Publications & presentations

Project publications:

J. Legendre and P.-O. Chapuis, “Operating conditions and thermodynamic bounds of dual radiative heat engines”, Physical Review Applied (2025), minor revisions submitted.  
arXiV:2402.07527. https://doi.org/10.48550/arXiv.2402.07527 

J. Legendre and P.-O. Chapuis, “CRESCENT-1D: A 1D solver of coupled charge and light transport in heterostructures for the design of near-field thermophotonic engines”, IEEE Transactions on Electron Devices (2025), in press.  
doi:10.36227/techrxiv.173337564.48600809/v1  

J. van Gastel, P. Kivisaari, J. Oksanen, E. Vlieg and J.J. Schermer, “Optical analyses of lossy near-field thermophotonic devices with planar and scattering mirrors”, Solar Energy Materials & Solar Cells 282 (2025) 113331, doi: https://doi.org/10.1016/j.solmat.2024.113331 

L.M. van der Krabben, N. Gruginskie, M. van Eerden, J. van Gastel, P. Mulder, G.J. Bauhuis, D. Khusyainov, D. Afanasiev, E. Vlieg, and J.J. Schermer” Reduced Surface Recombination in Extended-Perimeter LEDs toward Electroluminescent Cooling “, ACS APlll. Electron. Mater. 2024, 6, 1483-1492, doi: https://doi.org/10.1021/acsaelm.3c01816 

M. van Eerden, J. van Gastel, G.J. Bauhuis, E. Vlieg and J.J. Schermer, “Theoretical screening of dielectric/metal mirrors for enhanced photon recycling in GaAs solar cells”, Solar Energy Materials & Solar Cells 273 (2024) 112931, doi: https://doi.org/10.1016/j.solmat.2024.112931 [aaltodoc] 

Shahahmadi, S. A. et al. ‘Pushing the limits of non-radiative recombination suppression in GaAs/GaInP light-emitting diodes by doping profile engineering’. Applied Physics Letters 124, (2024), https://doi.org/10.1063/5.0206166. 

Oksanen, J. & Prunnila, M. ‘Thermal management in quantum-dot LEDs through optical thermodynamics’. Joule 7, (2023), https://doi.org/10.1016/j.joule.2023.09.016. 

N. Anttu, V. Dagytė, B. Behaghel, I. Radevici, T. Sadi, P. Kivisaari, and J. Oksanen, “Electro-Optical Coupling in Double Diode Structures,” Phys. Rev. Appl., vol. 19, no. 6, p. 064054, 2023, doi: https://doi.org/10.1103/PhysRevApplied.19.064054 [aaltodoc]

P. Kivisaari and J. Oksanen, “Resonance effects in the radiation transfer of thin-film intracavity devices,” Appl. Phys. Lett., Special Collection “Thermal Radiation at the Nanoscale and Applications”, vol. 121, no. 19, p. 191101, 2022, doi: https://doi.org/10.1063/5.0109763  [aaltodoc]

J. Legendre and P.-O. Chapuis, “Overcoming non-radiative losses in near-field thermophotonics with AlGaAs PIN junctions”, Applied Physics Letters 121, 193902 (2022), doi:https://doi.org/10.1063/5.0116662 [arxiv]

J. Legendre, P.O-. Chapuis, “GaAs-based near-field thermophotonic devices: approaching the idealized case with one-dimensional pn junctions”, Solar Energy Materials and Solar Cells 238, 111594(2022), doi:https://doi.org/10.1016/j.solmat.2022.111594 [arxiv]

T. Sadi, I. Radevici, B. Behaghel, and J. Oksanen, “Prospects and requirements for thermophotonic waste heat energy harvesting,” Solar Energy Materials and Solar Cells, vol. 239, p. 111635, Jun. 2022, doi: 10.1016/j.solmat.2022.111635.  [aaltodoc]

Presentations:

  • Thermal radiation at the nanoscale, electroluminescence, single and dual radiative heat engines, J. Legendre, T. Châtelet, M. Thomas, O. Merchiers, P.-O. Chapuis, Special Session “Advanced Computational Electromagnetics for the Analysis and Design of Nanophotonic Devices” at the 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2024), Toyama, Japan, July 16-19, 2024, ‘Invited presentation’ 
  • An Experimental Study of the Near-Field Behaviour of PIN Junctions, M. Thomas, L. van der Krabben, T. Châtelet, B. Behaghel, I. Radevici, J.J. Schermer, J. Oksanen, and P.-O.Chapuis, 15th World Conference on Thermophotovoltaic Generation of Electricity (TPV-15), Madrid (Spain), October 1-3, 2024, Poster 
  • Designing a near-field thermophotonic device in the planar configuration for energy conversion, W. Sghaier, M. Thomas, K. Kontou, L.M. van der Krabben, N. Gruginskie, J.J. Schermer, and P.-O. Chapuis, 15th World Conference on Thermophotovoltaic Generation of Electricity (TPV-15), Madrid (Spain), October 1-3, 2024, Presentation 
  • Dual radiative heat engines: combining a TPV cell with an active emitter, J. Legendre and P.-O. Chapuis, 15th World Conference on Thermophotovoltaic Generation of Electricity (TPV-15), Madrid (Spain), October 1-3, 2024, Presentation 
  • Near-Field Radiative Heat Transfer Between a Sphere and a Flat Surface Up to High Temperatures and Down to the Sub-100 Nm Regime, M. Thomas and P.-O. Chapuis, 7th ASME International Conference of Micro/Nanoscale Heat and Mass Transfer (NMHMT 2024), Nottingham (UK) August 7-10, 2024, Presentation 
  • Current limitations of near-field thermophotovoltaic devices and some solutions to overcome them, B. Roux, O. Teixidó, C. Lucchesi, J.-P. Perez, D. Chemisana, P.-O. Chapuis, R. Vaillon, 5th International Workshop on Nano-Micro Thermal Radiation (NanoRad 2024), Sapporo (Japan), July 17-19, 2024, ‘Invited presentation’ 
  • Temperature dependence of thermal radiation and electroluminescence in near-field thermophotonic components, W. Sghaier, K. Kontou, T. Châtelet, L.M. van der Krabben, N. Gruginskie, O. Merchiers, J.J. Schermer, and P.-O. Chapuis, 5th International Workshop on Nano-Micro Thermal Radiation (NanoRad 2024), Sapporo (Japan), July 17-19, 2024, Presentation 
  • Operating conditions and thermodynamic bounds of dual radiative heat engines, J. Legendre and P.-O. Chapuis, 5th International Workshop on Nano-Micro Thermal Radiation (NanoRad 2024), Sapporo (Japan), July 17-19, 2024, Presentation 
  • Near-field radiative heat transfer between a sphere and a flat surface in the sub-100 nm regime, M. Thomas, M. Piqueras and P.-O. Chapuis, 5th International Workshop on Nano-Micro Thermal Radiation (NanoRad 2024), Sapporo (Japan), July 17-19, 2024, Presentation 
  • Exploration of the sub-100 nm regime for near-field radiative heat transfer between a sphere and a flat surface, M. Thomas, P.-O. Chapuis, Nanoscale and Microscale Heat Transfer VIII (NMHT 2024), June 3-June 8, 2024, Girona (Spain), Presentation 
  • Thermophotonic energy harvesting: towards a narrowband LED emission?, J. Legendre, P.-O. Chapuis, Symposium SF05: Infrared materials and devices for thermal radiation control, MRS Fall Symposium, November 28-December 2, 2023, Boston (USA), Presentation 
  • Near-field thermophotonic energy harvesting from heterostructure-based devices with bandgaps in the near-infrared range, J. Legendre and P.-O. Chapuis, 30th Condensed Matter Division conference of the European Physical Society (CMD30-Fismat2023), September 4-8, 2023, Milan (Italy), Presentation 
  • Near-field radiative heat transfer between a sphere and a flat surface in the sub-200 nm regime and prospects for energy harvesting, M. Thomas, C. Acosta, P.-O. Chapuis, Trends in Nanotechnologies (TNT), Villeurbanne, August 28-September 1, 2023, Presentation 
  • Operating conditions and thermodynamic bounds of dual radiative engines, J. Legendre, P.O. Chapuis, Sadi-Carnot’s legacy – Celebrating the 200th anniversary of thermodynamics, Palaiseau, September 16-18, 2025, Poster 
  • Design of a near-field thermophotonic device in the planar configuration for energy harvesting and refrigeration, W. Sghaier, J. Legendre, L.M. van der Krabben, N. Gruginskie, J.J. Schermer, P.-O. Chapuis, Thermal Radiation to Electrical Energy conversion (TREE) workshop, Nantes, October 12-14, 2023, Work-in-progress presentation 
  • M. Thomas, P.-O. Chapuis, Near-Field Radiative Heat Transfer Between a Sphere and a Flat Surface in the Sub-200 nm Regime and Prospects for Energy Harvesting, Thermal Radiation to Electrical Energy conversion (TREE) workshop, Nantes, October 12-14, 2023, Work-in-progress presentation 
  • Thermophotonic energy harvesters: thermodynamic analysis and near-field performances of 1D architectures, J. Legendre, P.-O. Chapuis, Thermal Radiation to Electrical Energy conversion (TREE) workshop, Nantes, October 12-14, 2023, Presentation 
  • Optoelectronics Global Conference, symposium “Optoelectronic Devices and Applications”: Resonance effects in the radiation transfer of thermophotonic intracavity devices, P. Kivisaari et al. (invited talk, remote) 
  • Euro Nano Forum 2023, Lund, Sweden “Quantum Technologies is Novel Microelectronics” Mika Prunnila (keynote) 
  • Thermal Radiation, Electroluminescence and Heat Engines in the Near Field, J. Legendre, T. Châtelet, M. Thomas, C. Lucchesi, O. Merchiers, R. Vaillon, and P.-O. Chapuis, Focus Session «Casimir Effect and Radiative Heat Transfer», Progress In Electromagnetrics Symposium (PIERS) 2023, Prague (Czech Republic), July 3-6, 2023  
  • Near-field thermal radiation, thermophotovoltaics and polaritons, P.-O. Chapuis et al., Thermal Polaritonics Workshop, April 5-7, 2023, The University of Tokyo, ‘Invited presentation’ 
  • Near-field radiative heat transfer in thermophotovoltaics and thermophotonics, C. Lucchesi, J. Legendre, M. Thomas, M. Piqueras, D. Cakiroglu, J.P. Perez, T.Taliercio, E. Tournié, R. Vaillon, P.-O. Chapuis, 745th WE-Heraeus-Seminar “Photon, Phonon, and Electron Transitions in Coupled Nanoscale Systems”, Bad Honnef (Germany), Sept. 19-23, 2022, ‘Invited presentation’ 
  • Controlling near-field thermal energy for energy-conversion devices and sensing, P.-O. Chapuis et al., Program on Emerging Regimes and Implications of Quantum and Thermal Fluctuational Electrodynamics (Flectro2022), Kavli Institute of Theoretical Physics (KITP), UC Santa Barbara (USA), July 31, 2022, ‘Invited presentation’ 
  • Thermophotonic energy harvesting: towards a narrowband LED emission?, J. Legendre, P.-O. Chapuis, Symposium SF05: Infrared materials and devices for thermal radiation control, MRS Fall Symposium, November 28-December 2, Boston (USA), Presentation 
  •  Near-field thermophotonic energy harvesting from heterostructure-based devices with bandgaps in the near-infrared range, J. Legendre and P.-O. Chapuis, 30th Condensed Matter Division conference of the European Physical Society (CMD30-Fismat2023), September 4-8, 2023, Milan (Italy), Presentation 
  • Near-field radiative heat transfer between a sphere and a flat surface in the sub-200 nm regime and prospects for energy harvesting, M. Thomas, C. Acosta, P.-O. Chapuis, Trends in Nanotechnologies (TNT), Villeurbanne, August 28-September 1, 2023, Presentation 
  • Low Bandgap (Near-Field) TPVs: Materials and Structures, R. Vaillon, C. Lucchesi, P.O. Chapuis et al., 14th Conference on Thermophotovoltaic Generation of Electricity (TPV-14), May 31-June 2, 2023, online (organized by Univ. Michigan), ‘Keynote presentation’ 
  • Impact of roughness on the energy harvesting in thermophotonic devices, T. Châtelet, W. Sghaier, J. Legendre, P.-O. Chapuis and O. Merchiers, 14th Conference on Thermophotovoltaic Generation of Electricity (TPV-14), May 31-June 2, 2023, online (organized by Univ. Michigan), Presentation 
  • Thermophotovoltaics vs thermophotonics: physics and performance of III-V heterostructures in the near field, J. Legendre, P.-O. Chapuis, 14th Conference on Thermophotovoltaic Generation of Electricity (TPV-14), May 31-June 2, 2023, online (organized by Univ. Michigan), Presentation 
  • Comparing near-field thermal radiation of different materials including III-V semiconductors, M. Thomas, C. Lucchesi, J. Legendre, N. Gruginski, R. Vaillon, P.-O. Chapuis, MRS Spring Meeting Symposium “Emerging Thermal Materials—From Nanoscale Heat Transport, Devices and Applications, to Theories”, San Francisco (USA), April 10-14, 2023, Presentation 
  •  Near-field radiative enhancements: benefits and drawbacks for thermophotonic energy harvesting, J. Legendre and P.O. Chapuis, MRS Spring Meeting Symposium “Emerging Thermal Materials—From Nanoscale Heat Transport, Devices and Applications, to Theories”, San Francisco (USA), April 10-14, 2023, Presentation (remote) 
  • Thermodynamics of AlGaAs near-field thermophotonic devices for energy harvesting and cooling purposes, J. Legendre, T. Châtelet, O. Merchiers, P.-O. Chapuis, Symposium on ‘Photonic Heat Engines: Science and Applications V’, SPIE Photonics West, San Francisco (USA), January 28-February 2, 2023, Presentation 
  • A study of AlGaAs PIN homojunctions for near-field thermophotonic applications, J. Legendre and P.O. Chapuis, Symposium on ‘Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII’, SPIE Photonics West, San Francisco (USA), January 28-February 2, 2023, Presentation 
  • Solid-state/optical alternatives to thermoelectricity for thermal-to-electrical energy conversion, C. Lucchesi, J. Legendre, D. Cakiroglu, J-P. Perez, T. Taliercio, E. Tournié, R. Vaillon, P.-O. Chapuis, 18th European Conference on Thermoelectrics (ECT), Barcelona (Spain), Septembre 2020 then replanned on September 13-16, 2022, ‘Oral presentation’ 
  • A study of AlGaAs PN junctions based near-field thermophotonic devices, J. Legendre, P.-O. Chapuis, Eurotherm 114: Nanoscale and Microscale Heat Transfer VII, expected to take place in Palermo (Italy) in 2020, moved to May 29-June 3, 2022, Poster 
  • Temperature dependence of near-field radiative heat transfer, C. Lucchesi, M. Thomas, R. Vaillon, P-O. Chapuis, Eurotherm 114: Nanoscale and Microscale Heat Transfer VII, expected to take place in Palermo (Italy) in 2020, moved to May 29-June 3, 2022, Poster 
  • Near-field thermophotonic devices with AlGaAs emitters and cells, J. Legendre and P.-O. Chapuis, TPV-13 (13th world conference on thermophotovoltaics generation of electricity), Miyazaki (Japan) and online, April 25-27, 2022, Presentation 
  • Temperature dependence of thermal radiation and impact on near-field thermophotovoltaic devices, C. Lucchesi, J. Legendre, R. Vaillon and P.-O. Chapuis, TPV-13 (13th world conference on thermophotovoltaics generation of electricity), Miyazaki (Japan) and online, April 25-27, 2022