Generation of nanogaps on porous ZnO sheets via Li-ion implantation: NO2 gas sensing with ultrafast recovery time

Impact of oxygen vacancies on enhanced NO2 gas sensing performance of lithium doped Co:ZnO thin films

“…Among the transition metals, Cobalt (Co) doped ZnO exhibits superior electron transport, tailored band structure, and increased surface reactivity that will enhance NO 2 gas sensing capabilities [9,10]. A number of research groups have claimed that using alkali metals to modify the physical and chemical properties of ZnO can improve the detection of gas [2,[11][12][13]. Besides, our previous studies showed that Li-doped ZnO has a remarkable NO 2 gas-detecting response [14].…”