Zhilin Xia, Lintao Li, Kailiang Shi, Zhen Fang, Xiaochun Fan
Abstract. The principle of radiative cooling is to radiate the extra heat energy of Earth into outer space, and a lot of progress has been made in recent years. Radiative cooling is significantly affected by the air quality, and coolers reported at present only work well under a clear sky. Moreover, most of the world’s industrial cities are facing serious haze problems; thus improving the cooling performance under haze conditions needs to be addressed. We propose a water evaporation assisted radiative cooling technique, and the experimental results showed a remarkable subambient cooling of 6.4°C in daytime haze.
{"title":"Using passive evaporation to improve radiative cooling performance","authors":"Zhilin Xia, Lintao Li, Kailiang Shi, Zhen Fang, Xiaochun Fan","doi":"10.1117/1.JPE.12.012113","DOIUrl":"https://doi.org/10.1117/1.JPE.12.012113","url":null,"abstract":"Abstract. The principle of radiative cooling is to radiate the extra heat energy of Earth into outer space, and a lot of progress has been made in recent years. Radiative cooling is significantly affected by the air quality, and coolers reported at present only work well under a clear sky. Moreover, most of the world’s industrial cities are facing serious haze problems; thus improving the cooling performance under haze conditions needs to be addressed. We propose a water evaporation assisted radiative cooling technique, and the experimental results showed a remarkable subambient cooling of 6.4°C in daytime haze.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"012113 - 012113"},"PeriodicalIF":1.7,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46458548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Continued Need for Higher Efficiency Photovoltaics","authors":"S. Shaheen","doi":"10.1117/1.jpe.11.040101","DOIUrl":"https://doi.org/10.1117/1.jpe.11.040101","url":null,"abstract":"","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43919447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract. We demonstrate a simple, low-cost design of a selectively emissive radiative cooler using scotch tape and aluminum foil, which can be further augmented by higher quality metal deposition methods. This do-it-yourself radiative cooler achieves solar reflectance, long wavelength infrared emittance, and optical selectivity comparable to state-of-the art designs and is experimentally demonstrated as achieving a 7°C subambient temperature drop at night for the aluminized scotch tape and an average 2°C drop under a solar illumination of 965 W / m2 for the silvered scotch tape. In addition, an 11°C subambient temperature drop at night for the aluminized scotch tape was obtained when a convection shield was used. Detailed optical properties are presented for an ultrawide wavelength range and a ∼2π angle of emittance. Given its ease of fabrication and performance, we propose this set of materials as a control for future radiative cooling experiments and an effective radiative cooling accessory for passive cooling designs.
摘要我们展示了一种简单，低成本的设计，选择性发射辐射冷却器使用透明胶带和铝箔，可以通过更高质量的金属沉积方法进一步增强。这款自制辐射冷却器实现了与最先进设计相当的太阳反射率、长波红外发射率和光学选择性，实验证明，镀铝透明胶带在夜间可实现7°C的亚环境温度下降，镀银透明胶带在965 W / m2的太阳光照下可实现2°C的平均下降。此外，当使用对流屏蔽时，镀铝透明胶带的夜间亚环境温度下降了11°C。详细的光学性质给出了超宽波长范围和发射角~ 2π。鉴于其易于制造和性能，我们提出这组材料作为未来辐射冷却实验的控制和被动冷却设计的有效辐射冷却附件。
{"title":"Do-it-yourself radiative cooler as a radiative cooling standard and cooling component for device design","authors":"Xin Huang, Jyotirmoy Mandal, A. Raman","doi":"10.1117/1.JPE.12.012112","DOIUrl":"https://doi.org/10.1117/1.JPE.12.012112","url":null,"abstract":"Abstract. We demonstrate a simple, low-cost design of a selectively emissive radiative cooler using scotch tape and aluminum foil, which can be further augmented by higher quality metal deposition methods. This do-it-yourself radiative cooler achieves solar reflectance, long wavelength infrared emittance, and optical selectivity comparable to state-of-the art designs and is experimentally demonstrated as achieving a 7°C subambient temperature drop at night for the aluminized scotch tape and an average 2°C drop under a solar illumination of 965 W / m2 for the silvered scotch tape. In addition, an 11°C subambient temperature drop at night for the aluminized scotch tape was obtained when a convection shield was used. Detailed optical properties are presented for an ultrawide wavelength range and a ∼2π angle of emittance. Given its ease of fabrication and performance, we propose this set of materials as a control for future radiative cooling experiments and an effective radiative cooling accessory for passive cooling designs.","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"12 1","pages":"012112 - 012112"},"PeriodicalIF":1.7,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45630814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical engineering for efficient white perovskite light-emitting devices","authors":"H. Yip","doi":"10.1117/12.2602588","DOIUrl":"https://doi.org/10.1117/12.2602588","url":null,"abstract":"","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"13 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87580847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Perovskite interface microstructures: on and beyond grain boundaries","authors":"Yuanyuan Zhou","doi":"10.1117/12.2602039","DOIUrl":"https://doi.org/10.1117/12.2602039","url":null,"abstract":"","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"17 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87859257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Manipulating the crystalline morphology in the non-fullerene acceptor mixture to accelerate the carrier transport and suppress the energetic disorder","authors":"Ming Zhang, Lei Zhu, Feng Liu","doi":"10.1117/12.2602306","DOIUrl":"https://doi.org/10.1117/12.2602306","url":null,"abstract":"","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"41 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78995386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of high-performance inverted perovskite solar cells","authors":"Wei Zhang","doi":"10.1117/12.2601030","DOIUrl":"https://doi.org/10.1117/12.2601030","url":null,"abstract":"","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"32 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89439654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Surface science in metal halide perovskite materials and devices","authors":"Y. Qi","doi":"10.1117/12.2602108","DOIUrl":"https://doi.org/10.1117/12.2602108","url":null,"abstract":"","PeriodicalId":16781,"journal":{"name":"Journal of Photonics for Energy","volume":"30 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75385187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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