Surface Superoxide Complex Defects‐Boosted Ultrasensitive ppb‐Level NO 2  Gas Sensors | Zendy

Li Yuxiang | Zendy; Zu Baiyi | Zendy; Guo Yanan | Zendy; Li Kun | Zendy; Zeng Haibo | Zendy; Dou Xincun | Zendy

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Surface Superoxide Complex Defects‐Boosted Ultrasensitive ppb‐Level NO 2 Gas Sensors

Author(s) -

Li Yuxiang,

Zu Baiyi,

Guo Yanan,

Li Kun,

Zeng Haibo,

Dou Xincun

Publication year - 2016

Publication title -

small

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.785

H-Index - 236

eISSN - 1613-6829

pISSN - 1613-6810

DOI - 10.1002/smll.201503111

Subject(s) - chemiresistor , nanoflower , computer science , nanotechnology , process (computing) , materials science , process engineering , engineering , operating system , nanostructure

Sn 4+ – O 2 −• centers are intentionally created in SnO 2 nanoflowers by a thermodynamically instable synthetic process. The resulting SnO 2 nanoflower‐based sensor is confirmed to be the most sensitive ppb‐level chemiresistor NO 2 sensor to date. The Sn 4+ –O 2 −• centers with strong gas‐adsorbing and high eletron‐donating capability towards NO 2 molecules decisively determine the sensor sensitivity.

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