Simultaneous Light‐Triggered Formation of Polymer Networks and Enhancement of Electrohydrodynamic Instabilities in Liquid Crystals for Versatile Energy‐Saving Smart Windows

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 20, 2024

Abstract Smart windows have come to the fore in modern buildings and intelligent information equipment drawing upon their dynamic control over light transmission. Liquid crystals tactfully manipulate transmission depending on microcosmic molecular orientations, emerging as new favorite functional materials for smart windows. However, most liquid crystal window technologies require continuous electricity operation luminous transparency still perform a trade‐off between film formation performance dimming functions. As key components of building structures, shall be kept transparent an extended period. For convenience large‐scale processing, polymer matrices are indispensable. Given that, reverse‐operation‐mode films, which achieve daylighting natural or no power‐input states become opaque block sunlight through electric input demand, highly desired. Here, by introducing photolabile amine, synchronous light‐induced networks enhancement electrohydrodynamic instabilities mesogenic is successfully executed. Relying this creative effective approach, network films having simultaneous modulation capability visible near‐infrared from solar irradiation skillfully fabricated, promising applications versatile energy‐saving

Language: Английский

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Experimental study on indoor thermal and daylighting performance of different thermotropic window systems in subtropical climate

Energy and Buildings, Journal Year: 2025, Volume and Issue: 329, P. 115276 - 115276

Published: Jan. 6, 2025

Language: Английский

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Enhanced flexibility of WO3-based flexible electrochromic devices for smart windows via ion beam treatment

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161283 - 161283

Published: March 1, 2025

Language: Английский

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Temperature-sensitive ionic hydrogels for dual electric and thermal responsive smart window

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 158937 - 158937

Published: Jan. 5, 2025

Language: Английский

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Energy-Efficient Building Façades: A Comprehensive Review of Innovative Technologies and Sustainable Strategies

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 111643 - 111643

Published: Dec. 1, 2024

Language: Английский

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Flexible Visible-Light/Near-Infrared Dual-Band Electrochromic Smart Windows with Photothermal Modulation and Facile Preparation

Published: Jan. 1, 2025

The flexibilization of dual-band electrochromic smart windows (DECSWs) addresses the fragility and weakness to impact traditional rigid windows, offering convenience in pre-transportation, post-installation, maintenance. However, high cost complexity fabrication processes hinder development DECSWs. This paper presents a novel method utilizing spraying technique dope W18O49, which has excellent properties, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate), known for its stable mechanical onto surface indium-doped titanium dioxide/poly(ethyeleneterephtalate) create flexible film with superior DEC characteristics. Crucially, visible-light region, optical contrast reached 68.1% coloration efficiency 96.22 mC/cm2. In near-infrared showed 50.67% coloring 102.63 Additionally, DECSW exhibited outstanding maintaining EC performance during bending from 0° 180°, allowing independent regulation passage visible light. Furthermore, had photothermal regulation, achieving temperature 4.2 °C heat blocking 2.8 simulated sunlight experiments. device also retained after cutting, enabling preparation tailored shapes various applications. These results highlight significant potential reducing energy consumption.

Language: Английский

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Electrochromic properties of Na2V6O16·2.1H2O nanorod films in Zn2+/Na+ hybrid electrolyte

Ionics, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Language: Английский

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Tunable Oxygen Vacancies and Porous Structure of Ta-Doped Tungsten Oxide Films for Enhanced Electrochromic Properties

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Language: Английский

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Built‐In Electric Field‐Assisted Polyaniline for Boosting Dual‐Band Electrochromic Smart Windows with Multicolor Displays and Four‐Mode Conversion

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract Dual‐band electrochromic smart windows (DESWs) can selectively adjust the transmittance of visible (VIS) and near‐infrared (NIR) light, significantly reducing building energy consumption. However, current DESWs face challenges in achieving multi‐color control fully independent modulation VIS NIR light. Herein, a DESW with display capabilities four distinct operational modes is presented, achieved by utilizing polyaniline (PANI) combination built‐in electric field. The field, formed at interface between Au PANI, enhances transport speed ions electrons during (EC) process, facilitating electronic transitions polarons, bipolarons, quinonoid units. This improvement EC performance Au/PANI Schottky junction films compared to pure PANI films. enhanced not only expands from three four, but also provides faster response times (τ c /τ b = 1.1/5.4 s 1600 nm, τ 0.9/1.3 633 nm) superior cycle stability. Additionally, large‐scale (5 × 5 cm 2 ) device demonstrated, effectively controlling both temperature light flux. incorporation field accelerates electron ion transfer, providing promising strategy for developing high‐performance applications energy‐efficient buildings.

Language: Английский

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Impact of Photovoltaic Energy-Saving Window on Building Heating Load

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: 108, P. 112853 - 112853

Published: May 5, 2025

Language: Английский

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