Home
Resources
Publications
Efficient Near-Infrared Polymer and Organic Light-Emitting Diodes Based on Electrophosphorescence From (tetraphenyltetranaphtho[2,3]porphyrin)platinum(II)

Efficient Near-Infrared Polymer and Organic Light-Emitting Diodes Based on Electrophosphorescence From (tetraphenyltetranaphtho[2,3]porphyrin)platinum(II)

Jonathan R Sommer, Richard T Farley, Kenneth R Graham, Yixing Yang, John R Reynolds, Jiangeng Xue, Kirk S Schanze

ACS Appl Mater Interfaces. 2009 Feb;1(2):274-8.

PMID: 20353214

Abstract:

The new metalloporphyrin Pt(tptnp), where tptnp = tetraphenyltetranaphtho[2,3]porphyrin, has been prepared and subjected to photophysical and electrooptical device studies. In degassed toluene solution at room temperature Pt(tptnp) features efficient phosphorescence emission with lambda(max) 883 nm with a quantum efficiency of 0.22. The complex has been used as the active phosphor in polymer and organic light-emitting diodes. Polymer light-emitting diodes based on a spin-coated emissive layer consisting of a blend of Pt(tptnp) doped in poly(9-vinylcarbazole) and 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole exhibit near-IR emission with lambda(max) 896 nm, with a maximum external quantum efficiency (EQE) of 0.4% and a maximum radiant emittance of 100 muW/cm(2). Organic light-emitting diodes prepared via vapor deposition of all layers and that feature an optimized multilayer hole injection and electron blocking layer heterostructure with an emissive layer consisting of 4,4'-bis(carbazol-9-yl)biphenyl (CBP) doped with Pt(tptnp) exhibit a maximum EQE of 3.8% and a maximum radiant emittance of 1.8 mW/cm(2). The polymer and organic light-emitting diodes characterized in this study exhibit record high efficiency for devices that emit in the near-IR at lambda >800 nm.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP15082287	2-(4-tert-Butylphenyl)-5-(4-biphenylyl)-1,3,4-oxadiazole		15082-28-7	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: