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Large-scale nanostr...
Large-scale nanostructured low-temperature solar selective absorber
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Chi, Kequn (författare)
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Yang, Liu (författare)
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Liu, Zhaolang (författare)
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Gao, Pingqi (författare)
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Ye, Jichun (författare)
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- He, Sailing (författare)
- KTH,Zhejiang-KTH Joint Research Center of Photonics, JORCEP,Zhejiang University, China
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(creator_code:org_t)
- Optical Society of America, 2017
- 2017
- Engelska.
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Ingår i: Optics Letters. - : Optical Society of America. - 0146-9592 .- 1539-4794. ; 42:10, s. 1891-1894
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- A large-scale nanostructured low-temperature solar selective absorber is demonstrated experimentally. It consists of a silicon dioxide thin film coating on a rough refractory tantalum substrate, fabricated based simply on self-assembled, closely packed polystyrene nanospheres. Because of the strong light harvesting of the surface nanopatterns and constructive interference within the top silicon dioxide coating, our absorber has a much higher solar absorption (0.84) than its planar counterpart (0.78). Though its absorption is lower than that of commercial black paint with ultra-broad absorption, the greatly suppressed absorption/emission in the long range still enables a superior heat accumulation. The working temperature is as high as 196.3 degrees C under 7-sun solar illumination in ambient conditions-much higher than those achieved by the two comparables.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
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