Paul Meredith

Summary

Affiliation: University of Queensland
Country: Australia

Publications

  1. ncbi request reprint Radiative relaxation in synthetic pheomelanin
    Jennifer Riesz
    Soft Condensed Matter Physics Group and Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
    J Phys Chem B 110:13985-90. 2006
  2. doi request reprint Electronic and optoelectronic materials and devices inspired by nature
    P Meredith
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, University of Queensland, Brisbane, Queensland, Australia
    Rep Prog Phys 76:034501. 2013
  3. ncbi request reprint Radiative relaxation quantum yields for synthetic eumelanin
    Paul Meredith
    Department of Physics, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 79:211-6. 2004
  4. ncbi request reprint A quantum yield map for synthetic eumelanin
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, St Lucia, Queensland 4072, Australia
    J Chem Phys 123:194901. 2005
  5. doi request reprint Hydration-controlled X-band EPR spectroscopy: a tool for unravelling the complexities of the solid-state free radical in eumelanin
    A Bernardus Mostert
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane, QLD 4072, Australia
    J Phys Chem B 117:4965-72. 2013
  6. doi request reprint Solvochromic effects in model eumelanin compounds
    Stephen P Nighswander-Rempel
    Centre for Organic Photonics and Electronics, School of Physical Sciences, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 84:620-6. 2008
  7. doi request reprint Time-resolved neutron reflectometry and photovoltaic device studies on sequentially deposited PCDTBT-fullerene layers
    Andrew J Clulow
    Centre for Organic Photonics and Electronics, The University of Queensland, St Lucia, QLD 4072, Australia
    Langmuir 30:11474-84. 2014
  8. doi request reprint Effect of dimerization on vibrational spectra of eumelanin precursors
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 84:613-9. 2008
  9. ncbi request reprint Quantitative fluorescence excitation spectra of synthetic eumelanin
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science and Soft Condensed Matter Theory Group, School of Physical Sciences, University of Queensland, St Lucia, QLD 4067, Australia
    J Phys Chem B 109:20629-35. 2005
  10. pmc Defining the light emitting area for displays in the unipolar regime of highly efficient light emitting transistors
    Mujeeb Ullah
    Centre for Organic Photonics and Electronics, The University of Queensland, Australia
    Sci Rep 5:8818. 2015

Collaborators

Detail Information

Publications41

  1. ncbi request reprint Radiative relaxation in synthetic pheomelanin
    Jennifer Riesz
    Soft Condensed Matter Physics Group and Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
    J Phys Chem B 110:13985-90. 2006
    ..2%, twice that of DM, although still extremely low. This means that 99.8% of the energy absorbed by CDM is dissipated via nonradiative pathways, consistent with its role as a pigmentary photoprotectant...
  2. doi request reprint Electronic and optoelectronic materials and devices inspired by nature
    P Meredith
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, University of Queensland, Brisbane, Queensland, Australia
    Rep Prog Phys 76:034501. 2013
    ..This is a rich new playground for the modern materials physicist...
  3. ncbi request reprint Radiative relaxation quantum yields for synthetic eumelanin
    Paul Meredith
    Department of Physics, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 79:211-6. 2004
    ..This hypothesis lends support to the theory that the basic structural unit of eumelanin is oligomeric rather than heteropolymeric...
  4. ncbi request reprint A quantum yield map for synthetic eumelanin
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, St Lucia, Queensland 4072, Australia
    J Chem Phys 123:194901. 2005
    ..2 and 3.2 eV), regardless of excitation wavelength. This information is important in the context of understanding melanin biofunctionality, and the quantum molecular biophysics therein...
  5. doi request reprint Hydration-controlled X-band EPR spectroscopy: a tool for unravelling the complexities of the solid-state free radical in eumelanin
    A Bernardus Mostert
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane, QLD 4072, Australia
    J Phys Chem B 117:4965-72. 2013
    ....
  6. doi request reprint Solvochromic effects in model eumelanin compounds
    Stephen P Nighswander-Rempel
    Centre for Organic Photonics and Electronics, School of Physical Sciences, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 84:620-6. 2008
    ....
  7. doi request reprint Time-resolved neutron reflectometry and photovoltaic device studies on sequentially deposited PCDTBT-fullerene layers
    Andrew J Clulow
    Centre for Organic Photonics and Electronics, The University of Queensland, St Lucia, QLD 4072, Australia
    Langmuir 30:11474-84. 2014
    ..Sequential deposition of pure components to form the active layer is attractive for large-area device fabrication, and the results demonstrate that this processing method can give efficient solar cells. ..
  8. doi request reprint Effect of dimerization on vibrational spectra of eumelanin precursors
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 84:613-9. 2008
    ..Comparison of spectral features of the monomer and dimer provides insight into eumelanin photochemistry, but final conclusions depend on the planarity of oligomeric structure in vivo...
  9. ncbi request reprint Quantitative fluorescence excitation spectra of synthetic eumelanin
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science and Soft Condensed Matter Theory Group, School of Physical Sciences, University of Queensland, St Lucia, QLD 4067, Australia
    J Phys Chem B 109:20629-35. 2005
    ..Most notably, an excitation peak at 365 nm (3.40 eV), whose position is independent of emission wavelength, is possibly attributable to a 5,6-dihydroxyindole-2-carboxylic acid (DHICA) component singly linked to a polymeric structure...
  10. pmc Defining the light emitting area for displays in the unipolar regime of highly efficient light emitting transistors
    Mujeeb Ullah
    Centre for Organic Photonics and Electronics, The University of Queensland, Australia
    Sci Rep 5:8818. 2015
    ..6 kHz) compared to single layer LEFETs. The results presented here therefore are a major step along the pathway towards the realization of LEFETs for display applications...
  11. doi request reprint Simultaneous enhancement of brightness, efficiency, and switching in RGB organic light emitting transistors
    Mujeeb Ullah
    The Centre for Organic Photonics and Electronics, School of Mathematics and Physics and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia, 4072
    Adv Mater 25:6213-8. 2013
    ..The strategy uses a non-planar electrode geometry in tri-layer LEFETs for simultaneous enhancement of the key parameters of quantum efficiency, brightness, switching, and mobility across the RGB color gamut. ..
  12. ncbi request reprint Time-resolved and steady-state fluorescence spectroscopy of eumelanin and indolic polymers
    Stephen P Nighswander-Rempel
    Centre for Biophotonics and Laser Science, University of Queensland, Brisbane, QLD, Australia
    Photochem Photobiol 83:1449-54. 2007
    ....
  13. ncbi request reprint The physical and chemical properties of eumelanin
    Paul Meredith
    Soft Condensed Matter Physics Group, School of Physical Sciences, University of Queensland, Brisbane, Australia
    Pigment Cell Res 19:572-94. 2006
    ..We are engaged in such an endeavor for the case of eumelanin...
  14. doi request reprint Detection of Explosive Vapors: The Roles of Exciton and Molecular Diffusion in Real-Time Sensing
    Mohammad A Ali
    Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences, School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland, 4072, Australia
    Chemphyschem 17:3350-3353. 2016
    ..Rather the diffusion behavior of the analyte and the strength of the binding interaction between the analyte and the polymer play first-order roles in the fluorescence quenching process...
  15. pmc Role of semiconductivity and ion transport in the electrical conduction of melanin
    Albertus B Mostert
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, University of Queensland, Brisbane St Lucia QLD 4072, Australia
    Proc Natl Acad Sci U S A 109:8943-7. 2012
    ....
  16. pmc Quantitative scattering of melanin solutions
    Jennifer Riesz
    Soft Condensed Matter Physics Group, Condensed Matter Theory Group, Physics Department, University of Queensland, St Lucia, Brisbane, Australia, QLD 4072
    Biophys J 90:4137-44. 2006
    ..The scattering coefficient versus wavelength was found to be consistent with Rayleigh theory for a particle radius of 38 +/- 1 nm. Our results shed important light on the role of melanins as photoprotectants...
  17. doi request reprint Synthesis and polymerization studies of organic-soluble eumelanins
    Kirsten J Lawrie
    School of Molecular and Microbial Sciences, University of Queensland, Brisbane, Queensland, Australia
    Photochem Photobiol 84:632-8. 2008
    ..The UV-visible spectra of the organically soluble synthetic melanins were essentially identical to that of natural eumelanin...
  18. doi request reprint Organic Photodiodes: The Future of Full Color Detection and Image Sensing
    Ross D Jansen-van Vuuren
    Center for Organic Photonics and Electronics, The University of Queensland, Queensland, 4072, Australia
    Adv Mater 28:4766-802. 2016
    ..This review covers the progress made in the OPD field, describing their development as well as the challenges and opportunities. ..
  19. pmc Slower carriers limit charge generation in organic semiconductor light-harvesting systems
    Martin Stolterfoht
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
    Nat Commun 7:11944. 2016
    ..The behaviour is attributed to the restriction of opposite charges to different phases, and to an entropic contribution that favours the joint separation of both charge carriers. ..
  20. pmc Unambiguous detection of nitrated explosive vapours by fluorescence quenching of dendrimer films
    Yan Geng
    Centre for Organic Photonics and Electronics, The University of Queensland, Queensland 4072, Australia
    Nat Commun 6:8240. 2015
    ..The results are a major advance in the development of sensing materials for the standoff detection of nitro-based explosive vapours, and deliver significant insights into the physical processes that govern the sensing efficacy...
  21. doi request reprint Photodiodes: Low Noise, IR-Blind Organohalide Perovskite Photodiodes for Visible Light Detection and Imaging (Adv. Mater. 12/2015)
    Qianqian Lin
    Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences and School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland, 4072, Australia
    Adv Mater 27:1969. 2015
    ..L. Burn, P. Meredith, and co-workers demonstrate that by manipulating the optical-field distribution in the perovskite photodiode cavity, an infrared-blind, broadband photoresponse with low noise and high detectivity can be achieved. ..
  22. doi request reprint Determination of fullerene scattering length density: a critical parameter for understanding the fullerene distribution in bulk heterojunction organic photovoltaic devices
    Andrew J Clulow
    Centre for Organic Photonics and Electronics, The University of Queensland, St Lucia, QLD 4072, Australia
    Langmuir 30:1410-5. 2014
    ....
  23. ncbi request reprint Efficient, large area ITO-and-PEDOT-free organic solar cell sub-modules
    Hui Jin
    Centre for Organic Photonics and Electronics, University of Queensland, Brisbane, QLD 4072, Australia
    Adv Mater 24:2572-7. 2012
  24. ncbi request reprint Convergent proton-transfer photocycles violate mirror-image symmetry in a key melanin monomer
    Seth Olsen
    Centre for Computational Molecular Science, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072 Australia
    J Am Chem Soc 129:6672-3. 2007
  25. doi request reprint Dielectric constant enhancement of non-fullerene acceptors via side-chain modification
    Jenny E Donaghey
    Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences and School of Mathematics and Physics, The University of Queensland, St Lucia Campus, Brisbane 4072, Australia
    Chem Commun (Camb) 51:14115-8. 2015
    ..We report that substituting the ubiquitous alkyl solubilizing groups with short glycol chains can give non-fullerene electron acceptors with a static dielectric constant of up to 9.8. ..
  26. doi request reprint Organohalide Perovskites for Solar Energy Conversion
    Qianqian Lin
    Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences, and School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland, Australia 4072
    Acc Chem Res 49:545-53. 2016
    ..This is a potential area of rich new chemistry, materials science, and physics. ..
  27. doi request reprint Low Noise, IR-Blind Organohalide Perovskite Photodiodes for Visible Light Detection and Imaging
    Qianqian Lin
    Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences and School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland, 4072, Australia
    Adv Mater 27:2060-4. 2015
    ..Their properties make them promising candidates for imaging applications. ..
  28. doi request reprint Spectral dependence of the internal quantum efficiency of organic solar cells: effect of charge generation pathways
    Ardalan Armin
    Centre for Organic Photonics and Electronics COPE, School of Mathematics and Physics, and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Australia
    J Am Chem Soc 136:11465-72. 2014
    ..Hence, an excitation-energy dependence of the IQE in this case can be explained as the interplay between two photocurrent-generating channels, without recourse to hot excitons or other exotic processes. ..
  29. doi request reprint Acceptor and Excitation Density Dependence of the Ultrafast Polaron Absorption Signal in Donor-Acceptor Organic Solar Cell Blends
    Nasim Zarrabi
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
    J Phys Chem Lett 7:2640-6. 2016
    ....
  30. ncbi request reprint A new approach to the synthesis of conjugated polymer-nanocrystal composites for heterojunction optoelectronics
    Andrew Watt
    Soft Condensed Matter Physics Group and Centre for Biophotonics and Laser Science, School of Physical Sciences, University of Queensland, Brisbane, Australia
    Chem Commun (Camb) . 2004
    ....
  31. ncbi request reprint Correction: Dielectric constant enhancement of non-fullerene acceptors via side-chain modification
    Jenny E Donaghey
    Centre for Organic Photonics and Electronics, School of Chemistry and Molecular Biosciences and School of Mathematics and Physics, The University of Queensland, St Lucia Campus, Brisbane 4072, Australia
    Chem Commun (Camb) 52:13714-13715. 2016
    ..Correction for 'Dielectric constant enhancement of non-fullerene acceptors via side-chain modification' by Jenny E. Donaghey et al., Chem. Commun., 2015, 51, 14115-14118...
  32. doi request reprint Heavy Water as a Probe of the Free Radical Nature and Electrical Conductivity of Melanin
    Shermiyah B Rienecker
    School of Chemistry and Molecular Biosciences, Centre for Organic Photonics and Electronics, School of Mathematics and Physics, and Centre for Advanced Imaging, University of Queensland, Brisbane, St Lucia QLD 4072, Australia
    J Phys Chem B 119:14994-5000. 2015
    ..Our EPR results confirm the proposed two-spin mechanism and clearly demonstrate the power of combining macroscopic measurements with observations from mesoscopic probes for the study of bioelectronic materials. ..
  33. doi request reprint Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes
    Ardalan Armin
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
    Nat Commun 6:6343. 2015
    ..The design concept allows for response tuning and is generic for other spectral windows. Furthermore, it is material-agnostic and applicable to other disordered and polycrystalline semiconductors. ..
  34. doi request reprint Nanostructured, active organic-metal junctions for highly efficient charge generation and extraction in polymer-fullerene solar cells
    Ajay K Pandey
    Centre for Organic Photonics and Electronics, The University of Queensland, St Lucia, Australia
    Adv Mater 24:1055-61. 2012
    ..The nanostructured metal-organic interface delivers combined enhanced light trapping and improved charge extraction leading to up to a 10% increase in power conversion efficiency of already optimized planar devices...
  35. doi request reprint Fluoride sensing by catechol-based π-electron systems
    Byeong Kwan An
    Centre for Organic Photonics and Electronics, The University of Queensland, Queensland, 4072 Australia
    Chemphyschem 11:3517-21. 2010
    ..7 μM to 200 μM. Importantly, when adsorbed onto a solid support the fluorescent catechol dye can be used to detect the presence of fluoride in aqueous solution...
  36. ncbi request reprint Facile iterative synthesis of biphenyl dendrons with a functionalized focus
    Ellen J Wren
    Centre for Organic Photonics and Electronics, The University of Queensland, School of Chemistry and Molecular Biosciences, Chemistry Building, Queensland, Australia, 4072
    Org Lett 12:4338-40. 2010
    ....
  37. doi request reprint Gaseous adsorption in melanins: hydrophilic biomacromolecules with high electrical conductivities
    A Bernardus Mostert
    Centre for Organic Photonics and Electronics, School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
    Langmuir 26:412-6. 2010
    ....
  38. ncbi request reprint Quantitative photoluminescence of broad band absorbing melanins: a procedure to correct for inner filter and re-absorption effects
    Jennifer Riesz
    Soft Condensed Matter Physics Group and Centre for Biophotonics and Laser Science, Department of Physics, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
    Spectrochim Acta A Mol Biomol Spectrosc 61:2153-60. 2005
    ..These procedures allow accurate quantitative analysis of the emission of low quantum yield samples (such as melanin) at concentrations where absorption is significant...
  39. ncbi request reprint Energy transfer dynamics of nanocrystal-polymer composites
    Jamie H Warner
    Center for Biophotonics and Laser Science, Center for Quantum Computer Technology, School of Physical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
    J Phys Chem B 109:9001-5. 2005
    ..Photoluminescence excitation spectroscopy of the PbS nanocrystal emission from the composite shows features attributed to MEH-PPV providing evidence of a Förster transfer process...
  40. pmc Chemical and structural disorder in eumelanins: a possible explanation for broadband absorbance
    M Linh Tran
    Soft Condensed Matter Physics Group, and Theoretical Condensed Matter Physics Group, School of Physical Sciences, University of Queensland, Brisbane, QLD 4072, Australia
    Biophys J 90:743-52. 2006
    ..Indeed, one may speculate that the robust functionality of melanins in vitro is a direct consequence of its heterogeneity, i.e., chemical disorder is a "low cost" natural resource in these systems...
  41. ncbi request reprint Study of optical properties of electropolymerized melanin films by photopyroelectric spectroscopy
    José Eduardo de Albuquerque
    Departamento de Fisica, Universidade Federal de Vicosa, Vicosa, MG, 36571 000, Brazil
    Eur Biophys J 35:190-5. 2006
    ..We believe this to be the first such measurement of its kind on this material. Additionally, we found an optical gap in these melanin films at 1.70 eV...