Yoon Jongwon, Kim Kwang-Seok, Hong Woong-Ki
Energy & Environment Materials Research Division, Korea Institute of Materials Science, Changwon-si, Gyeongsangnam-do 51508, Republic of Korea.
Carbon & Light Materials Application Group, Korea Institute of Industrial Technology, 222Palbok-ro, Deokjin-gu, Jeonju 54853, Republic of Korea.
Chemistry. 2024 Aug 1;30(43):e202400826. doi: 10.1002/chem.202400826. Epub 2024 Jul 12.
The pursuit of energy-saving materials and technologies has garnered significant attention for their pivotal role in mitigating both energy consumption and carbon emissions. In particular, thermochromic windows in buildings offer energy-saving potential by adjusting the transmittance of solar irradiation in response to temperature changes. Radiative cooling (RC), radiating thermal heat from an object surface to the cold outer space, also offers a potential way for cooling without energy consumption. Accordingly, smart window and RC technologies based on thermochromic materials can play a crucial role in improving energy efficiency and reducing energy consumption in buildings in response to the surrounding temperature. Vanadium dioxide (VO) is a promising thermochromic material for energy-saving smart windows and RC due to its reversible metal-to-insulator transition, accompanying large changes in its optical properties. This review provides a brief summary of synthesis methods of VO nanostructures based on nanoparticles and thin films. Moreover, this review emphasizes and summarizes modulation strategies focusing on doping, thermal processing, and structure manipulation to improve and regulate the thermochromic and emissivity performance of VO for smart window and RC applications. In last, the challenges and recent advances of VO-based smart window and RC applications are briefly presented.
对节能材料和技术的追求因其在降低能源消耗和碳排放方面的关键作用而备受关注。特别是，建筑中的热致变色窗户通过响应温度变化调节太阳辐射的透过率，具有节能潜力。辐射冷却（RC），即从物体表面向寒冷的外层空间辐射热，也为无能耗冷却提供了一种潜在途径。因此，基于热致变色材料的智能窗户和RC技术在响应周围温度提高建筑能源效率和降低能耗方面可以发挥关键作用。二氧化钒（VO）因其可逆的金属-绝缘体转变以及伴随的光学性质的巨大变化，是一种用于节能智能窗户和RC的有前途的热致变色材料。本文综述简要总结了基于纳米颗粒和薄膜的VO纳米结构的合成方法。此外，本文综述强调并总结了侧重于掺杂、热处理和结构操纵的调制策略，以改善和调节VO在智能窗户和RC应用中的热致变色和发射率性能。最后，简要介绍了基于VO的智能窗户和RC应用的挑战和最新进展。
