Doctor of Philosophy, Mechanical Engineering, 2017-2021
Massachusetts Institute of Technology, Cambridge, MA
Thesis: Polyethylene aerogels for passive radiative cooling
Minor: Economics for Engineering                                     
Advisor: Prof. Evelyn N. Wang                                     

Master of Science, Mechanical Engineering, 2015-2017
Massachusetts Institute of Technology, Cambridge, MA
Thesis: High performance incandescent light bulbs
Advisor: Prof. Evelyn N. Wang

Bachelor of Science in Engineering, Mechanical Engineering, 2011-2015
Polytechnique Montréal, Montreal, Canada



Entrepreneurship, 2021-Present
Boreas, Cambridge, MA

  • Developed a pitch deck for the commercialization of rooftop hybrid evaporative and radiative cooling panels for supermarkets and data centers air conditioning as part of The Engine Blueprint program
  • Interviewed over 15 industry customers to investigate challenges in data centers building cooling as part of the regional NSF I-CORPS Spark program

Research Specialist Limited, 2021-Present
Massachusetts Institute of Technology, Cambridge, MA

    • Leading modeling, design, fabrication, and integration of a high-temperature (650 °C) catalytic micro combustor and thermoelectric generators inside a portable (<2.5 kg; <1.5 L) atmospheric water extractor eventually capable of harvesting >5.5 L of water per day in low humidity environments

    Research Assistant - Radiative Cooling, 2017-Present
    Massachusetts Institute of Technology, Cambridge, MA

    • Developed and optimized low density (15 kg/m³), low thermal conductivity (0.028 W/mK) and optically selective (92% solar reflectance and 80% infrared transmittance) polyethylene aerogels for radiative cooling
    • Demonstrated experimentally passive cooling up to 13 °C below ambient and cooling power at ambient temperature of 96 W/m² under direct sunlight using optimized polyethylene aerogels
    • Fabricated polyethylene aerogels using CO2 critical point drying, characterized optical properties using FTIR and UV-VIS and measured thermal conductivity using custom built guarded hot plate thermal conductivity setup

    Research Assistant - Incandescent Lighting, 2015-2017
    Massachusetts Institute of Technology, Cambridge, MA

    • Proposed and demonstrated selective emitters for incandescent light bulbs, yielding energy savings of up to 67% over traditional incandescent light bulbs
    • Developed specular side reflectors to use between the incandescent filament and the infrared filter in incandescent light bulbs, providing a further 10% in energy savings

    Brake system lead, 2014-2015
    Electric Formula SAE Team of Polytechnique Montréal, Montreal, Canada

    • Managed orders, manufacturing of parts and raised >$2000 in sponsorships
    • Implemented a brake bias system and actively participated in the design and fabrication of the 2015 car, winning third place at Formula SAE Electric 2015 competition

    Engineering Intern, 2013
    Solénove Énergie Québec, Montreal, Canada

    • Provided technical support to sales managers and commercial customers
    • Developed solutions for implementing heat exchangers recovery systems of greywater in buildings considering the physical and regulatory constraints

    Undergraduate Research Intern, 2012-2013
    Polytechnique Montréal, Montreal, Canada

    • Designed, built and calibrated thermopiles for measuring temperature differences in lab-scale geothermal boreholes fluid loops, reducing uncertainty by 80% over traditional thermocouples
    • Redesigned and performed experiments to study the influence of a geothermal U-tube borehole geometry on the angular temperature distribution in the ground



    Material Research Society Best Poster Award Nominee, 2019
    Material Research Society Best Poster Award Nominee, 2018
    MIT Mechanical Engineering Research Exhibition Highest Impact Work, 2017
    Fond de Recherche Nature et Technologies Master of Science Scholarship, 2015-2017
    Polytechnique Montreal ASHRAE Student of the Year, 2014
    Polytechnique Montreal Foundation 78th Promotion's Scholarship, 2013
    Polytechnique Montreal Foundation Scholarship of Excellence Yves-Chèvrefils, 2013
    Ministère de l'Éducation et de l'Enseignement supérieur Mobility Award, 2013
    Polytechnique Montreal Introduction to Research Awards, 2012-2013
    Natural Science and Engineering Research Council of Canada Undergraduate
    Student Research Award, 2012
    Polytechnique CEO Foundation Scholarship of Excellence, 2011



    Undergraduate Research Opportunities Program (UROP), 2020-Present
    Massachusetts Institute of Technology, Cambridge, MA

    • Mentoring an undergraduate student throughout the Spring semester
    • Helping develop a theoretical model for predicting the thermal conductivity of polyethylene aerogels of various densities filled with different gases

    MIT Summer Research Program (MSRP), 2019
    Massachusetts Institute of Technology, Cambridge, MA

    • Mentored an undergraduate student throughout a nine-week program
    • Helped characterize thermal conductivity of silica aerogels and fabricate ZnS doped polyethylene aerogels to increase optical selectivity



    1. Leroy, A.,* Lu, Z.,* et al. “Hybrid evaporative-radiative cooling architecture for large energy savings” (submitted)
    2. Leroy, A., et al. “ZnS pigmented polyethylene aerogel covers for daytime radiative cooling” (submitted)
    3. Leroy, A., et al. “Thermal transport in solar-reflecting and infrared-transparent polyethylene aerogels” (submitted)
    4. Leroy, A., et al. "High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel." Science advances 5.10 (2019): eaat9480.
    5. Leroy, A., et al. "Specular side reflectors for high efficiency thermal-to-optical energy conversion." Optics Express 26.10 (2018): A462-A479.
    6. Leroy, A., et al. "Combined selective emitter and filter for high performance incandescent lighting." Applied Physics Letters 111.9 (2017): 094103.
    7. Leroy, A. & Bernier, M. “Development of a novel spiral coil ground heat exchanger model considering axial effects”. Applied Thermal Engineering, 84 (2015), 409-419.
    8. Bhatia, B., Leroy, A., et al. "Passive directional sub-ambient daytime radiative cooling." Nature communications 9.1 (2018): 1-8.
    9. Mirvakili, M. S., Leroy, A., et al. "Solar‐Driven Soft Robots." Advanced Science (2021): 2004235.
    10. Zhao, L., Bhatia, B., Zhang, L., Strobach, E., Leroy, A., et al. "A Passive High-Temperature High-Pressure Solar Steam Generator for Medical Sterilization." Joule 4.12 (2020): 2733-2745.
    11. LaPotin, A., Zhong, Y., Zhang, L., Zhao, L., Leroy, A., et al. "Dual-Stage Atmospheric Water Harvesting Device for Scalable Solar-Driven Water Production." Joule 5.1 (2021): 166-182.
    12. Zhao, L., Strobach, E., Bhatia, B., Yang, S., Leroy, A., et al. "Theoretical and experimental investigation of haze in transparent aerogels." Optics Express 27.4 (2019): A39-A50.
    13. Zhao, L., Blackman, M., Zhang, L., Bhatia, B., Leroy, A., et al. "Plasmonic absorption-induced haze suppression in random scattering media." Applied Physics Letters 114.25 (2019): 251102.



    1.  A. Leroy, et al., High-Performance Sub-Ambient Radiative Cooling Enabled by Optically Selective and Thermally Insulating Polyethylene Aerogel. Provisional Patent Application Serial No.: 62/927,592, October 29, 2019
    2. M. Soljacic, E.N. Wang, Y. Shen, B. Bhatia, A. Leroy, Passive radiative cooling during the day. US 2020/002568 A1, United States Patent and Trademark Office, January 23, 2020
    3. Wang, E., Zhao, L., Bhatia, B., Li, X., Leroy, A., et al. “Devices and Methods for Fabrication of Components of a Multiscale Porous High-Temperature Heat Exchanger” Provisional Patent Application No. 63/166,973, Filing date: 03/27/2021



    1. “System provides cooling with no electricity,” D.L. Chandler, MIT News, October 30, 2019.  Link 
    2. “New material cools surfaces without energy consumption,” G. Roos, Electronic Products Magazine, November 14, 2019. Link
    3. “A new way to provide cooling without power,” D.L. Chandler, MIT News, November 28, 2018. Link



    1. A. Leroy, et al., Optimizing Optical and Thermal Properties of Polyethylene Aerogels for Radiative Cooling, MRS Fall Meeting, Boston, MA, December 1-6, 2019
    2. A. Leroy, et al., Radiative Cooling Using Polyethylene Aerogels, Mechanical Engineering Research Exhibition, Cambridge, MA, October 11, 2019
    3. A. Leroy, et al., Infrared-Transparent Thermally-Insulating Polyethylene Aerogels for Radiative Cooling, MRS Fall Meeting, Boston, MA, November 25-30, 2018
    4. B. Bhatia, A. Leroy, et al., Passive Sub-ambient​ Daytime Radiative Cooling​. Primer workshop en nuevas tecnologías híbridas de conversión de energía solar y térmica: ​ Desafíos para un desarrollo sustentable, Santiago, Chile, September 27-28, 2018
    5. A. Leroy, et al., High performance incandescent light bulb, Mechanical Engineering Research Exhibition, Cambridge, MA, September 20, 2017
    6. A. Leroy, et al., High performance incandescent light bulb using a selective emitter​ and nanophotonic filters​, SPIE Optics + Photonics, San Diego, CA, August 6-10, 2017
    7. A. Leroy, et al., High performance incandescent light bulb, Gordon Research Conference on Physics and Devices for Solar Electricity and Energy Storage, Hong Kong, China, July 17-22, 2016