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Thermochromic Ni(II) Organometallics With High Optical Transparency and Low Phase-Transition Temperature for Energy-Saving Smart Windows
Small ( IF 13.0 ) Pub Date : 2023-03-06 , DOI: 10.1002/smll.202205833
Danxia Yu 1 , Sheng Zhuo 1 , Jia Wang 1 , Zheng Liu 1 , Jianyong Ye 2 , Yue Wang 3 , Long Chen 1 , Xingxing Ouyang 1 , Ke-Qin Zhang 4 , Xiao-Qing Zhou 1 , Jinping Guan 4 , Yue Liu 1, 5 , Weifan Chen 1, 2, 5 , Liang-Sheng Liao 6 , Ming-Peng Zhuo 4, 6
Small ( IF 13.0 ) Pub Date : 2023-03-06 , DOI: 10.1002/smll.202205833
Danxia Yu 1 , Sheng Zhuo 1 , Jia Wang 1 , Zheng Liu 1 , Jianyong Ye 2 , Yue Wang 3 , Long Chen 1 , Xingxing Ouyang 1 , Ke-Qin Zhang 4 , Xiao-Qing Zhou 1 , Jinping Guan 4 , Yue Liu 1, 5 , Weifan Chen 1, 2, 5 , Liang-Sheng Liao 6 , Ming-Peng Zhuo 4, 6
Affiliation
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Thermochromic smart windows with rational modulation in indoor temperature and brightness draw considerable interest in reducing building energy consumption, which remains a huge challenge to meet the comfortable responsive temperature and the wide transmittance modulation range from visible to near-infrared (NIR) light for their practical application. Herein, a novel thermochromic Ni(II) organometallic of [(C2H5)2NH2]2NiCl4 for smart windows is rationally designed and synthesized via an inexpensive mechanochemistry method, which processes a low phase-transition temperature of 46.3 °C for the reversible color evolution from transparent to blue with a tunable visible transmittance from 90.5% to 72.1%. Furthermore, cesium tungsten bronze (CWO) and antimony tin oxide (ATO) with excellent NIR absorption in 750–1500 and 1500–2600 nm are introduced in the [(C2H5)2NH2]2NiCl4-based smart windows, realizing a broadband sunlight modulation of a 27% visible light modulation and more than 90% of NIR shielding ability. Impressively, these smart windows demonstrate stable and reversible thermochromic cycles at room temperature. Compared with the conventional windows in the field tests, these smart windows can significantly reduce the indoor temperature by 16.1 °C, which is promising for next-generation energy-saving buildings.
中文翻译：
用于节能智能窗的具有高光学透明度和低相变温度的热致变色镍 (II) 有机金属
合理调节室内温度和亮度的热致变色智能窗在降低建筑能耗方面引起了人们的极大兴趣，这仍然是满足舒适的响应温度和从可见光到近红外 (NIR) 光的宽透射率调制范围的巨大挑战，因为它们的实用性应用。在此，一种新型热致变色 Ni(II) 有机金属 [(C 2 H 5 ) 2 NH 2 ] 2 NiCl 4for smart windows 是通过一种廉价的机械化学方法合理设计和合成的，该方法处理 46.3 °C 的低相变温度，实现从透明到蓝色的可逆颜色演变，可见光透射率从 90.5% 到 72.1%。此外，在 [(C 2 H 5 ) 2 NH 2 ] 2 NiCl 4中引入了在 750–1500 和 1500–2600 nm 具有出色 NIR 吸收的铯钨青铜 (CWO) 和氧化锑锡 (ATO)基于智能窗，实现27%可见光调制和90%以上NIR屏蔽能力的宽带阳光调制。令人印象深刻的是，这些智能窗户在室温下表现出稳定且可逆的热致变色循环。与现场测试的传统窗户相比，这些智能窗户可将室内温度显着降低16.1°C，这对于下一代节能建筑具有广阔的前景。
更新日期：2023-03-06
中文翻译：
用于节能智能窗的具有高光学透明度和低相变温度的热致变色镍 (II) 有机金属
合理调节室内温度和亮度的热致变色智能窗在降低建筑能耗方面引起了人们的极大兴趣，这仍然是满足舒适的响应温度和从可见光到近红外 (NIR) 光的宽透射率调制范围的巨大挑战，因为它们的实用性应用。在此，一种新型热致变色 Ni(II) 有机金属 [(C 2 H 5 ) 2 NH 2 ] 2 NiCl 4for smart windows 是通过一种廉价的机械化学方法合理设计和合成的，该方法处理 46.3 °C 的低相变温度，实现从透明到蓝色的可逆颜色演变，可见光透射率从 90.5% 到 72.1%。此外，在 [(C 2 H 5 ) 2 NH 2 ] 2 NiCl 4中引入了在 750–1500 和 1500–2600 nm 具有出色 NIR 吸收的铯钨青铜 (CWO) 和氧化锑锡 (ATO)基于智能窗，实现27%可见光调制和90%以上NIR屏蔽能力的宽带阳光调制。令人印象深刻的是，这些智能窗户在室温下表现出稳定且可逆的热致变色循环。与现场测试的传统窗户相比，这些智能窗户可将室内温度显着降低16.1°C，这对于下一代节能建筑具有广阔的前景。
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