Near-field thermophotovoltaic (NFTPV) devices have received much attention lately as an alternative energy harvesting system, whereby a heated emitter exchanges super-Planckian thermal radiation with a photovoltaic (PV) cell to generate electricity. This work describes the use of a grating structure to enhance the power throughput of NFTPV devices, while increasing the energy conversion efficiency by ensuring that a large portion of the radiation entering the PV cell is above the band gap. The device contains a high-temperature tungsten grating that radiates photons to a room-temperature In0.18Ga0.82Sb PV cell through a vacuum gap of several tens of nanometers. Scattering theory is used along with the rigorous coupled-wave analysis (RCWA) to calculate the radiation energy exchange between the grating emitter and the TPV cell. A parametric study is performed by varying the grating depth, period, and ridge width in the range that can be fabricated using available fabrication technologies. It is found that the power output can be increased by 40% while improving the efficiency from 29.9% to 32.0% with a selected grating emitter as compared to the case of a flat tungsten emitter. Reasons for the enhancement are found to be due to the enhanced energy transmission coefficient close to the band gap. This work shows a possible way of improving NFTPV and sheds light on how grating structures interact with thermal radiation at the nanoscale.
Issue Section:
Radiative Heat Transfer
References
1.
Zhang
, Z. M.
, 2007
, Nano/Microscale Heat Transfer
, McGraw-Hill
, New York
.2.
Xuan
, Y.
, 2014
, “An Overview of Micro/Nanoscaled Thermal Radiation and Its Applications
,” Photonics Nanostruct. Fundam. Appl.
, 12
(2
), pp. 93
–113
.3.
Liu
, X. L.
, Wang
, L. P.
, and Zhang
, Z. M.
, 2015
, “Near-Field Thermal Radiation: Recent Progress and Outlook
,” Nanoscale Microscale Thermophys. Eng.
, 19
(2
), pp. 98
–126
.4.
Cahill
, D. G.
, Braun
, P. V.
, Chen
, G.
, Clarke
, D. R.
, Fan
, S.
, Goodson
, K. E.
, Keblinski
, P.
, King
, W. P.
, Mahan
, G. D.
, Majumdar
, A.
, Maris
, H. J.
, Phillpot
, S. R.
, Pop
, E.
, and Shi
, L.
, 2014
, “Nanoscale Thermal Transport: II. 2003–2012
,” Appl. Phys. Rev.
, 1
(1
), p. 011305
.5.
Biehs
, S.-A.
, Ben-Abdallah
, P.
, and Rosa
, F. S.
, 2012
, “Nanoscale Radiative Heat Transfer and Its Applications
,” Infrared Radiation
, V.
Morozhenko
, ed., InTech
, Rijeka, Croatia
, Chap. 1.6.
Rytov
, S. M.
, Kravtsov
, Y. A.
, and Tatarskii
, V. I.
, 1989
, Principles of Statistical Radiophysics
, Springer
, New York
.7.
Kittel
, A.
, Muller-Hirsch
, W.
, Parisi
, J.
, Biehs
, S.-A.
, Reddig
, D.
, and Holthaus
, M.
, 2005
, “Near-Field Heat Transfer in a Scanning Thermal Microscope
,” Phys. Rev. Lett.
, 95
(22
), p. 224301
.8.
Rousseau
, E.
, Siria
, A.
, Jourdan
, G.
, Volz
, S.
, Comin
, F.
, Chevrier
, J.
, and Greffet
, J.-J.
, 2009
, “Radiative Heat Transfer at the Nanoscale
,” Nat. Photonics
, 3
(9
), pp. 514
–517
.9.
Shen
, S.
, Narayanaswamy
, A.
, and Chen
, G.
, 2009
, “Surface Phonon Polaritons Mediated Energy Transfer Between Nanoscale Gaps
,” Nano Lett.
, 9
(8
), pp. 2909
–2913
.10.
Song
, B.
, Ganjeh
, Y.
, Sadat
, S.
, Thompson
, D.
, Fiorino
, A.
, Fernández-Hurtado
, V.
, Feist
, J.
, Garcia-Vidal
, F. J.
, Cuevas
, J. C.
, Reddy
, P.
, and Meyhofer
, E.
, 2015
, “Enhancement of Near-Field Radiative Heat Transfer Using Polar Dielectric Thin Films
,” Nat. Nanotechnol.
, 10
(3
), pp. 253
–258
.11.
St-Gelais
, R.
, Guha
, B.
, Zhu
, L.
, Fan
, S.
, and Lipson
, M.
, 2014
, “Demonstration of Strong Near-Field Radiative Heat Transfer Between Integrated Nanostructures
,” Nano Lett.
, 14
(12
), pp. 6971
–6975
.12.
Lim
, M.
, Lee
, S. S.
, and Lee
, B. J.
, 2015
, “Near-Field Thermal Radiation Between Doped Silicon Plates at Nanoscale Gaps
,” Phys. Rev. B
, 91
(19
), p. 195136
.13.
Basu
, S.
, Chen
, Y.-B.
, and Zhang
, Z. M.
, 2007
, “Microscale Radiation in Thermophotovoltaic Devices: A Review
,” Int. J. Energy Res.
, 31
(6–7), pp. 689
–716
.14.
Park
, K.
, Basu
, S.
, King
, W. P.
, and Zhang
, Z. M.
, 2008
, “Performance Analysis of Near-Field Thermophotovoltaic Devices Considering Absorption Distribution
,” J. Quant. Spectrosc. Radiat. Transfer
, 109
(2
), pp. 305
–316
.15.
Francoeur
, M.
, Vaillon
, R.
, and Mengüç
, M. P.
, 2011
, “Thermal Impacts on the Performance of Nanoscale-Gap Thermophotovoltaic Power Generators
,” IEEE Trans. Energy Convers.
, 26
(2
), pp. 686
–698
.16.
Laroche
, M.
, Carminati
, R.
, and Greffet
, J.-J.
, 2006
, “Near-Field Thermophotovoltaic Energy Conversion
,” J. Appl. Phys.
, 100
(6
), p. 063704
.17.
Narayanaswamy
, A.
, and Chen
, G.
, 2003
, “Surface Modes for Near Field Thermophotovoltaics
,” Appl. Phys. Lett.
, 82
(20
), pp. 3544
–3546
.18.
Dimatteo
, R. S.
, Greiff
, P.
, Finberg
, S. L.
, Young-Waithe
, K. A.
, Choy
, H. K. H.
, Masaki
, M. M.
, and Fonstad
, C. G.
, 2001
, “Enhanced Photogeneration of Carriers in a Semiconductor Via Coupling Across a Nonisothermal Nanoscale Vacuum Gap
,” Appl. Phys. Lett.
, 79
(12
), pp. 1894
–1896
.19.
Yang
, W.
, Chou
, S.
, Shu
, C.
, Xue
, H.
, Li
, Z.
, Li
, D.
, and Pan
, J.
, 2003
, “Microscale Combustion Research for Application to Micro Thermophotovoltaic Systems
,” Energy Convers. Manage.
, 44
(16
), pp. 2625
–2634
.20.
Bermel
, P.
, Ghebrebrhan
, M.
, Chan
, W.
, Yeng
, Y. X.
, Araghchini
, M.
, Hamam
, R.
, Marton
, C. H.
, Jensen
, K. F.
, Soljačić
, M.
, and Joannopoulos
, J. D.
, 2010
, “Design and Global Optimization of High-Efficiency Thermophotovoltaic Systems
,” Opt. Express
, 18
(S3), pp. A314
–A334
.21.
Datas
, A.
, 2015
, “Optimum Semiconductor Bandgaps in Single Junction and Multijunction Thermophotovoltaic Converters
,” Sol. Energy Mater. Sol. Cells
, 134
, pp. 275
–290
.22.
Greffet
, J.-J.
, Carminati
, R.
, Joulain
, K.
, Mulet
, J.-P.
, Mainguy
, S.
, and Chen
, Y.
, 2002
, “Coherent Emission of Light by Thermal Sources
,” Nature
, 416
(6876
), pp. 61
–64
.23.
Wang
, H.
, Yang
, Y.
, and Wang
, L. P.
, 2014
, “Switchable Wavelength-Selective and Diffuse Metamaterial Absorber/Emitter With a Phase Transition Spacer Layer
,” Appl. Phys. Lett.
, 105
(7
), p. 071907
.24.
Zhao
, B.
, and Zhang
, Z. M.
, 2014
, “Study of Magnetic Polaritons in Deep Gratings for Thermal Emission Control
,” J. Quant. Spectrosc. Radiat. Transfer
, 135
, pp. 81
–89
.25.
Liu
, X. L.
, Wang
, L. P.
, and Zhang
, Z. M.
, 2013
, “Wideband Tunable Omnidirectional Infrared Absorbers Based on Doped-Silicon Nanowire Arrays
,” ASME J. Heat Transfer
, 135
(6
), p. 061602
.26.
Lee
, B. J.
, Chen
, Y.-B.
, Han
, S.
, Chiu
, F.-C.
, and Lee
, H. J.
, 2014
, “Wavelength-Selective Solar Thermal Absorber With Two-Dimensional Nickel Gratings
,” ASME J. Heat Transfer
, 136
(7
), p. 072702
.27.
Rephaeli
, E.
, and Fan
, S.
, 2009
, “Absorber and Emitter for Solar Thermo-Photovoltaic Systems to Achieve Efficiency Exceeding the Shockley-Queisser Limit
,” Opt. Express
, 17
(17
), pp. 15145
–15159
.28.
Lenert
, A.
, Bierman
, D. M.
, Nam
, Y.
, Chan
, W. R.
, Celanović
, I.
, Soljačić
, M.
, and Wang
, E. N.
, 2014
, “A Nanophotonic Solar Thermophotovoltaic Device
,” Nat. Nanotechnol.
, 9
(2
), pp. 126
–130
.29.
Wu
, C.
, Neuner
, B.
, III, John
, J.
, Milder
, A.
, Zollars
, B.
, Savoy
, S.
, and Shvets
, G.
, 2012
, “Metamaterial-Based Integrated Plasmonic Absorber/Emitter for Solar Thermo-Photovoltaic Systems
,” J. Opt.
, 14
(2
), p. 024005
.30.
Wang
, L. P.
, and Zhang
, Z. M.
, 2012
, “Wavelength-Selective and Diffuse Emitter Enhanced by Magnetic Polaritons for Thermophotovoltaics
,” Appl. Phys. Lett.
, 100
(6
), p. 063902
.31.
Yeng
, Y. X.
, Chan
, W. R.
, Rinnerbauer
, V.
, Joannopoulos
, J. D.
, Soljačić
, M.
, and Celanovic
, I.
, 2013
, “Performance Analysis of Experimentally Viable Photonic Crystal Enhanced Thermophotovoltaic Systems
,” Opt. Express
, 21
(S6), pp. A1035
–A1051
.32.
Kohiyama
, A.
, Shimizu
, M.
, Kobayashi
, H.
, Iguchi
, F.
, and Yugami
, H.
, 2014
, “Spectrally Controlled Thermal Radiation Based on Surface Microstructures for High-Efficiency Solar Thermophotovoltaic System
,” Energy Procedia
, 57
, pp. 517
–523
.33.
Zhao
, B.
, Wang
, L. P.
, Shuai
, Y.
, and Zhang
, Z. M.
, 2013
, “Thermophotovoltaic Emitters Based on a Two-Dimensional Grating/Thin-Film Nanostructure
,” Int. J. Heat Mass Transfer
, 67
, pp. 637
–645
.34.
Bernardi
, M. P.
, Dupré
, O.
, Blandre
, E.
, Chapuis
, P.-O.
, Vaillon
, R.
, and Francoeur
, M.
, 2015
, “Impacts of Propagating, Frustrated and Surface Modes on Radiative, Electrical and Thermal Losses in Nanoscale-Gap Thermophotovoltaic Power Generators
,” Sci. Rep.
, 5
, p. 011626
.35.
Bright
, T. J.
, Wang
, L. P.
, and Zhang
, Z. M.
, 2014
, “Performance of Near-Field Thermophotovoltaic Cells Enhanced With a Backside Reflector
,” ASME J. Heat Transfer
, 136
(6
), p. 062701
.36.
Tong
, J. K.
, Hsu
, W.-C.
, Huang
, Y.
, Boriskina
, S. V.
, and Chen
, G.
, 2015
, “Thin-Film ‘Thermal Well' Emitters and Absorbers for High-Efficiency Thermophotovoltaics
,” Sci. Rep.
, 5
, p. 010661
.37.
Messina
, R.
, and Ben-Abdallah
, P.
, 2013
, “Graphene-Based Photovoltaic Cells for Near-Field Thermal Energy Conversion
,” Sci. Rep.
, 3
, p. 001383
.38.
Ilic
, O.
, Jablan
, M.
, Joannopoulos
, J. D.
, Celanovic
, I.
, and Soljačić
, M.
, 2012
, “Overcoming the Black Body Limit in Plasmonic and Graphene Near-Field Thermophotovoltaic Systems
,” Opt. Express
, 20
(S3), pp. A366
–A384
.39.
Chang
, J.-Y.
, Yang
, Y.
, and Wang
, L. P.
, 2015
, “Tungsten Nanowire Based Hyperbolic Metamaterial Emitters for Near-Field Thermophotovoltaic Applications
,” Int. J. Heat Mass Transfer
, 87
, pp. 237
–247
.40.
Rodriguez
, A. W.
, Ilic
, O.
, Bermel
, P.
, Celanovic
, I.
, Joannopoulos
, J. D.
, Soljačić
, M.
, and Johnson
, S. G.
, 2011
, “Frequency-Selective Near-Field Radiative Heat Transfer Between Photonic Crystal Slabs: A Computational Approach for Arbitrary Geometries and Materials
,” Phys. Rev. Lett.
, 107
(11
), p. 114302
.41.
Liu
, X. L.
, and Zhang
, Z. M.
, 2015
, “Near-Field Thermal Radiation Between Metasurfaces
,” ACS Photonics
, 2
(9
), p. 1320
.42.
Guérout
, R.
, Lussange
, J.
, Rosa
, F. S. S.
, Hugonin
, J. P.
, Dalvit
, D. A. R.
, Greffet
, J.-J.
, Lambrecht
, A.
, and Reynaud
, S.
, 2012
, “Enhanced Radiative Heat Transfer Between Nanostructured Gold Plates
,” Phys. Rev. B
, 85
(18
), p. 180301
.43.
Lussange
, J.
, Guérout
, R.
, Rosa
, F. S. S.
, Greffet
, J.-J.
, Lambrecht
, A.
, and Reynaud
, S.
, 2012
, “Radiative Heat Transfer Between Two Dielectric Nanogratings in the Scattering Approach
,” Phys. Rev. B
, 86
(8
), p. 085432
.44.
Liu
, X. L.
, and Zhang
, Z. M.
, 2014
, “Graphene-Assisted Near-Field Radiative Heat Transfer Between Corrugated Polar Materials
,” Appl. Phys. Lett.
, 104
(25
), p. 251911
.45.
Palik
, E. D.
, ed., 1998
, Handbook of Optical Constants of Solids
, Vol. 1
, Academic Press
, San Diego, CA
.46.
González-Cuevas
, J. A.
, Refaat
, T. F.
, Abedin
, M. N.
, and Elsayed-Ali
, H. E.
, 2006
, “Modeling of the Temperature-Dependent Spectral Response of In1-xGaxSb Infrared Photodetectors
,” Opt. Eng.
, 45
(4), p. 044001
.47.
Liu
, X. L.
, and Zhang
, Z. M.
, 2015
, “Giant Enhancement of Nanoscale Thermal Radiation Based on Hyperbolic Graphene Plasmons
,” Appl. Phys. Lett.
, 107
(14
), p. 143114
.48.
Lambrecht
, A.
, and Marachevsky
, V. N.
, 2008
, “Casimir Interaction of Dielectric Gratings
,” Phys. Rev. Lett.
, 101
(16
), p. 160403
.49.
Ashcroft
, N. W.
, and Mermin
, N. D.
, 1976
, Solid State Physics
, Holt, Rinehart and Winston
, New York
.50.
Liu
, X. L.
, Zhao
, B.
, and Zhang
, Z. M.
, 2015
, “Enhanced Near-Field Thermal Radiation and Reduced Casimir Stiction Between Doped-Si Gratings
,” Phys. Rev. A
, 91
(6
), p. 062510
.51.
Joulain
, K.
, Mulet
, J.-P.
, Marquier
, F.
, Carminati
, R.
, and Greffet
, J.-J.
, 2005
, “Surface Electromagnetic Waves Thermally Excited: Radiative Heat Transfer, Coherence Properties and Casimir Forces Revisited in the Near Field
,” Surf. Sci. Rep.
, 57
(3–4), pp. 59
–112
.52.
Watjen
, J. I.
, Bright
, T. J.
, Zhang
, Z. M.
, Muratore
, C.
, and Voevodin
, A. A.
, 2013
, “Spectral Radiative Properties of Tungsten Thin Films
,” Int. J. Heat Mass Transfer
, 61
, pp. 106
–113
.53.
Basu
, S.
, and Zhang
, Z. M.
, 2009
, “Maximum Energy Transfer in Near-Field Thermal Radiation at Nanometer Distances
,” J. Appl. Phys.
, 105
(9
), p. 093535
.54.
Liu
, B.
, Shi
, J.
, Liew
, K.
, and Shen
, S.
, 2014
, “Near-Field Radiative Heat Transfer for Si Based Metamaterials
,” Opt. Commun.
, 314
, pp. 57
–65
.55.
Liu
, X. L.
, Bright
, T. J.
, and Zhang
, Z. M.
, 2014
, “Application Conditions of Effective Medium Theory in Near-Field Radiative Heat Transfer Between Multilayered Metamaterials
,” ASME J. Heat Transfer
, 136
(9
), p. 092703
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