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Leader in Integrated ICT Hardware & Systems

Chris Broderick -

Contact

+353 (0)21 2346970

  • Photonics
I am a Staff Researcher (Senior Researcher) at Tyndall National Institute, University College Cork, Ireland, currently on secondment with the group of Prof. Chris Van de Walle at the University of California, Santa Barbara, U.S.A. as a European Union Marie Skłodowska-Curie Global Fellow.

I was a Postdoctoral Researcher at Tyndall prior to my promotion to Staff Researcher in 2021 and, prior to that, I was a Postdoctoral Research Associate at the University of Bristol, U.K. I hold B.Sc. (Hons) and Ph.D. degrees in physics from University College Cork.

My interests lie in materials theory in simulation, focusing on (i) developing fundamental theoretical understanding of the electronic and optical properties of novel and emerging semiconductor material systems, and (ii) developing models and software to enable multi-scale simulations of semiconductor materials and devices, building key insights obtained from atomistic electronic structure calculations into atomistic and continuum empirical models suitable to quantitatively predict technologically relevant properties in semiconductor materials and nanostructures.

My experience ranges from performing first principles calculations and analysis of fundamental material properties, through the derivation and parametrisation of empirical models for multi-scale simulations, as well as software implementations of these models (including enabling interoperability between proprietary, open-source and self-developed software packages).

Research Grants

Funder Start Date End Date Title Role
National University of Ireland (NUI) 01-MAR-18 29-FEB-20 National University of Ireland Post-Doctoral Fellowship in the Sciences
Royal Irish Academy 01-JUN-19 30-NOV-19 Charlemont Grant
European Commission 01-OCT-21 30-SEP-24 Marie Skłodowska-Curie Global Fellowship
Irish Research Council 01-OCT-10 30-SEP-13 EMBARK Postgraduate Scholarship

Book Chapters

YearPublication
2020Chapter 2: Mid-Infrared Light-Emitting Diodes
A. Krier, E. Repiso, F. Al-Saymari, P. J. Carrington, A. R. J. Marshall, L. Qi, S. E. Krier, K. J. Lulla, M. Steer, C. MacGregor, C. A. Broderick, R. Arkani, E. P. O’Reilly, M. Sorel, S. I. Molina, and M. De La Mata (2020) Chapter 2: Mid-Infrared Light-Emitting Diodes. : Woodhead Publishing.
2017Chapter 9: Dilute Nitride Alloys
C. A. Broderick, M. Seifikar, J. M. Rorison, and E. P. O'Reilly (2017) Chapter 9: Dilute Nitride Alloys. : CRC Press.
2017Chapter 10: Dilute Bismide Alloys
C. A. Broderick, I. P. Marko, E. P. O'Reilly, and S. J. Sweeney (2017) Chapter 10: Dilute Bismide Alloys. : CRC Press.
2013Chapter 3: Theory of the Electronic Structure of Dilute Bismide Alloys - Tight-Binding and k.p Models
C. A. Broderick, M. Usman, and E. P. O'Reilly (2013) Chapter 3: Theory of the Electronic Structure of Dilute Bismide Alloys - Tight-Binding and k.p Models. : Springer.

Peer Reviewed Journals

YearJournalPublication
2022Physical Review AppliedImpact of band anticrossing on band-to-band tunneling in highly mismatched semiconductor alloys
S. Das, C. A. Broderick, and E. P. O’Reilly (2022) Impact of band anticrossing on band-to-band tunneling in highly mismatched semiconductor alloys. : . [Details]
2022Physical Review MaterialsElectronic and optical properties of SiGeSn alloys lattice-matched to Ge
P. M. Pearce, C. A. Broderick, M. P. Nielsen, A. D. Johnson, and N. J. Ekins-Daukes (2022) Electronic and optical properties of SiGeSn alloys lattice-matched to Ge. : . [Details]
2021Journal of Physics D: Applied PhysicsImpact of stoichiometry and strain on GeSn alloys from first principles calculations
C. O'Donnell, A. Sanchez-Soares, C. A. Broderick, and J. C. Greer (2021) Impact of stoichiometry and strain on GeSn alloys from first principles calculations. : . [Details]
2021Applied Physics LettersMonolithic infrared silicon photonics: The rise of (Si)GeSn semiconductors
O. Moutanabbir, S. Assali, X. Gong, E. P. O'Reilly, C. A. Broderick, B. Marzban, J. Witzens, W. Du, S.-Q. Yu, A. Chelnokov, D. Buca, and D. Nam (2021) Monolithic infrared silicon photonics: The rise of (Si)GeSn semiconductors. : . [Details]
2020Chemistry of MaterialsProgress on germanium-tin nanoscale alloys
J. Doherty, S. Biswas, E. Galluccio, C. A. Broderick, A. Garcia-Gil, R. Duffy, E. P. O'Reilly, and J. D. Holmes (2020) Progress on germanium-tin nanoscale alloys. : . [Details]
2020Physical Review AppliedContinuous-wave magneto-optical determination of the carrier lifetime in coherent GeSn/Ge heterostructures
E. Vitiello, S. Rossi, C. A. Broderick, G. Gravina, A. Balocchi, X. Marie, E. P. O’Reilly, M. Myronov, and F. Pezzoli (2020) Continuous-wave magneto-optical determination of the carrier lifetime in coherent GeSn/Ge heterostructures. : . [Details]
2020Optical and Quantum ElectronicsElectronic properties of type-II GaAsSb/GaAs quantum rings for applications in intermediate band solar cells
R. Arkani, C. A. Broderick, and E. P. O'Reilly (2020) Electronic properties of type-II GaAsSb/GaAs quantum rings for applications in intermediate band solar cells. : . [Details]
2019Journal of Applied PhysicsElectronic structure evolution in dilute carbide GeC alloys and implications for device applications
C. A. Broderick, M. D. Dunne, D. S. P. Tanner, and E. P. O'Reilly (2019) Electronic structure evolution in dilute carbide GeC alloys and implications for device applications. : . [Details]
2019Optical and Quantum ElectronicsComparison of first principles and semi-empirical models of the structural and electronic properties of GeSn alloys
E. J. O'Halloran, C. A. Broderick, D. S. P. Tanner, S. Schulz, and E. P. O'Reilly (2019) Comparison of first principles and semi-empirical models of the structural and electronic properties of GeSn alloys. : . [Details]
2019Journal of Physics D: Applied PhysicsOptical properties of metamorphic type-I InAsSb/Al In As quantum wells grown on GaAs for the mid-infrared spectral range
E. Repiso, C. A. Broderick, M. de la Mata, R. Arkani, Q. Lu, A. R. J. Marshall, S. I. Molina, E. P. O'Reilly, P. J. Carrington, and A. Krier (2019) Optical properties of metamorphic type-I InAsSb/Al In As quantum wells grown on GaAs for the mid-infrared spectral range. : . [Details]
2019Scientific ReportsGiant bowing of the band gap and spin-orbit splitting energy in GaPBi dilute bismide alloys
Z. L. Bushell, C. A. Broderick, L. Nattermann, R. Joseph, J. L. Keddie, J. M. Rorison, K. Volz, and S. J. Sweeney (2019) Giant bowing of the band gap and spin-orbit splitting energy in GaPBi dilute bismide alloys. : . [Details]
2018Physical Review AppliedImpact of disorder on the optoelectronic properties of GaNAsBi alloys and heterostructures
M. Usman, C. A. Broderick, and E. P. O'Reilly (2018) Impact of disorder on the optoelectronic properties of GaNAsBi alloys and heterostructures. : . [Details]
2018Semiconductor Science and TechnologyTheory and design of InGaAsBi mid-infrared semiconductor lasers: type-I quantum wells for emission beyond 3 μm on InP substrates
C. A. Broderick,W. Xiong, S. J. Sweeney, E. P. O'Reilly, and J. M. Rorison (2018) Theory and design of InGaAsBi mid-infrared semiconductor lasers: type-I quantum wells for emission beyond 3 μm on InP substrates. : . [Details]
2017Scientific ReportsGaAsBi/GaNAs type-II quantum wells: novel strain-balanced heterostructures for GaAs-based near-and mid-infrared photonics
C. A. Broderick, S. R. Jin, I. P. Marko, K. Hild, P. Ludewig, Z. L. Bushell, W. Stolz, J. M. Rorison, E. P. O’Reilly, K. Volz, Stephen J Sweeney (2017) GaAsBi/GaNAs type-II quantum wells: novel strain-balanced heterostructures for GaAs-based near-and mid-infrared photonics. : . [Details]
2017IET OptoelectronicsHighly-mismatched III-V semiconductor alloys applied in multiple quantum well photovoltaics
W. Xiong, C. A. Broderick, and J. M. Rorison (2017) Highly-mismatched III-V semiconductor alloys applied in multiple quantum well photovoltaics. : .
2016IEEE Journal of Quantum ElectronicsTheory and optimization of 1.3-μm metamorphic quantum well lasers
S. Bogusevschi, C. A. Broderick, and E. P. O'Reilly (2016) Theory and optimization of 1.3-μm metamorphic quantum well lasers. : . [Details]
2016Scientific ReportsOptical gain in GaAsBi/GaAs quantum well diode lasers
I. P. Marko, C. A. Broderick, S. R. Jin, P. Ludewig, W. Stolz, K. Volz, J. M. Rorison, E. P. O’Reilly, and S. J. Sweeney (2016) Optical gain in GaAsBi/GaAs quantum well diode lasers. : . [Details]
2015IEEE Journal of Selected Topics In Quantum ElectronicsTheory of the electronic and optical properties of dilute bismide quantum well lasers
C. A. Broderick, P. E. Harnedy, and E. P. O'Reilly (2015) Theory of the electronic and optical properties of dilute bismide quantum well lasers. : . [Details]
2015Semiconductor Science and TechnologyDetermination of type-I band offsets in GaBixAs1–x quantum wells using polarisation-resolved photovoltage spectroscopy and 12-band k.p calculations
C. A. Broderick, P. Harnedy, P. Ludewig, Z. L. Bushell, K. Volz, R. J. Manning, and E. P. O'Reilly (2015) Determination of type-I band offsets in GaBixAs1–x quantum wells using polarisation-resolved photovoltage spectroscopy and 12-band k.p calculations. : . [Details]
2015Semiconductor Science and TechnologyExperimental and modelling study of InGaBiAs/InP alloys with up to 5.8% Bi, and with Δso > Eg
G. M. T. Chai, C. A. Broderick, E. P. O'Reilly, Z. Othaman, S. R. Jin, J. P. Petropoulos, Y. Zhong, P. B. Dongmo, J. M. O. Zide, S. J. Sweeney, and T. J. C. Hosea (2015) Experimental and modelling study of InGaBiAs/InP alloys with up to 5.8% Bi, and with Δso > Eg. : . [Details]
2014Physical Review BAnisotropic electron g factor as a probe of the electronic structure of GaBiAs/GaAs epilayers
C. A. Broderick, S. Mazzucato, H. Carrère, T. Amand, H. Makhloufi, A. Arnoult, C. Fontaine, O. Donmez, A. Erol, M. Usman, E. P. O'Reilly, and X. Marie (2014) Anisotropic electron g factor as a probe of the electronic structure of GaBiAs/GaAs epilayers. : . [Details]
2014Journal of LuminescenceLuminescence properties of dilute bismide systems
B. Breddermann, A. Bäumner, S. W. Koch, P. Ludewig, W. Stolz, K. Volz, J. Hader, J. V. Moloney, C. A. Broderick, and E. P. O'Reilly (2014) Luminescence properties of dilute bismide systems. : . [Details]
2013Physica Status Solidi B-Basic Solid State Physics12‐band k.p model for dilute bismide alloys of (In)GaAs derived from supercell calculations
C. A. Broderick, M. Usman, and E. P. O'Reilly (2013) 12‐band k.p model for dilute bismide alloys of (In)GaAs derived from supercell calculations. : . [Details]
2013Physical Review BImpact of alloy disorder on the band structure of compressively strained GaBiAs
M. Usman, C. A. Broderick, Z. Batool, K. Hild, T. J. C. Hosea, S. J. Sweeney, and E. P. O’Reilly (2013) Impact of alloy disorder on the band structure of compressively strained GaBiAs. : . [Details]
2013Semiconductor Science and TechnologyDerivation of 12- and 14-band k·p Hamiltonians for dilute bismide and bismide-nitride semiconductors
C. A. Broderick, M. Usman, and E. P. O'Reilly (2013) Derivation of 12- and 14-band k·p Hamiltonians for dilute bismide and bismide-nitride semiconductors. : . [Details]
2012Semiconductor Science and TechnologyBand engineering in dilute nitride and bismide semiconductor lasers
M. Usman, C. A. Broderick, A. Lindsay, and E. P. O'Reilly (2012) Band engineering in dilute nitride and bismide semiconductor lasers. : . [Details]
2011Physical Review BTight-binding analysis of the electronic structure of dilute bismide alloys of GaP and GaAs
M. Usman, C. A. Broderick, A. Lindsay, and E. P. O'Reilly (2011) Tight-binding analysis of the electronic structure of dilute bismide alloys of GaP and GaAs. : . [Details]

Conference Publications

YearPublication
2021International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. Murphy, E. P. O'Reilly, and C. A. Broderick (2021) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2021IEEE International Semiconductor Laser Conference (IEEE-ISLC)
Z. C. M. Davidson, T. Hepp, J. M. Rorison, S. J. Sweeney, K. Volz, and C. A. Broderick (2021) IEEE International Semiconductor Laser Conference (IEEE-ISLC). : . [Details]
2021 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
Z. C. M. Davidson, J. M. Rorison, S. J. Sweeney, and C. A. Broderick (2021) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2020International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. A. Broderick (2020) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2020IEEE Photonics Society Summer Topicals Meeting Series (IEEE-SUM)
C. A. Broderick, E. J. O'Halloran, M. D. Dunne, A. C. Kirwan, A. D. Andreev, S. Schulz, and E. P. O'Reilly (2020) IEEE Photonics Society Summer Topicals Meeting Series (IEEE-SUM). : . [Details]
2020International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
M. D. Dunne, C. A. Broderick, M. Luisier, and E. P. O'Reilly (2020) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2019International Conference on Numerical Simulation of Optoelectronic Devices
C. A. Broderick, S. Das, and E. P. O'Reilly (2019) International Conference on Numerical Simulation of Optoelectronic Devices. : . [Details]
2019International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
R. Arkani, C. A. Broderick, and E. P. O'Reilly (2019) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2019International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. A. Broderick, E. J. O'Halloran, and E. P. O'Reilly (2019) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2019IEEE International Conference on Group-IV Photonics (IEEE-GFP)
C. A. Broderick, E. J. O'Halloran, A. C. Kirwan, M. D. Dunne, D. S. P. Tanner, S. Schulz, and E. P. O'Reilly (2019) IEEE International Conference on Group-IV Photonics (IEEE-GFP). : . [Details]
2018IEEE International Conference on Nanotechnology (IEEE-NANO)
A. C. Kirwan, E. J. O'Halloran, C. A. Broderick, S. Schulz, and E. P. O'Reilly (2018) IEEE International Conference on Nanotechnology (IEEE-NANO). : . [Details]
2018International Conference on Numerical Simulations of Optoelectronic Devices (NUSOD)
S. Schulz, C. A. Broderick, E. J. O'Halloran, and E. P. O'Reilly (2018) International Conference on Numerical Simulations of Optoelectronic Devices (NUSOD). : . [Details]
2018IEEE International Conference on Nanotechnology (IEEE-NANO)
C. A. Broderick, M. D. Dunne, D. S. P. Tanner, A. C. Kirwanv, E. J. O'Halloranl, S. Schulz, and E. P. O'Reilly (2018) IEEE International Conference on Nanotechnology (IEEE-NANO). : . [Details]
2018IEEE International Conference on Nanotechnology (IEEE-NANO)
R. Arkani, C. A. Broderick, and E. P. O'Reilly (2018) IEEE International Conference on Nanotechnology (IEEE-NANO). : . [Details]
2018International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
R. Arkani, C. A. Broderick, and E. P. O'Reilly (2018) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2017International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. A. Broderick, W. Xiong, S. R. Jin, I. P. Marko, Z. L. Bushell, K. Hild, P. Ludewig, W. Stolz, K. Volz, J. M. Rorison, S. J. Sweeney, and E. P. O’Reilly (2017) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2016International Conference on Transparent Optical Networks (ICTON)
J. M. Rorison, C. A. Broderick, W. Xiong, Q. Wang (2016) International Conference on Transparent Optical Networks (ICTON). : . [Details]
2016International Conference on Transparent Optical Networks (ICTON)
C. A. Broderick, W. Xiong, S. J. Sweeney, E. P. O'Reilly, and J. M. Rorison (2016) International Conference on Transparent Optical Networks (ICTON). : . [Details]
2016International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. A. Broderick, S. Bogusevschi, and E. P. O'Reilly (2016) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2016International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. A. Broderick, J. M. Rorison, I. P. Marko, S. J. Sweeney, and E. P. O’Reilly (2016) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2016International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
C. A. Broderick, W. Xiong, and J. M. Rorison (2016) International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD). : . [Details]
2014IEEE International Semiconductor Laser Conference (IEEE-ISLC)
S. J. Sweeney, I. P. Marko, S. R. Jin, K. Hild, Z. Batool, P. Ludewig, L. Natterman, Z. L. Bushell, W. Stolz, K. Volz, C. A. Broderick, M. Usman, P. E. Harnedy, E. P. O'Reilly, R. Butkute, V. Pacebutas, A. Geiutis, and A. Krotkus (2014) IEEE International Semiconductor Laser Conference (IEEE-ISLC). : . [Details]
2011International Conference on Transparent Optical Networks (ICTON)
C. A. Broderick, M. Usman, A. Lindsay, and E. P. O'Reilly (2011) International Conference on Transparent Optical Networks (ICTON). : . [Details]

Honours and Awards

  • [2014] - BOC Gases Postgraduate Bursary
  • [2019] - 69th Lindau Nobel Laureate Meeting
  • [2010] - Official Acknowledgement of Academic Excellence
  • [2008] - Title of College Scholar
  • [2009] - Title of College Scholar
  • [2010] - Title of College Scholar
  • [2011] - Title of College Scholar
  • [2020] - "Top-Ten" paper at the International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
  • [2019] - "Top-Ten" paper at the International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
  • [2018] - "Top-Ten" paper at the International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
  • [2016] - "Top-Ten" paper at the International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
  • [2012] - "Highlight of 2012" paper for the Institute of Physics journal Semiconductor Science and Technology
  • [2022] - Outstanding Reviewer (Journal of Physics D: Applied Physics)

Professional Associations

  • Member
  • Member
  • Member
  • Associated Member

Committees

  • [2017] National University of Ireland: "Developing Supports for Postdoctoral Researchers and Early-Career Academics",
  • [2020] National University of Ireland: "Developing Supports for Postdoctoral Researchers and Early-Career Academics",
  • [2014] Local Organising Committee - 5th International Workshop on Bismuth-Containing Semiconductors,
  • [2022] Program Committee - International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), The Committee sets the scientific agenda of the annual NUSOD conference, including session and invited speaker nomination and selection, in addition to refereeing of submitted conference paper.

Outreach Activities

  • Established and co-manage the @TyndallPTG Twitter account of the Photonics Theory Group at Tyndall National Institute.
  • Undergraduate intern scientific supervisor and professional mentor with the Irish Photonic Integration Centre (IPIC)

Employment

  • [2015] University of Bristol - Postdoctoral Researcher
  • [2016] Tyndall National Institute - Postdoctoral Researcher
  • [2021] Tyndall National Institute - Staff Researcher (Senior Researcher)
  • [2021] University of California, Santa Barbara - Research Fellow (Visiting)

Education

  • [2010] University College Cork - B.Sc. (Hons.)
  • [2015] University College Cork - Ph.D.
  • [2018] The Institute of Leadership and Management - Professional Skills for Research Leaders

Consultancy

  • Self-developed suite of optoelectronic device simulation software employed in several consultancy contracts with international photonics companies (ongoing activity) -

Journal Activities

  • Phys Rev B - Referee
  • J Appl Phys - Referee
  • Applied Physics Letters - Referee
  • IEEE J Sel Top Quant - Referee
  • IEEE Journal of Quantum Electronics - Referee
  • Semiconductor Science and Technology - Referee
  • Thin Solid Films - Referee
  • Superlattice Microst - Referee
  • Opt Quant Electron - Referee
  • J Comput Electron - Referee
  • Aip Adv - Referee
  • Comp Mater Sci - Referee
  • NPG Asia Materials - Referee
  • Journal of Physics D: Applied Physics - Referee
  • Mater Today - Referee
  • Physica E - Referee
  • Modelling And Simulation In Materials Science And Engineeringmodelling And Simulation In Materials Science And Engineering - Referee
  • Journal Of Vacuum Science & Technology A: Vacuum, Surfaces, And Films - Referee
  • Proceedings of the National Acadamy of Sciences - Referee
  • Infrared Physics and Technology - Referee
  • Heliyon - Referee
  • Mat Sci Semicon Proc - Referee
  • Appl Phys Express - Referee
  • Acs Photonics - Referee
  • ACS Applied Energy Materials - Referee
  • Journal Of Physics-Condensed Matterjournal Of Physics-Condensed Matter - Referee
  • Phys Status Solidi B - Referee
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