1193362-64-9Relevant academic research and scientific papers
Emission color tuning and deep blue dopant materials based on 1,6-bis(N-phenyl-p-(R)-phenylamino)pyrene
Wee, Kyung-Ryang,Ahn, Hyun-Chul,Son, Ho-Jin,Han, Won-Sik,Kim, Ju-Eun,Cho, DaeWon,Sang, Ook Kang
, p. 8472 - 8475 (2009)
(Graph Presented) Panchromatic 1,6-bis(N-phenyl-p-(R)-phenylamino)pyrenes, 2R, were obtained from Buchwald-Hartwig coupling reactions between N-phenyl-p-(R)-phenylamines and 1,6-dibromopyrene. The photophysical properties of 2R corresponded well to the electron-withdrawing and -donating nature of the diarylamine substituents, exhibiting a full color visible range between 454 and 620 nm. In particular, a deep blue 2CN showed a high radiative rate constant of 2.85 × 108 s-1 with high emission quantum efficiency of 79%. Further applications of 2CN as a blue dopant were attempted using multilayer organic light-emitting devices. A maximum efficiency of 3.98 cd/A with CIE coordinates of x = 0.14, y = 0.10 were obtained. 2009 American Chemical Society.
Highly efficient blue organic light-emitting diodes based on diarylamine-substituted pyrene derivatives
Cho, Seokwon,Hwang, Namhee,Lee, Song Eun,Kim, Young Kwan,Yoon, Seung Soo
, p. 1056 - 1060 (2019)
In this study, we designed and synthesized three blue fluorescence materials based on diarylaminesubstituted pyrene derivatives. Organic Light Emitting-Diodes devices using these materials were fabricated in the following sequence; ITO/2-TNATA (300 A)/NPB (200 A)/α,β-ADN: 10 wt% blue materials 1-3 (300 A)/DNAB (300 A)/Liq (20 A)/Al (1000 A). All devices showed highly efficient blue emissions. Particularly, a device using materials (3) shown highly efficient blue emission with luminous efficiency of 8.94 cd/A, power efficiency of 4.40 lm/W, external quantum efficiency of 6.62% at 20 mA/cm2, respectively, and the CIE coordinates of (0.16, 0.23) at 6.0 V.
