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Organic, polymer, and organic/inorganic hybrid light-emitting devices based on phosphorescent fluorinated platinum(II) porphyrin
Author(s): Hai-Feng Xiang; Chuan-Nan Li; Sze Chit Yu; Chi-Ming Che; P. T. Lai; Po Ching Chui
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Paper Abstract

Efficient and highly saturated red organic, polymer and white organic/inorganic hybrid light-emitting devices (OLEDs, PLEDs and OIHLEDs) employing platinum(II) meso-tetrakis(pentafluorophenyl) porphyrin (PtF20TPP) are reported. The presence of fluorine atoms on the periphery of porphyrin ring suppresses the self-quenching behavior and improves the electron mobility, solubility, and stability of PtF20TPP. Both the PLEDs and OLEDs give a red emission with a peak maximum at 650 nm (full width at half maximum = 26 nm) and a shoulder at 705 nm. The maximum external quantum efficiency (hext), luminous efficiency (hL), and brightness of the 2.1 wt% PtF20TPP-doped PLED are 3.2%, 1.1 cd/A, 350 cd/m2 respectively; while those for the 4.0 wt% PtF20TPP-doped OLEDs are 5.1%, 1.5 cd/A, 890 cd/m2. The efficiency and luminous power efficiency (hP) of luminescence conversion of white OIHLEDs based on near-ultraviolet (n-UV) light GaN-LEDs as light source, tris-(8-hydroxyquinolato) aluminum (Alq3) as green emitter, and PtF20TPP as red emitter are 3.3% and 10 lm/W, respectively.

Paper Details

Date Published: 10 November 2004
PDF: 8 pages
Proc. SPIE 5519, Organic Light-Emitting Materials and Devices VIII, (10 November 2004); doi: 10.1117/12.551316
Show Author Affiliations
Hai-Feng Xiang, Univ. of Hong Kong (Hong Kong China)
Chuan-Nan Li, Univ. of Hong Kong (Hong Kong China)
Sze Chit Yu, Univ. of Hong Kong (Hong Kong China)
Chi-Ming Che, Univ. of Hong Kong (Hong Kong China)
P. T. Lai, Univ. of Hong Kong (Hong Kong China)
Po Ching Chui, Univ. of Hong Kong (Hong Kong China)

Published in SPIE Proceedings Vol. 5519:
Organic Light-Emitting Materials and Devices VIII
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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