I-Corps: Dynamic Glazing Technology Based on Nanostructured Vanadium Oxides

I-Corps：基于纳米结构氧化钒的动态玻璃技术

• 批准号: 1333405
• 负责人: Sarbajit Banerjee
• 金额: $ 5万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-01 至 2013-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1333405&HistoricalAwards=false
• 关键词: Corps; Dynamic; Glazing; Technology; Based

The proposed I-Corps effort will investigate the potential of dynamic glazing based on the metal-insulator transitions of vanadium oxides (VO2) as an alternative to existing technologies. The proposed research effort will seek to maximize the visible light transmittance of nanostructured VO2 coatings by combining the coatings with an anti-reflective titanium-oxide layer. Nanostructured VO2 laminates will be developed and the infrared transmission/reflection properties will be systematically examined across the phase transition temperatures. The project plans to identify and prioritize impediments to technological realization of switchable vanadium oxide nanomaterials in thermally and electrically responsive fenestration. Most solar heat gain in buildings occurs via transmission of infrared radiation through windows, doors, and glazed skylights. In warm climates, solar heat gain must be mitigated through the use of air-conditioning, which leads to substantial energy consumption. Current strategies to mitigate solar heat gain take the form of aesthetically unappealing drapery or static metallic coatings that are prohibitively expensive while diminishing the use of natural daylight, thereby leading to increased use of artificial lighting, and, because these technologies are static across all temperatures, an elimination of the offset in wintertime heating costs that would otherwise be provided due to solar heat gain. The dual thermochromic and electrochromic functionality that can be achieved in nanostructured vanadium oxide thin films will be potentially transformative for the fenestration, automotive, and consumer glass industries. Switchable glazing technologies based on the metal-insulator transitions of vanadium oxides could provide substantial energy savings while permitting better use of natural lighting. Further development of this technology has the potential to provide end users with lower recurrent utility costs, increased comfort, and improved aesthetics while substantially reducing the carbon footprint of the building.

拟议的i-Corps工作将调查基于钒氧化物(VO2)的金属-绝缘体转变的动态上釉作为现有技术的替代方案的潜力。拟议的研究工作将寻求通过将纳米结构VO2涂层与抗反射钛氧化物涂层相结合来最大化可见光透过率。将开发纳米结构VO2叠层材料，并系统地检测其在不同相变温度下的红外透射率/反射率。该项目计划确定在热和电响应窗口中实现可切换氧化钒纳米材料的技术实现的障碍并确定其优先顺序。建筑物中的大部分太阳热是通过通过窗户、门和玻璃天窗的红外辐射传输而获得的。在温暖的气候中，必须通过使用空调来缓解太阳热量的增加，这会导致大量的能源消耗。目前减少太阳热获取的战略采取的形式是在美学上不美观的窗帘或静态金属涂层，这些涂层昂贵得令人望而却步，同时减少了对自然日光的使用，从而导致更多地使用人工照明，并且由于这些技术在所有温度下都是静态的，因此消除了原本因太阳热获取而提供的冬季供暖成本的抵消。在纳米结构氧化钒薄膜中可以实现的双重热致变色和电致变色功能将对窗口、汽车和消费玻璃行业产生潜在的变革。基于钒氧化物的金属-绝缘体转变的可切换玻璃技术可以提供大量的节能，同时允许更好地利用自然照明。这项技术的进一步发展有可能为最终用户提供更低的经常性公用事业成本、更高的舒适性和更好的美观，同时大幅减少建筑的碳足迹。