Utilizing hot electrons

AJ Nozik - Nature Energy, 2018 - nature.com
In current solar cells, any photon energy exceeding the semiconductor bandgap is lost
before being collected, limiting the cell performance. Hot carrier solar cells could avoid these …

Exceeding the Shockley–Queisser limit in solar energy conversion

CA Nelson, NR Monahan, XY Zhu - Energy & Environmental Science, 2013 - pubs.rsc.org
We summarize our recent explorations of photophysical mechanisms that may be utilized in
solar cells with power conversion efficiency theoretically exceeding the Shockley–Queisser …

Pushing to the limit: radiative efficiencies of recent mainstream and emerging solar cells

MA Green, AWY Ho-Baillie - ACS Energy Letters, 2019 - ACS Publications
Solar cells absorb sunlight photons by promoting electrons within the cell from ground to
excited states, from where most are extracted as electrical current between cell terminals …

[HTML][HTML] New strategies for solar cells beyond the visible spectral range

F Marangi, M Lombardo, A Villa, F Scotognella - Optical Materials: X, 2021 - Elsevier
The endeavor of the scientific community to maximize the possibility to harvest Sun
irradiation for energy production is mainly devoted to the improvement of the power …

Reversible electron–hole separation in a hot carrier solar cell

S Limpert, S Bremner, H Linke - New Journal of Physics, 2015 - iopscience.iop.org
Hot-carrier solar cells are envisioned to utilize energyfiltering to extract power from
photogenerated electron–hole pairs before they thermalize with the lattice, and thus …

Practical factors lowering conversion efficiency of hot carrier solar cells

Y Takeda, T Motohiro, D König, P Aliberti… - Applied physics …, 2010 - iopscience.iop.org
We have evaluated the influence of practical factors on the conversion efficiency of hot
carrier solar cells, from which photogenerated carriers are extracted before being completely …

Requisites for highly efficient hot-carrier solar cells

Y Takeda - Quantum Dot Solar Cells, 2013 - Springer
We have constructed new models based on detailed balance of particle and energy fluxes to
clarify the operating principle of hot-carrier solar cells (HC-SCs) and find the requisites for …

In search of a true hot carrier solar cell

DK Ferry - Semiconductor Science and Technology, 2019 - iopscience.iop.org
Several decades ago, it was proposed that one could improve the single junction solar cell
by the concentration of effort onto the hot carriers. In the intervening years, no significant …

Quantitative experimental assessment of hot carrier-enhanced solar cells at room temperature

DT Nguyen, L Lombez, F Gibelli, S Boyer-Richard… - Nature Energy, 2018 - nature.com
In common photovoltaic devices, the part of the incident energy above the absorption
threshold quickly ends up as heat, which limits their maximum achievable efficiency to far …

A hot-electron thermophotonic solar cell demonstrated by thermal up-conversion of sub-bandgap photons

DJ Farrell, H Sodabanlu, Y Wang, M Sugiyama… - Nature …, 2015 - nature.com
The direct conversion of solar energy to electricity can be broadly separated into two main
categories: photovoltaics and thermal photovoltaics, where the former utilizes gradients in …