Electrochromic devices are a key technology to modulate optical and thermal energy for zero-energy buildings. With the sun as the heat source and deep space as the cold source, it would be beneficial to accomplish wideband regulation and control both solar and radiative heat simultaneously to obtain large heating and cooling performance. Here, a flexible ultra-wideband transparent conducting electrode (UWB-TCE) with low sheet resistance (R_s = 22.4 ohm/sq) and high optical transmittance (T_UV–vis = 85.63%, T_near-IR = 87.85%, and T_mid-IR = 84.87%) has been demonstrated to realize an electrochromic device that is capable of synergistic solar and radiative heat management. Enabled by the UWB-TCE, the metal-based electrochromic device can vary its emissivity between 0.12 and 0.94. The device can also switch between solar heating mode (high solar absorptivity and low thermal emissivity) and radiative cooling mode (low solar absorptivity and high thermal emissivity) by controlling the optimal electrodeposition morphology for surface plasmon resonance. The optimal solar absorptivity (α) and thermal emissivity (ε) of solar heating and radiative cooling mode are (α, ε) = (0.60, 0.20) and (0.33, 0.94), respectively. The UWB-TCE and dual-band solar and mid-IR electrochromic device can bring vast opportunities for applications in heat management, camouflage, display, and building energy efficiency.

中文翻译：

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用于电致变色协同太阳能和辐射热管理的超宽带透明导电电极

电致变色器件是零能耗建筑调制光能和热能的关键技术。以太阳为热源，以深空为冷源，有利于同时实现对太阳热和辐射热的宽带调控和控制，获得较大的供热制冷性能。这里，柔性超宽带透明导电电极（UWB-TCE）与低的薄层电阻（ř_小号= 22.4欧姆/平方）和高光透射率（Ť_的UV-vis = 85.63％，Ť_近IR = 87.85％，和牛逼_的中红外= 84.87%) 已被证明可以实现一种能够协同太阳能和辐射热管理的电致变色装置。在 UWB-TCE 的支持下，金属基电致变色器件的发射率可以在 0.12 到 0.94 之间变化。该器件还可以通过控制表面等离子体共振的最佳电沉积形态，在太阳能加热模式（高太阳能吸收率和低热辐射率）和辐射冷却模式（低太阳能吸收率和高热辐射率）之间切换。太阳能加热和辐射冷却模式的最佳太阳能吸收率 (α) 和热辐射率 (ε) 分别为 (α, ε) = (0.60, 0.20) 和 (0.33, 0.94)。UWB-TCE 和双波段太阳能和中红外电致变色器件可为热管理、伪装、显示、