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dc.contributor.authorAbbas, Muhammad Aamir
dc.contributor.authorKim, Joohoon
dc.contributor.authorRana, Ahsan Sarwar
dc.contributor.authorKim, Inki
dc.contributor.authorRehman, Bacha
dc.contributor.authorAhmad, Zubair
dc.contributor.authorMassoud, Yehia Mahmoud
dc.contributor.authorSeong, Junhwa
dc.contributor.authorBadloe, Trevon
dc.contributor.authorPark, Keunhan
dc.contributor.authorMehmood, Muhammad Qasim
dc.contributor.authorZubair, Muhammad
dc.contributor.authorRho, Junsuk
dc.date.accessioned2022-04-14T10:38:33Z
dc.date.available2022-04-14T10:38:33Z
dc.date.issued2022-03-30
dc.identifier.citationAbbas, M. A., Kim, J., Rana, A. S., Kim, I., Rehman, B., Ahmad, Z., Massoud, Y., Seong, J., Badloe, T., Park, K., Mehmood, M. Q., Zubair, M., & Rho, J. (2022). Nanostructured chromium-based broadband absorbers and emitters to realize thermally stable solar thermophotovoltaic systems. Nanoscale. https://doi.org/10.1039/d1nr08400c
dc.identifier.issn2040-3364
dc.identifier.pmid35416207
dc.identifier.doi10.1039/d1nr08400c
dc.identifier.urihttp://hdl.handle.net/10754/676259
dc.description.abstractThe efficiency of traditional solar cells is constrained due to the Shockley-Queisser limit, to circumvent this theoretical limit, the concept of solar thermophotovoltaics (STPVs) has been introduced. The typical design of an STPV system consists of a wideband absorber with its front side facing the sun. The back of this absorber is physically attached to the back of a selective emitter facing a low-bandgap photovoltaic (PV) cell. We demonstrate an STPV system consisting of a wideband absorber and emitter pair achieving a high absorptance of solar radiation within the range of 400-1500 nm (covering the visible and infrared regions), whereas the emitter achieves an emittance of >95% at a wavelength of 2.3 μm. This wavelength corresponds to the bandgap energy of InGaAsSb (0.54 eV), which is the targeted PV cell technology for our STPV system design. The material used for both the absorber and the emitter is chromium due to its high melting temperature of 2200 K. An absorber and emitter pair is also fabricated and the measured results are in agreement with the simulated results. The design achieves an overall solar-to-electrical simulated efficiency of 21% at a moderate temperature of 1573 K with a solar concentration of 3000 suns. Furthermore, an efficiency of 15% can be achieved at a low temperature of 873 K with a solar concentration of 500 suns. The designs are also insensitive to polarization and show negligible degradation in solar absorptance and thermal emittance with a change in the angle of incidence.
dc.description.sponsorshipFinancially supported by the POSCO-POSTECH-RIST Convergence Research Center program funded by POSCO, and the National Research Foundation (NRF) grants (NRF-2019R1A2C3003129, CAMM-2019M3A6B3030637, NRF-2019R1A5A8080290, and NRF-2018M3D1A1058997) funded by the Ministry of Science and ICT (MSIT) of the Korean government. J.K. acknowledges the POSTECH Alchemist fellowship. I.K. acknowledges the NRF Sejong Science fellowship (NRF-2021R1C1C2004291) funded by the MSIT of the Korean government.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://xlink.rsc.org/?DOI=D1NR08400C
dc.rightsArchived with thanks to Nanoscale
dc.titleNanostructured chromium-based broadband absorbers and emitters to realize thermally stable solar thermophotovoltaic systems
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Science and Engineering (CEMSE) Division
dc.contributor.departmentInnovative Technologies Laboratories (ITL)
dc.identifier.journalNanoscale
dc.rights.embargodate2023-03-30
dc.eprint.versionPost-print
dc.contributor.institutionMicroNano Lab, Electrical Engineering Department, Information Technology University (ITU) of the Punjab, Ferozepur Road, Lahore 54600, Pakistan
dc.contributor.institutionDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
dc.contributor.institutionDepartment of Electrical & Computer Engineering, Air University, Islamabad, 44000, Pakistan
dc.contributor.institutionDepartment of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
dc.contributor.institutionDepartment of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
dc.contributor.institutionNamal University, Mianwali 42250, Pakistan
dc.contributor.institutionQatar University Young Scientists Center (QUYSC), Qatar University, Doha 2713, Qatar
dc.contributor.institutionDepartment of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
dc.contributor.institutionDepartment of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
dc.contributor.institutionPOSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang 37673, Republic of Korea
dc.contributor.institutionNational Institute of Nanomaterials Technology (NINT), Pohang 37673, Republic of Korea
kaust.personMassoud, Yehia Mahmoud


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