Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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1.080 Topics available

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977 Locations available

693.932 PEOPLE
693.932 People People

693.932 People

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Naji, M.
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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (14/14 displayed)

  • 2020Gigabit per second visible light communication based on AlGaInP red micro-LED micro-transfer printed onto diamond and glass22citations
  • 2017Design, fabrication and application of GaN-based micro-LED arrays with individual addressing by n-electrodes26citations
  • 2012Colloidal quantum dot nanocomposites for visible wavelength conversion of modulated optical signals45citations
  • 2010Amplified spontaneous emission in free-standing membranes incorporating star-shaped monodisperse π-conjugated truxene oligomers17citations
  • 2009Free-standing light-emitting organic nanocomposite membranescitations
  • 2009Star-shaped oligofluorene nanostructured blend materials5citations
  • 2009Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing34citations
  • 2008Integration by self-aligned writing of nanocrystal/epoxy composites on InGaN micropixelated light-emitting diodes18citations
  • 2008Light emitting polymer blends and diffractive optical elements in high-speed direct laser writing of microstructures4citations
  • 2008Individually-addressable flip-chip AllnGaN micropixelated light emitting diode arrays with high continuous and nanosecond output power50citations
  • 2006Hybrid inorganic/organic micro-structured light-emitting diodes produced by self-aligned direct writingcitations
  • 2006Microfabrication in free-standing gallium nitride using UV laser micromachining14citations
  • 2006Wavelength-tunable and white light emission from polymer-converted micropixellated InGaN ultraviolet light-emitting diodes23citations
  • 2004Micromachining and dicing of sapphire, gallium nitride and micro LED devices with UV copper vapour laser62citations

Places of action

Chart of shared publication
Carreira, J. F. C.
1 / 3 shared
Xie, Enyuan
2 / 2 shared
Dawson, Md
14 / 39 shared
Haas, H.
1 / 3 shared
Bian, R.
1 / 1 shared
Strain, Michael
1 / 10 shared
Herrnsdorf, Johannes
4 / 7 shared
Islim, Mohamed Sufyan
1 / 4 shared
Jalajakumari, Aravind V. N.
1 / 1 shared
Almer, Oscar
1 / 1 shared
Mckendry, Jonathan
3 / 5 shared
Watson, Ian
3 / 20 shared
Stonehouse, Mark
1 / 1 shared
Obrien, Dominic
1 / 1 shared
Henderson, Robert
1 / 4 shared
He, Xiangyu
1 / 1 shared
Chun, Hyunchae
1 / 1 shared
Faulkner, Grahame
1 / 1 shared
Rajbhandari, Sujan
1 / 1 shared
Ferreira, Ricardo
1 / 3 shared
Guilhabert, Benoit Jack Eloi
5 / 11 shared
Rae, B.
1 / 1 shared
Laurand, Nicolas
3 / 8 shared
Massoubre, David
1 / 1 shared
Kelly, A.
1 / 5 shared
Gong, Zheng
2 / 2 shared
Henderson, R. K.
1 / 1 shared
Mackintosh, Allan R.
1 / 1 shared
Chen, Yujie
2 / 3 shared
Skabara, Peter J.
1 / 12 shared
Kanibolotskyy, Oleksandr
4 / 8 shared
Pethrick, R. A.
6 / 17 shared
Mackintosh, A. R.
5 / 7 shared
Skabara, P. J.
2 / 5 shared
Wu, M.
2 / 22 shared
Birch, David
1 / 1 shared
Zarowna, A.
1 / 1 shared
Edwards, Paul
2 / 22 shared
Martin, Robert
2 / 35 shared
Rolinski, Olaf
1 / 1 shared
Kuehne, A. J. C.
1 / 3 shared
Mackintosh, Allan
1 / 1 shared
Perepichka, I. F.
1 / 1 shared
Pethrick, Richard
1 / 4 shared
Skabara, Peter
1 / 13 shared
Keuhne, A. J. C.
1 / 1 shared
Massoubre, D.
2 / 2 shared
Zhang, H. X.
2 / 2 shared
Jin, S. R.
1 / 1 shared
Kuehne, A. J.
1 / 1 shared
Elfstrom, D.
1 / 1 shared
Taghizadeh, M. R.
1 / 1 shared
Waddie, A. J.
1 / 1 shared
Kuhne, A.
2 / 2 shared
Suyal, H.
1 / 3 shared
Bradley, D. D. C.
3 / 15 shared
Walker, A. C.
1 / 2 shared
Mccarthy, A.
1 / 6 shared
Zhang, H. Z.
1 / 1 shared
Gong, Z.
1 / 6 shared
Griffin, C.
2 / 2 shared
Jessop, P. E.
1 / 1 shared
Girkin, J. M.
1 / 2 shared
Belton, C.
1 / 2 shared
Sun, H. D.
1 / 5 shared
Howard, H.
1 / 1 shared
Knowles, M. R. H.
2 / 3 shared
Illy, E. K.
2 / 2 shared
Oconnor, G. M.
1 / 2 shared
Conneely, A.
1 / 1 shared
Stavrinou, P. N.
1 / 1 shared
Jeon, C. W.
2 / 4 shared
Heliotis, G.
1 / 5 shared
Choi, H. W.
1 / 2 shared
Rice, G. B.
1 / 1 shared
Chart of publication period
2020
2017
2012
2010
2009
2008
2006
2004

Co-Authors (by relevance)

  • Carreira, J. F. C.
  • Xie, Enyuan
  • Dawson, Md
  • Haas, H.
  • Bian, R.
  • Strain, Michael
  • Herrnsdorf, Johannes
  • Islim, Mohamed Sufyan
  • Jalajakumari, Aravind V. N.
  • Almer, Oscar
  • Mckendry, Jonathan
  • Watson, Ian
  • Stonehouse, Mark
  • Obrien, Dominic
  • Henderson, Robert
  • He, Xiangyu
  • Chun, Hyunchae
  • Faulkner, Grahame
  • Rajbhandari, Sujan
  • Ferreira, Ricardo
  • Guilhabert, Benoit Jack Eloi
  • Rae, B.
  • Laurand, Nicolas
  • Massoubre, David
  • Kelly, A.
  • Gong, Zheng
  • Henderson, R. K.
  • Mackintosh, Allan R.
  • Chen, Yujie
  • Skabara, Peter J.
  • Kanibolotskyy, Oleksandr
  • Pethrick, R. A.
  • Mackintosh, A. R.
  • Skabara, P. J.
  • Wu, M.
  • Birch, David
  • Zarowna, A.
  • Edwards, Paul
  • Martin, Robert
  • Rolinski, Olaf
  • Kuehne, A. J. C.
  • Mackintosh, Allan
  • Perepichka, I. F.
  • Pethrick, Richard
  • Skabara, Peter
  • Keuhne, A. J. C.
  • Massoubre, D.
  • Zhang, H. X.
  • Jin, S. R.
  • Kuehne, A. J.
  • Elfstrom, D.
  • Taghizadeh, M. R.
  • Waddie, A. J.
  • Kuhne, A.
  • Suyal, H.
  • Bradley, D. D. C.
  • Walker, A. C.
  • Mccarthy, A.
  • Zhang, H. Z.
  • Gong, Z.
  • Griffin, C.
  • Jessop, P. E.
  • Girkin, J. M.
  • Belton, C.
  • Sun, H. D.
  • Howard, H.
  • Knowles, M. R. H.
  • Illy, E. K.
  • Oconnor, G. M.
  • Conneely, A.
  • Stavrinou, P. N.
  • Jeon, C. W.
  • Heliotis, G.
  • Choi, H. W.
  • Rice, G. B.
OrganizationsLocationPeople

article

Colloidal quantum dot nanocomposites for visible wavelength conversion of modulated optical signals

  • Dawson, Md
  • Guilhabert, Benoit Jack Eloi
  • Rae, B.
  • Mckendry, Jonathan
  • Laurand, Nicolas
  • Gu, Erdan
  • Massoubre, David
  • Kelly, A.
  • Gong, Zheng
  • Henderson, R. K.
Abstract

We report on the steady-state and optical modulation characteristics of a luminescence down-converting colloidal quantum dot/polyimide nanocomposite system suitable for integration with gallium nitride optoelectronics. The approach provides solution-processable and environmentally stable composite materials whose optical conversion and intrinsic modulation properties were evaluated at wavelengths from 535 to 624 nm. A nanocomposite for white-light generation upon excitation and mixing with 450-nm light was also obtained by blending colloidal quantum dots of different sizes in the same matrix. The forward external quantum efficiencies of the resulting nanocomposites were found to depend on the wavelength and can be as high as 33%. Optical modulation bandwidth above 25 MHz, which is an order of magnitude higher than for typical phosphor-based color-converters for GaN LEDs, and wavelength-converted data with an open-eye diagram at 25 Mb/s are demonstrated under external gallium nitride light-emitting diode excitation. These modulation characteristics are correlated with carrier lifetimes. This work provides guideline parameters and creates a possible path to integrated hybrid visible light sources for scientific and communications application

Topics
  • nanocomposite
  • impedance spectroscopy
  • nitride
  • quantum dot
  • Gallium
  • luminescence