Publications


Thermally Induced Restructuring of Pd@CeO2 and Pd@SiO2 Nanoparticles as a Strategy for Enhancing Low-Temperature Catalytic Activity

A.J. Hill, C. Y. Seo, X. Chen, A. Bhat, G. B. Fisher, A. Lenert*, J. W. Schwank*. ACS Catalysis, 2019.

This work, led by Alex Hill, in collaboration with Johannes Schwank, investigates how core@shell catalysts can favorably restructure at elevated temperatures, producing highly active catalytic sites.


Design of thermophotovoltaics for tolerance of parasitic absorption

V. K. Raman, T. Burger, and A. Lenert. Optics Express, 2019.

This work suggests a way to minimize the gap between lab and prototype efficiencies of TPV systems by making them more tolerant of parasitic absorption.

 


Thermal photonics in energy

A. Lenert, Y. Zheng, S. Shen. Journal of Photonics for Energy, 2019.

This guest editorial introduces the special issue and highlights recent developments in the field.

 


Effects of narrowband transport on near-field and far-field thermophotonic conversion

S. McSherry, T. Burger, and A. Lenert.  Journal of Photonics for Energy, 2019.

This work, led by Sean McSherry, looks at how near-field electroluminescence enhances the energy flux in solid-state heat engines and which heat engines benefit from near-monochromatic emission. 

 


Thin-film architectures with high spectral selectivity for thermophotovoltaic cells

T. Burger, D. Fan, K. Lee, S.R. Forrest, A. Lenert. ACS Photonics, 2018.

This work, led by Tobias Burger, in collaboration with Stephen Forrest’s group, proposes strategies for enhancing the spectral selectivity of thin-film III-V thermophotovoltaic cells and evaluates their impact on efficiency.


Optical and thermal filtering nanoporous materials for sub-ambient radiative cooling

H. Kim, A. Lenert. Journal of Optics, 2018.

This paper, led by Hannah Kim, proposes a new approach for radiative cooling to low temperatures using infrared-transparent nanoporous materials, and develops a model for evaluating various structures and material compositions. *special issue on new materials for nanophotonics


Radiative thermal runaway due to negative differential thermal emission across a solid-solid phase transition

D.M. Bierman, A. Lenert, M.A. Kats, Y. Zhou, S. Zhang, M. De La Ossa, S. Ramanathan, F. Capasso, E.N. Wang. Physical Review Applied, 2018.

This paper, by Andrej Lenert and colleagues at MIT, Harvard, Purdue, and U-Wisconsin, describes a radiative thermal runaway phenomenon observed due to a VO2 solid phase transition. *Highlighted by PR Applied: Editor’s Suggestions


Optically transparent thermally insulating silica aerogels for solar thermal insulation

A.A. Gunay, H. Kim, N. Nagarajan, M. Lopez, R. Kantharaj, A. Alsaati, A. Marconnet, A. Lenert, N. Miljkovic.  ACS Applied Materials and Interfaces, 10 (15), p. 12603–12611, 2018.

This paper, co-authored by Hannah Kim, looks at the effects of hydrophobicity of transparent aerogels on solar thermal energy conversion.


Temperature dependence of thermopower in molecular junctions.

Y. Kim, A. Lenert, E. Meyhofer, P. Reddy.  Applied Physics Letters, 109, p. 033102, 2016. 
*Highlighted by APL: Editor’s Pick

 


Enhanced photovoltaic energy conversion using thermally-based spectral shaping

D.M. Bierman, A. Lenert, W.R. Chan, B. Bhatia, I. Celanović, M. Soljačić, E.N. Wang.  Nature Energy, 1(6), p. 16068, 2016.
*Selected by MIT Tech Review: 10 Breakthrough Technologies of 2017The Biggest Clean Energy Advances in 2016

 


Spectral splitting optimization for high-efficiency solar photovoltaic and thermal power generation.

D.M. Bierman, A. Lenert, E.N. Wang. Applied Physics Letters, 109 (24), 243904, 2016.