Corpus ID: 235458140

Comprehensive analysis of optimized near-field tandem thermophotovoltaic system

  title={Comprehensive analysis of optimized near-field tandem thermophotovoltaic system},
  author={Jaeman Song and Min Choi and Mikyung Lim and Jungchul Lee and Bong Jae Lee},
It is well known that performance of a thermophotovoltaic (TPV) device can be enhanced if the vacuum gap between the thermal emitter and the TPV cell becomes nanoscale due to the photon tunneling of evanescent waves. Having multiple bandgaps, multi-junction TPV cells have received attention as an alternative way to improve its performance by selectively absorbing the spectral radiation in each subcell. In this work, we comprehensively analyze the optimized nearfield tandem TPV system consisting… Expand

Figures and Tables from this paper


Optimization of a near-field thermophotovoltaic system operating at low temperature and large vacuum gap
Abstract The present work successfully achieves a strong enhancement in performance of a near-field thermophotovoltaic (TPV) system operating at low temperature and large-vacuum-gap width byExpand
Performance of Near-Field Thermophotovoltaic Cells Enhanced With a Backside Reflector
Thermophotovoltaic (TPV) systems are very promising for waste heat recovery. This work analyzes the performance of a near-field TPV device with a gold reflecting layer on the backside of the cell.Expand
Performance analysis of near-field thermophotovoltaic system with 2D grating tungsten radiator
Abstract The effect of hyperbolic modes on near-field thermophotovoltaic (TPV) system performance is investigated by implementing a hyperbolic metamaterial (HMM) radiator. Specifically, theExpand
Thermal Impacts on the Performance of Nanoscale-Gap Thermophotovoltaic Power Generators
The thermal impacts on the performance of nanoscale-gap thermophotovoltaic (nano-TPV) power generators are investigated using a coupled near-field thermal radiation, charge, and heat transportExpand
Performance Analysis of a Near-Field Thermophotovoltaic Device with a Metallodielectric Selective Emitter and Electrical Contacts for the Photovoltaic Cell
A near-field thermophotovoltaic (TPV) system with a multilayer emitter of alternate tungsten and alumina layer is proposed in this paper. The fluctuational electrodynamics along with the dyadic GreenExpand
Performance analysis of near-field thermophotovoltaic devices considering absorption distribution
This paper elucidates the energy transfer and conversion processes in near-field thermophotovoltaic (TPV) systems, considering local radiation absorption and photocurrent generation in the TPV cell.Expand
Broadening near-field emission performance enhancement in thermophotovoltaics.
It is proved theoretically that such a notion is only accurate under idealized conditions, and shown that when non-radiative recombination is taken into account, efficiency improvement can be achieved by broadening the emission spectrum, due to an enhancement in the open-circuit voltage. Expand
Enhanced thermal radiation conversion in a GaSb/GaInAsSb tandem thermophotovoltaic cell
Abstract Beyond the ideal detailed balance evaluation, layer-dependent thermal radiation conversion has been systematically investigated here for tandem device consisting of a GaSb top subcell and aExpand
Thin-film ‘Thermal Well’ Emitters and Absorbers for High-Efficiency Thermophotovoltaics
The proposed design approach does not require nanoscale patterning of the emitter and PV cell surfaces, but instead offers a simple low-cost solution to improve the performance of thermophotovoltaic systems. Expand
One-Chip Near-Field Thermophotovoltaic Device Integrating a Thin-Film Thermal Emitter and Photovoltaic Cell.
A one-chip near-field TPV device consisting of a thin-film Si emitter and InGaAs PV cell with an intermediate Si substrate that enables the suppression of the heat transfer due to sub-bandgap radiation by free carriers and surface modes is demonstrated. Expand