Vertical 3D GaN Nanoarchitectures towards an Integrated Optoelectronic Biosensing Platform in Microbial Fuel Cells

Proceedings

Boht, Heidi¹ 

关键词: microbial fuel cell (MFC);    electrochemically active biofilms;    gallium nitride;    biocompatibility;    nanowires;    optoelectronic integrated microchip;   

DOI  :  10.3390/proceedings1040508

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

An integrated nano-optoelectronic biological sensor system is developed to obtain insights of the biochemical and physical processes of Geobacter sulfurreducens-based biofilm growth inside a miniaturized microbial fuel cell (MFC) reactor. Gallium nitride (GaN), which was used as a novel electrode material, has been investigated in terms of its biocompatibility and performance to transport the electrons delivered by the microorganisms. Moreover, in order to enhance the produced current density, vertical 3D GaN nanoarchitectures (i.e., arrays of nanowires and nanofins) with larger surface-to-volume ratios were fabricated using a top-down nanomachining method involving nanolithography and hybrid etching technique.

【 授权许可】

CC BY