Parametric design criteria of an updated thermoradiative cell operating at optimal states

Zhang, Xin; Peng, Wanli; Lin, Jian; Chen, Xiaohang; Chen, Jincan

doi:10.1063/1.4998002

Cited by 39 publications

(15 citation statements)

References 26 publications

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“…The physical principles governing TR cells are similar to those behind conventional photovoltaics. ,− When a p – n junction is in thermal equilibrium with its surroundings in the dark (Figure a), the random absorption of photons by the cell equals the random emission from the cell, and the Fermi level remains constant throughout the semiconductor. Under illumination and normal PV cell operation (Figure b), absorption is greater than emission, and this difference generates photocurrent.…”

Section: Thermoradiative Photovoltaicsmentioning

confidence: 99%

Nighttime Photovoltaic Cells: Electrical Power Generation by Optically Coupling with Deep Space

Deppe

Munday

2019

ACS Photonics

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Photovoltaics possess significant potential due to the abundance of solar power incident on earth; however, they can only generate electricity during daylight hours. In order to produce electrical power after the sun has set, we consider an alternative photovoltaic concept that uses the earth as a heat source and the night sky as a heat sink, resulting in a "nighttime photovoltaic cell" that employs thermoradiative photovoltaics and concepts from the advancing field of radiative cooling. In this Perspective, we discuss the principles of thermoradiative photovoltaics, the theoretical limits of applying this concept to coupling with deep space, the potential of advanced radiative cooling techniques to enhance their performance, and a discussion of the practical limits, scalability, and integrability of this nighttime photovoltaic concept.

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Section: Thermoradiative Photovoltaicsmentioning

confidence: 99%

Nighttime Photovoltaic Cells: Electrical Power Generation by Optically Coupling with Deep Space

Deppe

Munday

2019

ACS Photonics

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“…Therefore, a new system is needed to generate electricity at night. In this case, thermoradiative (TR) cells may play an essential role [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…The (TR) cells operate similarly to the photovoltaic (PV) cells; they generate energy by transferring radiative heat between two reservoirs with varying temperatures [1,[3][4][5][6][7][8][9][10][11][12][13][14][15]. The fundamental difference is that the PV cells generate the electric current kept at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Application of the detailed balance model to thermoradiative cells based on a p-type two-dimensional indium selenide semiconductor

Hanna

Nugraha²,

Majidi

2022

Sinergi

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Thermoradiative (TR) cells are energy conversion devices that convert low-temperature waste heat to electricity. TR cells work on the same principles as photovoltaics, but they produce a reverse bias voltage due to higher cell temperature than the environment temperature. Depending on the energy gap of the material, temperature difference would generate electrical energy by electron-hole pair recombination. In this work, we propose a two-dimensional (2D) InSe for applications in the TR cells. The electronic properties of 2D InSe are obtained by using first-principles calculations. Then, the calculated energy gap is used to estimate output power density and efficiency according to the Shockley-Queisser framework through a detailed balance model adapted with the TR cells. Using a heat source at = 1000 K and the ambient temperature = 300 K, an ideal TR cell of 2D InSe at the maximum power point can achieve output power density and efficiency up to 0.061 W/m2 and 4.41%, respectively, with an energy gap of 1.43 eV. However, sub-bandgap and non-radiative losses will degenerate the cell's performance significantly.

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“…1(e). TR cells were only proposed in 2014 [17], but they have been investigated by a number of researchers [18][19][20][21][22] and also could reach high conversion efficiencies.…”

Section: Introductionmentioning

confidence: 99%

Coupled Charge and Radiation Transport Processes in Thermophotovoltaic and Thermoradiative Cells

et al. 2021

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Accurate modeling of charge transport and both thermal and luminescent radiation is crucial to the understanding and design of radiative thermal energy converters. Charge carrier dynamics in semiconductors are well-described by the Poisson-driftdiffusion equations, and thermal radiation in emitter/absorber structures can be computed using multilayer fluctuational electrodynamics. These two types of energy flows interact through radiation absorption/luminescence and charge carrier generation/recombination. However, past research has typically only assumed limited interaction, with thermal radiation absorption as an input for charge carrier models to predict device performance. To examine this assumption, we develop a fully-coupled iterative model of charge and radiation transport in semiconductor devices, and we use our model to analyze near-field and far-field GaSb thermophotovoltaic and thermoradiative systems. By comparing our results to past methods that do not consider cross-influences between charge and radiation transport, we find that a fully-coupled approach is necessary to accurately model photon recycling and near-field enhancement of external luminescence. Because these effects can substantially alter device performance, our modeling approach can aid in the design of efficient thermophotovoltaic and thermoradiative systems.

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Parametric design criteria of an updated thermoradiative cell operating at optimal states

Cited by 39 publications

References 26 publications

Nighttime Photovoltaic Cells: Electrical Power Generation by Optically Coupling with Deep Space

Nighttime Photovoltaic Cells: Electrical Power Generation by Optically Coupling with Deep Space

Application of the detailed balance model to thermoradiative cells based on a p-type two-dimensional indium selenide semiconductor

Coupled Charge and Radiation Transport Processes in Thermophotovoltaic and Thermoradiative Cells

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