Nano-scale carbon onions produced by laser photolysis of toluene for detection of optical, humidity, acetone, methanol and ethanol stimuli
Sensors and Actuators B: Chemical(2015)
Abstract
•Laser liquid medium pyrolysis synthesis of onion likes carbon (OLC) and growth mechanism.•The semiconductor switching characteristic (from p- to n-type) of OLC hierarchical structure with relative humidity.•Highly selective to the alcohol than acetone and insensitive to the dry gases like CH4, CO, etc.•The OLCs reveals a photoelectric effect as well.
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Key words
Laser liquid medium pyrolysis,OLC,p- to n- type transition semiconductor,Light sensor,Humidity and VOC sensor
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