Zhou Zhengui, Liu Rong, Huang Zhen, Hu Bin, Long Yi
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China.
Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, 999077, China.
Adv Sci (Weinh). 2025 Mar;12(9):e2414192. doi: 10.1002/advs.202414192. Epub 2025 Jan 10.
Traditional window glazing, with inherently adverse energy-efficient optical properties, leads to colossal energy losses. Energy-saving glass requires a customized optical design for different climate zones. Compared with the widely researched radiative cooling technology which is preferable to be used in low-altitude hot regions; conversely in high-latitude cold regions, high solar transmittance (T) and low mid-infrared thermal emissivity (ε) are the key characteristics of high-performance radiative warming window glass, while the current low-emissivity (low-e) glass is far from ideal. To address this issue, Drude's theory is used to numerically design a near-ideal film with specified electron density (n) and electron mobility (µ). The fabricated hydrogen-doped indium oxide (IHO) could achieve high T (0.836) and low ε (0.117). Energy-saving simulations further reveal a substantial decrease in annual heating energy consumption up to 6.6% across high-latitude regions (climate zones 6 to 8), translating to a corresponding reduction in CO emissions (20.0 kg m), outperforming 1165 high performance commercial low-e glass. This radiative warming glass holds the promise of making a significant contribution to sustainable building energy savings specifically for high-latitude cold regions, advancing the goal of carbon neutrality.
传统的窗户玻璃具有固有的不利于节能的光学特性，会导致巨大的能量损失。节能玻璃需要针对不同气候区域进行定制光学设计。与广泛研究的、更适合在低海拔炎热地区使用的辐射冷却技术相比；相反，在高纬度寒冷地区，高太阳透过率（T）和低中红外热发射率（ε）是高性能辐射保暖窗玻璃的关键特性，而目前的低辐射率（low-e）玻璃远非理想。为了解决这个问题，利用德鲁德理论对具有特定电子密度（n）和电子迁移率（µ）的近理想薄膜进行数值设计。制备的氢掺杂氧化铟（IHO）可实现高T（0.836）和低ε（0.117）。节能模拟进一步表明，在高纬度地区（气候区6至8），年供暖能耗大幅降低高达6.6%，相应地减少了二氧化碳排放量（20.0千克/平方米），性能优于1165种高性能商用低辐射率玻璃。这种辐射保暖玻璃有望为特别是高纬度寒冷地区的可持续建筑节能做出重大贡献，推动碳中和目标的实现。
