Photonics and Nanostructures - Fundamentals and Applications, Journal Year: 2025, Volume and Issue: unknown, P. 101350 - 101350
Published: Jan. 1, 2025
Language: Английский
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150194 - 150194
Published: March 5, 2024
Language: Английский
Citations
30
Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 12960 - 12982
Published: Jan. 1, 2024
Smart windows based on thermoresponsive materials can modulate solar radiation to save building energy. Next generation smart that not only transmission, but also convert and store energy through new power technologies.
Language: Английский
Citations
21
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: May 14, 2024
Abstract Temperature‐responsive hydrogels including lower critical solution temperature (LCST)‐ and upper (UCST)‐type are attractive in various fields. However, the swift switch between LCST UCST stimuli‐responsive behaviors remains intriguing challenging. Here is reported a kind of hydrogel with pH‐gated response behaviors. This achieved using hydrogen bonding carboxylic acid groups poly(acrylic acid‐ co ‐acrylamide) hydroxyl hydroxypropyl cellulose (HPC). The ‐acrylamide)‐HPC (PACA‐HPC) exhibit reversible LCST‐UCST phase transition behavior. When transparent PACA‐HPC placed an bath, COO − get protonated, rapidly forming bonds HPC to render light‐scattering state making opaque. Furthermore, opaque exhibits behavior at 20–45 °C. PCAC‐HPC alkaline environment, hydrogen‐bonded complexes gradually dissociate as COOH deprotonated form homogeneous state. 20–45° C. Therefore, shown strategy fabricate tunable responses. With this switchable LCST/UCST responsive behaviors, demonstrated its applications smart windows information encryption.
Language: Английский
Citations
18
Accounts of Materials Research, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 3, 2025
Language: Английский
Citations
2
Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 973 - 973
Published: Feb. 19, 2025
Electrochromic (EC) technology has become one of the smart technologies with most potential for development and application at this stage. Based on electrochromic devices (ECDs), shown extraordinary in fields windows, display devices, sensing systems. With optimization iteration various core components ECDs, electrolyte layer, a key component, evolved from its initial liquid state to quasi-solid solid state. As driven by increasing demands, trend indicates that all-solid-state, transparent electrolytes will likely future form layer. Recently, ionic (IL)-based field electrochromism attracted lot attention due their ability bring outstanding EC cycling stability, thermal wider operating voltage range they are regarded as new generation materials application. Although compared conventional electrolytes, IL-based have characteristics high price, viscosity, low conductivity, still considered promising applications. However, so far, there been lack comprehensive analysis reports “Research progress liquid-based devices” within field. In article, research ECDs be summarized three perspectives: liquid, quasi-solid, The directions discussed.
Language: Английский
Citations
2
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(37)
Published: March 28, 2024
Abstract Passive radiative cooling materials can efficiently reflect solar radiation and spontaneously dissipate heat through the long‐wave infrared (LWIR) transmission window to coldouter space. They are highly attractive for application in walls roofs of sustainable energy‐efficient buildings, but it is a challenging task develop switchable coolers transparent windows. Herein, free‐standing bacterial cellulose‐templated liquid crystal films with high LWIR emissivity self‐adaptive transmittance reported. Biosynthetic silanized cellulose 3D interconnected porous nanostructure harnessed as robust template confining novel crystals smectic A chiral nematic phase transition, thereby endowing film modulation ability. The resulting found not only exhibit remarkable emissivity, also adaptively change its between state an opaque according environmental temperature variation. Outdoor experiments performed, energy‐saving performance evaluated simulation 12‐story reference office building applied This research shine light on development advanced their widespread applications vehicles, photovoltaics.
Language: Английский
Citations
17
Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(14)
Published: Feb. 9, 2024
Abstract Windows are used everywhere, from buildings to vehicles. Smart switchable windows highly sought‐after in order reduce energy consumption. An ideal smart window should have two functions. First, it be able control privacy. Second, radiant flow. Here, a is reported that possesses the The based on dichroic dye‐doped cholesteric liquid crystal. It exhibits stable states absence of applied voltage. One them planar state optically absorbing without haze and can other focal conic scattering Furthermore, when voltage applied, crystal switched heliconical state, where transmittance tuned continuously. Thanks its superior performance, this has big potential for applications architectural vehicle windows.
Language: Английский
Citations
13
ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown
Published: April 9, 2024
With the fast economic development and accelerating urbanization, more skyscrapers made entirely of concrete glass are being constructed. To keep a comfortable indoor environment, massive energy for air conditioning or heating appliances is consumed. A huge amount heat (>30%) gained released through windows. Using smart windows with capability to modulate light an effective way reduce building consumption. Thermochromic hydrogel one potential window materials due its excellent thermal response, high radiation-blocking efficiency, cost-effectiveness, biocompatibility, good uniformity. In this work, polyhydroxypropyl acrylate (PHPA) hydrogels controllable lower critical solution temperature (LCST) were prepared by photopolymerization. The transition rate under "static transition" conditions investigated. Unlike "static" in which was not affected initial final heating/cooling ramp, varied change dynamic conditions. "dynamic" PHPA gradually increased increase rate. It result movement molecular chains lagging behind when too fast. results solar irradiation experiment filling into double glazing showed that about 15 °C than ordinary windows, indicating it can significantly consumption conditioning. addition, wide range adjustable temperatures optical response make potentially applicable
Language: Английский
Citations
13
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
Citations
12
Next Sustainability, Journal Year: 2024, Volume and Issue: 3, P. 100027 - 100027
Published: Jan. 1, 2024
Energy consumption within buildings, predominantly driven by non-renewable sources, remains a substantial contributor to greenhouse gas emissions. This is primarily attributed the demand for occupant comfort, encompassing air-conditioning, lighting, and electrical usage. In response this pressing challenge, switchable smart windows have emerged as highly promising solution applicable both residential commercial structures. By effectively modulating light heat, these offer multifaceted approach energy conservation, reduced heat loss, diminished reliance on artificial consequential cost savings. research paper critically evaluates latest advancements in electrically actuated windows, with specific focus AC-powered variants such Suspended Particles, Liquid Crystal, DC-powered Electrochromic windows. The study meticulously delves into operational principles, technical parameters, advantages, limitations, prospects, applications, energy-saving potential, market penetration of intelligent window technologies. Notably, investigation extends key thermal metrics like overall transfer coefficient solar gain coefficient, alongside optical attributes including correlated colour temperature (CCT) rendering index (CRI). Furthermore, report intricate challenges associated integrating building infrastructure, presenting viable solutions perspectives address concerns. These encompass absence standardized regulations UK, elevated costs, intricacies, limited development, uncharted compatibility new constructions retrofit designs. Through comprehensive analysis, endeavours shed potential avenues surmount obstacles, ultimately unlocking full establishing energy-efficient built environments.
Language: Английский
Citations
11