Developing "smart windows" for optical storage and temperature sensing based on KNN transparent ceramics |
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| Affiliation: | 1. Department of Material Science and Engineering, Fuzhou University, Fuzhou 350108, China;2. Department of Microelectronic Science and Engineering, Ningbo University, Ningbo 315211, China;3. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China;1. Sichuan Prov Key Lab Informat Mat, Southwest Minzu University, Chengdu, 610041, China;2. Sichuan Province Key Laboratory of Information Materials and Devices Application, Chengdu University of Information Technology, Chengdu, 610064, China;1. Functional Materials and Acousto-optic Instruments Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China;2. Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516001, China;3. School of Physics and Electronic Engineering, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, China;1. School of Materials Science & Engineering, Shaanxi University of Science & Technology, Xi''an 710021, China;2. School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454003, China;3. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi''an Jiaotong University, Xi''an 710049, China;4. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;5. State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;2. University of the Chinese Academy of Sciences, Beijing 100049, China;3. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350002, China;4. College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China;1. State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;2. Hubei Longzhong Laboratory, Xiangyang 441000, Hubei, China |
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| Abstract: | Smart windows have attracted considerable attention due to their wide applications in optical data storage, switchable sunroof and temperature sensing. The development strategy for smart windows is focused on performance design, enhancement and integration. However, developing integrated multi-functional smart windows in a single material remains a challenge. In this work, we have successfully prepared (K0.5Na0.5)0.95Ba0.04Er0.01NbO3 (4Ba-1Er-KNN) transparent ceramics for potential applications of temperature detection and optical information storage in smart windows. With alternating ultraviolet (UV) illumination and 300 °C thermal stimulation, the prepared 4Ba-1Er-KNN ceramics can not only achieve non-destructive luminescence readout, but also exhibits an ultra-high photochromic (PC) contrast with rapid response time of 1 s. Furthermore, based on the up-conversion (UC) photoluminescence (PL) intensity ratio of Er3+: 2H11/2/4S3/2 thermally coupled levels, excellent low-temperature sensing performance with the maximum relative sensitivity of 0.023 K?1 at 213 K is obtained. The integration between UC PL, PC response and temperature sensing performance makes it possible to develop multi-functional smart windows. |
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| Keywords: | Photochromic Optical temperature sensing Transparent ceramics Smart windows |
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