DOI: 10.1143/jjap.39.1151. Preparation and Characterization of High Efficient Blue-Light Emitting Materials with a Secondary Ligand for Organic Electroluminescence

Preparation and Characterization of High Efficient Blue-Light Emitting Materials with a Secondary Ligand for Organic Electroluminescence

10.1143/jjap.39.1151

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

In this paper, a blue-light emitting material, bis(2-methyl-quinolinolato)(phenolato) aluminum(III) (Alq2 ′OPh), was synthesized. Organic electroluminescent (EL) devices have been fabricated with the homemade organometallic compound as the emitting layer and N,N′-diphenyl-N,N′-di(m-tolyl)benzidinev (TPD) as the hole transport layer, blue light emission with a high efficiency was obtained. Compared with tris (8-hydroxyquinoline) aluminum (Alq3), the presence of the phenolato ligand shifts the light emission to the blue region of the spectrum. The maximum wavelength of the EL is at around 495 nm and the brightness is up to 4000 cd/m2 with the maximum efficiency up to 1.4 lm/W. Two new compounds have also been prepared in order to investigate the effect of the secondary ligand. The comparison study indicates that the organometallic compound with a secondary ligand, not only the sterical effect but also some other effect would be responsible for the change of the emission wavelength.

Bibliography

Qiu, Y., Shao, Y., Zhang, D., & Hong, X. (2000). Preparation and Characterization of High Efficient Blue-Light Emitting Materials with a Secondary Ligand for Organic Electroluminescence. Japanese Journal of Applied Physics, 39(3R), 1151.

Authors 4

Yong Qiu (first)
Yan Shao (additional)
Deqiang Zhang (additional)
Xiaoyin Hong (additional)

References 13 Referenced 35

10.1063/1.98799 / Appl. Phys. Lett. (1987)
10.1063/1.118782 / Appl. Phys. Lett. (1997)
10.1063/1.120330 / Appl. Phys. Lett. (1997)
10.1039/a902800e / J. Mater. Chem. (1999)
{'key': ''}
10.1117/12.151167 / Proc. SPIE (1993)
10.1143/JJAP.35.L1339 / Jpn. J. Appl. Phys. (1996)
10.1039/a803308k / J. Mater. Chem. (1998)
10.1021/ac60269a023 / Anal. Chem. (1968)
10.1021/ja00704a015 / J. Am. Chem. Soc. (1970)
{'key': ''}
10.1109/16.605453 / IEEE Trans. Electron Devices (1997)
10.1126/science.276.5321.2009 / Science (1997)

Dates

Type	When
Created	22 years, 11 months ago (Oct. 1, 2002, 7:08 p.m.)
Deposited	2 years, 8 months ago (Dec. 14, 2022, 12:31 p.m.)
Indexed	6 months, 1 week ago (Feb. 21, 2025, 5:34 a.m.)
Issued	25 years, 6 months ago (March 1, 2000)
Published	25 years, 6 months ago (March 1, 2000)
Published Print	25 years, 6 months ago (March 1, 2000)

Funders 0

None

BibTeX

@article{Qiu_2000, title={Preparation and Characterization of High Efficient Blue-Light Emitting Materials with a Secondary Ligand for Organic Electroluminescence}, volume={39}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.39.1151}, DOI={10.1143/jjap.39.1151}, number={3R}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Qiu, Yong and Shao, Yan and Zhang, Deqiang and Hong, Xiaoyin}, year={2000}, month=mar, pages={1151} }

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