High-temperature solar selective absorbers based on a transparent conductive oxide film coated periodic micro-hole array

Makoto Shimizu, Toshiro Abe, Fumitada Iguchi, Hiroo Yugami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A transparent conductive oxide (TCO) film coated metal microstructures as solar selective absorbers for high-temperature usage exceeding 700°C is introduced. Steep absorption cutoff property and low-emittance at infrared range owing to TCO characteristic can be seen, whereas high-absorptance explained by interaction of incident light and microstructures of which size is submicron is appeared. Honeycomb array cylindrical microcavity of which an absorptance peak appeared at around 0.8 μm was fabricated on a tungsten (W) surface with interference lithography technique. The fabricated sample consist of 1.0 μm indium tin oxide film and W microstructure showed solar absorptance αs = 0.83, hemispherical emittance ϵht = 0.16 assuming the absorber temperature at 700°C, and performance factor η= 0.76. Short duration thermal stability was confirmed at 700°C for 2 h in vacuum condition.

Original languageEnglish
Title of host publicationSolarPACES 2016
Subtitle of host publicationInternational Conference on Concentrating Solar Power and Chemical Energy Systems
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415225
DOIs
Publication statusPublished - 2017 Jun 27
Event22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016 - Abu Dhabi, United Arab Emirates
Duration: 2016 Oct 112016 Oct 14

Publication series

NameAIP Conference Proceedings
Volume1850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period16/10/1116/10/14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'High-temperature solar selective absorbers based on a transparent conductive oxide film coated periodic micro-hole array'. Together they form a unique fingerprint.

Cite this