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Article: Scalable all-ceramic nanofilms as highly efficient and thermally stable selective solar absorbers

TitleScalable all-ceramic nanofilms as highly efficient and thermally stable selective solar absorbers
Authors
KeywordsConcentrating solar power
Solar-thermal energy conversion
All-ceramic nanofilms
Thermal stability
Spectrally selective absorber
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/issn/22112855
Citation
Nano Energy, 2019, v. 64, p. article no. 103947 How to Cite?
AbstractThe pressing demands for next-generation concentrating solar power drive the pursuit of high-efficiency, thermally stable, and scalable spectrally selective absorbers. Multilayer metal/ceramic nanofilms are promising candidates owing to their strong sunlight absorption provided by extremely simple configurations and facile fabrication. However, the commercial success of such absorbers is still hindered by their unsatisfactory spectral selectivity and high-temperature stability associated with metal/ceramic interfaces. Here we first propose an all-ceramic TiN/TiNO/ZrO2/SiO2 absorber with highly selective absorption, i.e., a high solar absorptance (92.2%) yet an ultralow thermal emittance (17.0% at 1000 K), producing an unprecedented solar-thermal conversion efficiency (82.6% under 100 suns). Remarkably, the absorber shows great thermal stability even after long-term (150 h) annealing at 1000 K, boosting the operating temperature of conventional multilayer absorbers by at least 227 K. The efficient and stable all-ceramic absorber can be readily produced in quantity via low-cost processes, rendering it attractive for high-temperature solar-thermal technologies.
Persistent Identifierhttp://hdl.handle.net/10722/279183
ISSN
2017 Impact Factor: 13.12
2015 SCImago Journal Rankings: 4.169

 

DC FieldValueLanguage
dc.contributor.authorLi, Y-
dc.contributor.authorLin, C-
dc.contributor.authorZhou, D-
dc.contributor.authorAn, Y-
dc.contributor.authorLi, D-
dc.contributor.authorChi, C-
dc.contributor.authorHuang, H-
dc.contributor.authorYang, S-
dc.contributor.authorTso, CY-
dc.contributor.authorChao, CYH-
dc.contributor.authorHuang, B-
dc.date.accessioned2019-10-21T02:21:08Z-
dc.date.available2019-10-21T02:21:08Z-
dc.date.issued2019-
dc.identifier.citationNano Energy, 2019, v. 64, p. article no. 103947-
dc.identifier.issn2211-2855-
dc.identifier.urihttp://hdl.handle.net/10722/279183-
dc.description.abstractThe pressing demands for next-generation concentrating solar power drive the pursuit of high-efficiency, thermally stable, and scalable spectrally selective absorbers. Multilayer metal/ceramic nanofilms are promising candidates owing to their strong sunlight absorption provided by extremely simple configurations and facile fabrication. However, the commercial success of such absorbers is still hindered by their unsatisfactory spectral selectivity and high-temperature stability associated with metal/ceramic interfaces. Here we first propose an all-ceramic TiN/TiNO/ZrO2/SiO2 absorber with highly selective absorption, i.e., a high solar absorptance (92.2%) yet an ultralow thermal emittance (17.0% at 1000 K), producing an unprecedented solar-thermal conversion efficiency (82.6% under 100 suns). Remarkably, the absorber shows great thermal stability even after long-term (150 h) annealing at 1000 K, boosting the operating temperature of conventional multilayer absorbers by at least 227 K. The efficient and stable all-ceramic absorber can be readily produced in quantity via low-cost processes, rendering it attractive for high-temperature solar-thermal technologies.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/issn/22112855-
dc.relation.ispartofNano Energy-
dc.subjectConcentrating solar power-
dc.subjectSolar-thermal energy conversion-
dc.subjectAll-ceramic nanofilms-
dc.subjectThermal stability-
dc.subjectSpectrally selective absorber-
dc.titleScalable all-ceramic nanofilms as highly efficient and thermally stable selective solar absorbers-
dc.typeArticle-
dc.identifier.emailChao, CYH: cyhchao@hku.hk-
dc.identifier.authorityChao, CYH=rp02396-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.nanoen.2019.103947-
dc.identifier.scopuseid_2-s2.0-85070095136-
dc.identifier.hkuros307899-
dc.identifier.volume64-
dc.identifier.spagearticle no. 103947-
dc.identifier.epagearticle no. 103947-
dc.publisher.placeNetherlands-

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