",

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doi = "10.1016/S0009-2614(02)00147-1",

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T1 - Fluorescence spectroscopic characterization of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine; lead structure of new red-emitting EL material

AU - Koga, Toshiaki

AU - Takase, Akiara

AU - Yasuda, Seiji

AU - Yamashita, Shoji

AU - Gorohmaru, Hideki

AU - Thiemann, Thies

AU - Mataka, Shuntaro

AU - Takahashi, Kazufumi

PY - 2002/3/5

Y1 - 2002/3/5

N2 - The spectroscopic parameters of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine (DTOP) were determined which was designed as a red-emitting dye for the electroluminescent (EL) device. The main optical transition of DTOP is attributable to 1La, and therefore, the fluorescence maximum shifted to the red side to reach to 630 nm according to the solvents. Although the non-radiative transition rate was enhanced, when the fluorescence maximum shifts to the longer than 610 nm, DTOP maintains the higher radiation transition probability.

AB - The spectroscopic parameters of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine (DTOP) were determined which was designed as a red-emitting dye for the electroluminescent (EL) device. The main optical transition of DTOP is attributable to 1La, and therefore, the fluorescence maximum shifted to the red side to reach to 630 nm according to the solvents. Although the non-radiative transition rate was enhanced, when the fluorescence maximum shifts to the longer than 610 nm, DTOP maintains the higher radiation transition probability.

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ER -

Fluorescence spectroscopic characterization of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine; lead structure of new red-emitting EL material

Abstract

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