Microfabricable ratiometric gaseous oxygen sensors based on inorganic perovskite nanocrystals and PtTFPP

Wu, Shanshan1; Fan, Zengju1; Wang, Weichuan1; Fan, Hongting1; Mei, Zhipeng1; Sun, Dazhi1; Cheng, Xing1; Zhao, Xingzhong2; Tian, Yanqing1

2018-10-15

10.1016/j.snb.2018.05.074

SENSORS AND ACTUATORS B-CHEMICAL   影响因子和分区

0925-4005

Perovskite nanocrystals (PNCs) have emerged as advanced materials for various applications. Herein, we developed oxygen insensitive PNCs in polymer matrices and applied them as internal reference to achieve ratiometric sensing for oxygen. Significant emission color changes from orange under nitrogen to green under oxygen were observed. Further micro-patterned sensors were prepared by micro/nano-imprint technology. Results showed that all these micro-structures increased sensors' sensitivity, however, affected sensors response time significantly. The film with pinholes slowed down the response times; the films with pillars shorted the response time. Therefore, for the first time we prepared new PNCs-based ratiometric gaseous oxygen sensing films and further prepared micro-structured sensors. This study may broaden the applications of perovskite materials and also oxygen sensors.

Perovskite (CsPbBr3) nanocrystals Oxygen sensors Ratiometric sensors Imprinted patterns

SCI ; EI

英语

第一 ; 通讯

Peacock Team Project funding from Shenzhen Science and Technology Innovation Committee[KQTD2015033110182370]

Chemistry ; Electrochemistry ; Instruments & Instrumentation

Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation

WOS:000436481200013

ELSEVIER SCIENCE SA

20182205241053

Bromine compounds ; Lead compounds ; Micromachining ; Microstructure ; Nanocrystals ; Oxygen sensors ; Perovskite

Minerals:482.2 ; Machining Operations:604.2 ; Nanotechnology:761 ; Materials Science:951

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Wuhan Univ, Dept Phys, Wuhan 430072, Hubei, Peoples R China

Wu, Shanshan,Fan, Zengju,Wang, Weichuan,et al. Microfabricable ratiometric gaseous oxygen sensors based on inorganic perovskite nanocrystals and PtTFPP[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,271:104-109.

Wu, Shanshan.,Fan, Zengju.,Wang, Weichuan.,Fan, Hongting.,Mei, Zhipeng.,...&Tian, Yanqing.(2018).Microfabricable ratiometric gaseous oxygen sensors based on inorganic perovskite nanocrystals and PtTFPP.SENSORS AND ACTUATORS B-CHEMICAL,271,104-109.

Wu, Shanshan,et al."Microfabricable ratiometric gaseous oxygen sensors based on inorganic perovskite nanocrystals and PtTFPP".SENSORS AND ACTUATORS B-CHEMICAL 271(2018):104-109.