Research Profile

Pleun Maaskant

Biography

Pleun Maaskant is a senior staff researcher in the III-V Materials and Devices group at Tyndall, working in this research centre since 1983. He has about 15 years’ experience in the design, fabrication and characterisation of gallium nitride based devices, and holds two patents in this field. He has been principal investigator on 15 different projects funded by Enterprise Ireland, Science Foundation Ireland, and the European Space Agency. In March 2012 he received a commercialisation award from University College Cork for the micro-LED concept, which has been commercialised through InfiniLED Ltd., a new start-up company that emerged from Tyndall.

Research Interests

Pleun's research interest is in III-V semiconductor materials and devices, and more specifically light emitting devices made from gallium nitride (GaN) and related materials. Some specific devices are micro-LEDs, super-luminescent LEDs, and laser diodes. The micro-LED is a miniature LED with good light extraction efficiency due to sculpturing of the wafer surface into little parabolic mounds that reflect light towards the back surface of the wafer, close to the surface normal. These micro-LEDs have been arranged  into addressable arrays for display applications. Device wavelengths span the spectrum from the deep UV (240nm) all the way to amber. Within Tyndall there is good complementary expertise in for example in Photonics Packaging (Peter O'Brien), gallium Nitride Epitaxial Growth and Characterization (Peter Parbrook), and Central Fabrication Facilities (Graeme Maxwell). Pleun reports to Brian Corbett, the head of the III-V material and devices group.

Publications

Peer Reviewed Journals

 YearPublication
(2015)'Over 20 MHz modulation bandwidth on 250 nm emission of AlGaN micro-LEDs'
Akhter, M. Pampili, P. ; Zubialevich, V.Z. ; Eason, C. ; Quan, Z.H. ; Maaskant, P.P. ; Parbrook, P.J. ; Corbett, B. (2015) 'Over 20 MHz modulation bandwidth on 250 nm emission of AlGaN micro-LEDs'. Electronic Letters, 51 (4):354-355 [DOI] [Details]
(2015)'Semipolar (11-22) InGaN light-emitting diodes grown on chemically--mechanically polished GaN templates'
Dinh, Duc V and Akhter, Mahbub and Presa, Silvino and Kozlowski, Grzegorz and O'Mahony, Donagh and Maaskant, Pleun P and Brunner, Frank and Caliebe, Marian and Weyers, Markus and Scholz, Ferdinand and others (2015) 'Semipolar (11-22) InGaN light-emitting diodes grown on chemically--mechanically polished GaN templates'. Physica Status Solidi (A), 212 (10):2196-2200 [Details]
(2015)'Low defect large area semi-polar (112) GaN grown on patterned (113) silicon'
Pristovsek, Markus and Han, Yisong and Zhu, Tongtong and Frentrup, Martin and Kappers, Menno J and Humphreys, Colin J and Kozlowski, Grzegorz and Maaskant, Pleun and Corbett, Brian (2015) 'Low defect large area semi-polar (112) GaN grown on patterned (113) silicon'. Physica Status Solidi (B), 252 (5):1104-1108 [Details]
(2011)'Thermal stability of SiC Schottky diode anode and cathode metalisations after 1000h at 350° C'
O’Mahony, Donagh and Duane, Russell and Campagno, Tony and Lewis, Liam and Cordero, Nicolas and Maaskant, Pleun and Waldron, Finbarr and Corbett, Brian (2011) 'Thermal stability of SiC Schottky diode anode and cathode metalisations after 1000h at 350° C'. Microelectronics Reliability, 51 (5):904-908 [Details]
(2004)'Origin of power fluctuations in GaN resonant-cavity light-emitting diodes'
Roycroft, Brendan and Akhter, Mahbub and Maaskant, Pleun and Corbett, Brian and Shaw, Alan and Bradley, Louise and de Mierry, Phillipe and Poisson, Marie-Antoinette (2004) 'Origin of power fluctuations in GaN resonant-cavity light-emitting diodes'. Optics Express, 12 (5):736-741 [Details]
(2012)'Current transport through an n-doped, nearly lattice matched GaN/AlInN/GaN heterostructure'
Corbett, B and Charash, R and Damilano, B and Kim-Chauveau, H and Cordero, N and Shams, H and Lamy, J-M and Akhter, M and Maaskant, PP and Frayssinet, E and others (2012) 'Current transport through an n-doped, nearly lattice matched GaN/AlInN/GaN heterostructure'. Physica Status Solidi (C), [Details]
(2011)'Current transport through AlInN/GaN multilayers used as n-type cladding layers in edge emitting laser diodes'
Charash, Ragh and Kim-Chauveau, Hyonju and Vajpeyi, Agam and Akther, Mahbub and Maaskant, Pleun P and Frayssinet, Eric and de Mierry, Philippe and Duboz, Jean-Yves and Corbett, Brian (2011) 'Current transport through AlInN/GaN multilayers used as n-type cladding layers in edge emitting laser diodes'. Physica Status Solidi (C), [Details]
(2009)'Free-standing gallium nitride Schottky diode characteristics and stability in a high-temperature environment'
O'Mahony, D,Zimmerman, W,Steffen, S,Hilgarth, J,Maaskant, P,Ginige, R,Lewis, L,Lambert, B,Corbett, B (2009) 'Free-standing gallium nitride Schottky diode characteristics and stability in a high-temperature environment'. Semiconductor Science and Technology, 24 [DOI] [Details]
(2009)'AlInN optical confinement layers for edge emitting group III-nitride laser structures'
Schenk, HPD et al. (2009) 'AlInN optical confinement layers for edge emitting group III-nitride laser structures'. Physica Status Solidi (C), 6 (S2):S897-S901 [Details]
(2008)'High brightness near-ultraviolet resonant LEDs'
Corbett, B and Zhu, D and Roycroft, B and Maaskant, P and Akhter, M and McAleese, C and Kappers, MJ and Humphreys, CJ (2008) 'High brightness near-ultraviolet resonant LEDs'. Physica Status Solidi (C), 5 (6):2056-2058 [Details]
(2008)'Broadband Quantum Dot Micro-Light-Emitting Diodes With Parabolic Sidewalls'
Tanriseven, S, Maaskant, P, Corbett, B; (2008) 'Broadband Quantum Dot Micro-Light-Emitting Diodes With Parabolic Sidewalls'. Applied Physics Letters, 92 (12) [DOI] [Details]
(2005)'LED flip-chip assembly with electroplated AuSn alloy'
Maaskant, PP and Akhter, M and Cordero, N and Casey, DP and Rohan, JF and Roycroft, BJ and Corbett, BM (2005) 'LED flip-chip assembly with electroplated AuSn alloy'. Physica Status Solidi (C), 2 (7):2907-2911 [Details]
(2002)'200 Mbit/s data transmission through 100 m of plastic optical fibre with nitride LEDs'
Akhter, M and Maaskant, P and Roycroft, B and Corbett, B and de Mierry, P and Beaumont, B and Panzer, K (2002) '200 Mbit/s data transmission through 100 m of plastic optical fibre with nitride LEDs'. Electronics Letters, 38 (23):1457-1458 [Details]
(2002)'Fabrication of GaN-Based Resonant Cavity LEDs'
Maaskant, P and Akhter, M and Roycroft, B and O'Carroll, E and Corbett, B (2002) 'Fabrication of GaN-Based Resonant Cavity LEDs'. Physica Status Solidi (A), 192 (2):348-353 [Details]
(2002)'Experimental characterisation of GaN-based resonant cavity light emitting diodes'
Roycroft, B,Akhter, M,Maaskant, P,de Mierry, P,Fernandez, S,Naranjo, FB,Calleja, E,McCormack, T,Corbett, B (2002) 'Experimental characterisation of GaN-based resonant cavity light emitting diodes'. Physica Status Solidi A-Applications and Materials Science, 192 :97-102 [Details]
(2001)'Failure mechanisms associated with the fabrication of InGaN-based LEDs'
Maaskant, Pleun and Akhter, Mahbub and Considine, L (2001) 'Failure mechanisms associated with the fabrication of InGaN-based LEDs'. IEEE Transactions On Electron Devices, 48 (8):1822-1825 [Details]
(1991)'High reliability sputtered Schottky diodes on GaAs'
Pham, QP and Kelly, WM and Maaskant, P and O'Brien, J (1991) 'High reliability sputtered Schottky diodes on GaAs'. International Journal Of Infrared And Millimeter Waves, 12 (1):23-31 [Details]
(1980)'The two scattering energies in a single collision'
Algra, A.J. and Maaskant, P.P. and Luitjens, S.B. (1980) 'The two scattering energies in a single collision'. Journal Of Physics D-Applied Physics, 13 (12):2363-2368 [Details]
(1978)'Measurement of material parameters of viscoelastic fluids using a rotating sphere and a rheogoniometer'
Acharya, A and Maaskant, P (1978) 'Measurement of material parameters of viscoelastic fluids using a rotating sphere and a rheogoniometer'. Rheologica Acta, 17 (4):377-382 [Details]
(1977)'Optical constants of solid krypton'
Steinberger, I. T. and Maaskant, P and Webber, S.E. (1977) 'Optical constants of solid krypton'. Journal of Chemical Physics, 66 (10):4722-4723 [Details]

Other Journals

 YearPublication
(2007)'Metal contacts to p-type GaN by electroless deposition [6797-18]'
Lewis, L and Casey, D and Rohan, JF and Maaskant, PP (2007) 'Metal contacts to p-type GaN by electroless deposition [6797-18]' PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 6797 . [Details]
(2004)'Growth optimisation of GaInN/GaN MQW RCLED structures. Device performances and reliability'
Di Forte-Poisson, MA and Romann, A and Tordjman, M and Aubry, R and Magis, M and Di Persio, J and Maaskant, P and Corbett, B (2004) 'Growth optimisation of GaInN/GaN MQW RCLED structures. Device performances and reliability' EWMOVPEX. 10th European Workshop on Metalorganic Vapour Phase Epitaxy, 1 (1) . [Details]
(2002)'Red and green resonant cavity LEDs for datacom applications [4876-37]'
Corbett, B and Roycroft, BJ and Phillips, A and Akhter, M and Maaskant, P and Lambkin, JD and McCormack, T (2002) 'Red and green resonant cavity LEDs for datacom applications [4876-37]' PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, (1) :176-183. [Details]
(1996)'First results for a 2.5 THz Schottky diode waveguide mixer'
Ellison, BN and Maddison, BJ and Mann, CM and Matheson, DN and Oldfield, ML and Marazita, S and Crowe, TW and Maaskant, P and Kelly, WM (1996) 'First results for a 2.5 THz Schottky diode waveguide mixer' 7th International Symposium Space THz Technology, Charlottesville, Virginia, :12-14. [Details]

Conference Publications

 YearPublication
(2015)Summer Topicals Meeting Series (SUM), 2015
Pampili, Pietro and Akhter, Mahbub and Eason, Cormac and Zubialevich, Vitaly Z and Maaskant, Pleun P and Quan, Zhiheng and O'Brien, Peter and Corbett, Brian and Parbrook, Peter J (2015) 250-nm emitting LED optimized for optical fibre coupling Summer Topicals Meeting Series (SUM), 2015 , pp.177-178 [Details]
(2015)Summer Topicals Meeting Series (SUM), 2015
Parbrook, Peter J and Pampili, Pietro and Akhter, Mahbub and Eason, Cormac and Zubialevich, Vitaly Z and Maaskant, Pleun P and Quan, Zhiheng and O'Brien, Peter and Corbett, Brian (2015) MHz operation of 250 nm ultra-violet micro-light emitting diodes Summer Topicals Meeting Series (SUM), 2015 , pp.173-174 [Details]
(2014)Biomedical Circuits and Systems Conference (BioCAS), 2014 IEEE
Soltan, Ahmed and Zhao, Hubin and Chaudet, Lionel and Neil, Mark and Maaskant, Pleun and Degenaar, Patrick (2014) An 8100 pixel optoelectronic array for optogenetic retinal prosthesis Biomedical Circuits and Systems Conference (BioCAS), 2014 IEEE , pp.352-355 [Details]
(2013)Biomedical Circuits and Systems Conference (BioCAS), 2013 IEEE
Al Yaman, Musa and Ghani, Arfan and Bystrov, Alex and Degenaar, Patrick and Maaskant, Pleun (2013) FPGA design of a pulse encoder for optoelectronic neural stimulation and recording arrays Biomedical Circuits and Systems Conference (BioCAS), 2013 IEEE , pp.190-193 [Details]
(2007)Enhanced efficiency of near-UV emitting LEDs for solid state lighting applications [6797-23]
Zhu, D and Corbett, B and Roycroft, B and Maaskant, P and McAleese, C and Akhter, M and Kappers, MJ and Humphreys, CJ (2007) Enhanced efficiency of near-UV emitting LEDs for solid state lighting applications [6797-23] [Details]
(2005)Packaging technology for high power blue-green LEDs
Akhter, M,Maaskant, P,Casey, D,Rohan, J,Cordero, N,Corbett, B,McInerney, JG,Farrell, G,Denieffe, DM,Barry, LP,Gamble, HS,Hughes, PJ,Moore, A (2005) Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks Packaging technology for high power blue-green LEDs , pp.634-639 [DOI] [Details]
(2007)SPIE The International society for optical engineering Proceedings 6797-23
Zhu, D and Corbett, B and Roycroft, B and Maaskant, P and McAleese, C and Akhter, M and Kappers, MJ and Humphreys, CJ (2007) Enhanced efficiency of near-UV emitting LEDs for solid state lighting applications [6797-23] SPIE The International society for optical engineering Proceedings 6797-23 [Details]
(2007)SPIE The international society for optical engineering proceedings 6797-18]
Lewis, L and Casey, D and Rohan, JF and Maaskant, PP (2007) Metal contacts to p-type GaN by electroless deposition [6797-18] SPIE The international society for optical engineering proceedings 6797-18] [Details]
(2004)10th European Workshop on MOVPE
Di Forte-Poisson, MA and Romann, A and Tordjman, M and Aubry, R and Magis, M and Di Persio, J and Maaskant, P and Corbett, B (2004) Growth optimisation of GaInN/GaN MQW RCLED structures. Device performances and reliability 10th European Workshop on MOVPE [Details]
(2002)SPIE The International Society for Optical Engineering, proceedings 4876-37]
Corbett, B and Roycroft, BJ and Phillips, A and Akhter, M and Maaskant, P and Lambkin, JD and McCormack, T (2002) Red and green resonant cavity LEDs for datacom applications [4876-37] SPIE The International Society for Optical Engineering, proceedings 4876-37] , pp.176-183 [Details]
(2000)Solid-State Device Research Conference, 2000. Proceeding of the 30th European
Akhter, Mahbub and Maaskant, Pleun and Lambkin, John and Considine, Laurence (2000) Fabrication of GaN LEDs for Optical Communications Solid-State Device Research Conference, 2000. Proceeding of the 30th European , pp.448-451 [Details]
(2000)European Space Components Conference: ESCCON 2000
Pike, J and Calvert, T and Maaskant, P (2000) Reliability of THz Whisker Contacted Schottky Diodes European Space Components Conference: ESCCON 2000 [Details]
(1996)7th International Symposium on Space THz Technology
Ellison, BN and Maddison, BJ and Mann, CM and Matheson, DN and Oldfield, ML and Marazita, S and Crowe, TW and Maaskant, P and Kelly, WM (1996) First results for a 2.5 THz Schottky diode waveguide mixer 7th International Symposium on Space THz Technology , pp.12-14 [Details]
(1994)Fifth International Symposium on Space Terahertz Technology
Kelly, WM and Mackenzie, S and Maaskant, P (1994) Novel chip geometries for THz Schottky diodes Fifth International Symposium on Space Terahertz Technology [Details]

Professional Activities

Conference Contributions

 YearPublication
(2008)24th International Congress on Cytometry in the age of Systems Biology,
Fogarty, B., Cranfield, C., Henry, W., Maaskant, P., Alderman, J., McCarthy, M., Duignan, L., Culloty, S.C., Davenport, J., Quinlan, F., adn Jackson, C.; (2008) An integrated microfluidic flow cytometry unit for marine analysis. [Oral Presentation], 24th International Congress on Cytometry in the age of Systems Biology, Budapest, Hungary , 17-MAY-08 - 21-MAY-08. [Details]

Patents

 Patent NumberTitleGranted
US 7,518,149 B2Light emitting mesa structures with high aspect ratio and near-parabolic sidewalls 14-APR-09

Teaching Activities

Current Postgraduate Students

 StudentDegree Type
Antuna-Presa Silvino Jose Doctoral Degree

Contact details

  • Pleun Maaskant
    Senior Staff Researcher
  • Tyndall Photonics
    A.6.G.33
  • 021 2346379

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School of Biological, Earth and Environmental Sciences

An Scoil Eolaíochtaí Bitheolaíocha, Domhaneolaíocha agus Comhshaoil

University College Cork, Distillery Fields, North Mall, Cork, Ireland T23 N73K

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