Journal article

Self-assembled porphyrin microrods and observation of structure-induced iridescence

Cicero Martelli, John Canning, Tony Khoury, Nina Skivesen, Martin Kristensen, George Huyang, Paul Jensen, Chiara Neto, Tze Jing Sum, Mads Bruun Hovgaard, Brant C Gibson, Maxwell J Crossley

JOURNAL OF MATERIALS CHEMISTRY | ROYAL SOC CHEMISTRY | Published : 2010

Abstract

Self-assembled microrods {based on 5-nitro-10,15,20-trialkylporphyrins [(CnH2n+1)3-NO2P]} and microplates {based on 5,10,15,20-tetraheptylporphyrin [(C7H15) 4-P]} are fabricated and characterised using optical microscopy, atomic force microscopy (AFM), and scanning electron microscopy (SEM). The length of the alkyl chains and the deposition surface are found to influence the optical properties and microrod self-assembly. When the deposition surface is silica (α-quartz), 5-nitro-trialkylporphyrins, (C5H 11)3-NO2P, (C7H15) 3-NO2P and (C11H23) 3-NO2P all form microrods of 0.7-0.8 micron diameter; the average length of the microrods varies from 170 microns for (C5H 11)3-NO2P to about 11 microns ..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council (ARC)


Awarded by DIISR-ISL


Funding Acknowledgements

C. Martelli acknowledges travel funding from the Australian Research Council (ARC) Networks ARNAM and ACORN, and funding from a Denmark-Japan NEDO project grant (Kristensen). J. Canning acknowledges a Villum Kann Rasmussen Professorship during time at iNANO in Denmark. Australian Research Council project grants (DP0770692, DP0879465-Canning), DIISR-ISL project grant (CG130013-Canning, Crossley) are acknowledged for providing various funding on this project. N. Skivesen acknowledges a Carlsberg Fellowship. G. Huyang acknowledges a studentship funding from Canning and Crossley.