Lead-free double perovskite halide fluorescent oxygen sensor with high stability |
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| Affiliation: | 1. Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun, 130012, China;2. Key Laboratory of Femtosecond Laser, College of Physics, Jilin University, Changchun, 130012, China;1. Anhui Engineering Research Center for High Efficiency Intelligent Photovoltaic Module, Chaohu University, Hefei, 238000, China;2. College of Mechanical Engineering, Chaohu University, Hefei, 238000, China;1. Materials and Structures Division, NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, OH, 44135, USA;2. University of Toledo, Toledo, OH, USA;1. Ioffe Institute, St. Petersburg, 194021, Russia;2. Tananaev Institute of Chemistry and Technology of Rare Elements and Minerals (separate Subdivision), Kola Scientific Center (Federal Research Center), Russian Academy of Sciences, Apatity, Murmansk Oblast, 184209, Russia;1. Laboratório de Materiais Vítreos, Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, 13565-905, São Carlos, SP, Brazil;2. Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, 90610-000, Porto Alegre, RS, Brazil;3. Universidade Federal de Ciências da Saúde de Porto Alegre, 90050-170, Porto Alegre, RS, Brazil;4. Instituto de Pesquisa Com Células-tronco, 90020-010, Porto Alegre, RS, Brazil;5. Faculdade de Odontologia de Araçatuba, Departamento de Odontologia Preventiva e Restauradora, Universidade Estadual Paulista Júlio de Mesquita Filho, 16015-050, Araçatuba, SP, Brazil;6. Laboratório de Ensaios Antimicrobianos, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, 38400-902, Uberlândia, MG, Brazil;1. School of Mechanical Engineering, Henan University of Technology, Zhengzhou, 450001, PR China;2. School of Materials Science and Engineering, Henan University of Technology, Zhengzhou, 450001, PR China;3. State Key Laboratory of Power Metallurgy, Central South University, Changsha, 410083, PR China;4. Faculty of Engineering and Information Sciences, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia;5. State Key Lab of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan, 430070, China;1. College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Rare-Earth Functional Materials and Devices Development, Baoji University of Arts and Sciences, Baoji, 721016, China;2. College of Physics and Optoelectronic Technology, Baoji University of Arts and Sciences, Baoji, 721013, China;3. School of Physics, Xidian University, Xi''an, 710071, China |
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| Abstract: | Oxygen sensors, using organic-inorganic and all-inorganic lead halide perovskites, have demonstrated huge advantages in operating temperature, responding time, and reversing oxygen content detection. Nevertheless, the toxicity and instability issues hinder their wide application. In this work, for the first time, we report a sensitive fluorescence oxygen detector based on lead-free double perovskite Cs2AgBiBr6 thin film. The sensor has a remarkable performance in terms of fast response time of ≈56 s, recovery time of ≈91 s, and a relatively low limit of detection (LOD) of 150 ppm. More importantly, the unencapsulated sensor still exhibits an obvious response at low oxygen concentrations after two-week storage in ambient, and the device also exhibits good humidity, light, and thermal stability. Consequently, the lead-free double perovskite (Cs2AgBiBr6) will be promising environmentally friendly material in developing reversible, sensitive, high-efficiency, and stable perovskite oxygen sensors. |
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| Keywords: | Double perovskite Lead-free Fluorescence Oxygen sensor High stability |
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