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Aspects in Mining & Mineral Science

Graphene Oxides/Porous Silicon Heterostructure for CO Sensors

Submission: April 28, 2021; Published: May 18, 2021

DOI: 10.31031/AMMS.2021.06.000642

ISSN : 2578-0255
Volume6 Issue4


Graphene oxide is compound made up of carbon, hydrogen and oxygen molecules and the material (semiconductor or insulator) depend on the degree of oxidation and their electronic properties can be tuned in large scope. The current-voltage (I-V) characteristics of n-Graphene oxide/p-Porous silicon (GO/PS) structures in the normal air and CO atmosphere were investigated. The generation of an open-circuit voltage at CO atmosphere for GO/PS structure at room temperature was observed. The sensitivity of GO/PS structures to CO molecules can be used as CO sensors. The mechanism of generation of electricity in GO/PS structure can be related to chemical interaction of CO composition, couples of water and creation of electrons in H2 molecules.

Keywords: Nano-Graphene oxide; Porous silicon; CO gas; Graphene oxide/Porous silicon sensor

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