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Taylor and Francis Group, Journal of Organic Semiconductors, 1(3), p. 1-7

DOI: 10.1080/21606099.2015.1047473

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Deep-red electrophosphorescence from a platinum(II)–porphyrin complex copolymerised with polyfluorene for efficient energy transfer and triplet harvesting

Journal article published in 2015 by David M. E. Freeman, Giulia Tregnago, Silvia Araguas Rodriguez, Kealan J. Fallon ORCID, Franco Cacialli, Hugo Bronstein
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

A series of polyfluorene-based polymers with a range of weight percentages (w/w) of a platinum(II)-containing porphyrin, 5,15-dimesityl-10,20-diphenylporphyrinato platinum(II) (MPP(Pt)), were synthesised and incorporated into organic light-emitting diodes. All polymers showed emission predominantly in the red/NIR region with only those polymers with porphyrin w/w of less than 2% showing residual tails at wavelengths lower than 600?nm, indicating increased emission from the porphyrin as w/w increases. The 2% loading of MPP(Pt) gave the highest efficiency LED (0.48%) and light output (2630?mW/m2).