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Selective Solar Harvesting Windows for Full‐Spectrum Utilization

Li, Weihong; Lin, Chongjia; Huang, Gan 1; Hur, Jun; Huang, Baoling ; Yao, Shuhuai
1 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)

Abstract:

Smart windows can selectively regulate excess solar radiation to reduce heating and cooling energy consumption in the built environment. However, the inevitable dissipation of ultraviolet and near-infrared into waste heat results in inefficient solar utilization. Herein, a dual-band selective solar harvesting (SSH) window is developed to realize full-spectrum utilization. A transparent photovoltaic, converting ultraviolet into electricity, and a transparent solar absorber, converting near-infrared into thermal energy, are integrated and coupled with a ventilation system to extract heat for indoor use. Compared with common transparent photovoltaics, the SSH window increases solar harvesting efficiency up to threefold while maintaining a considerable visible transmittance. Simulations suggest that the SSH window, besides generating electricity, delivers energy savings by over 30% higher than common smart windows. This is the first integration of transparent photovoltaic and transparent solar absorber into a window, which may open up a new avenue for the development of energy-efficient buildings.


Verlagsausgabe §
DOI: 10.5445/IR/1000148645
Veröffentlicht am 13.07.2022
Originalveröffentlichung
DOI: 10.1002/advs.202201738
Scopus
Zitationen: 16
Web of Science
Zitationen: 13
Dimensions
Zitationen: 16
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 25.07.2022
Sprache Englisch
Identifikator ISSN: 2198-3844
KITopen-ID: 1000148645
HGF-Programm 38.01.04 (POF IV, LK 01) Modules, Stability, Performance and Specific Applications
Erschienen in Advanced Science
Verlag Wiley Open Access
Band 9
Heft 21
Seiten Art.Nr. 2201738
Vorab online veröffentlicht am 05.06.2022
Nachgewiesen in Dimensions
Scopus
Web of Science
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