Laser writing may enable ‘electronic nose’ for multi-gas sensor

Science Daily  June 30, 2022 Laser-induced thermal voxels (LITV) offer a facile platform to directly integrate nanocrystalline metal oxide and mixed metal oxide materials onto heating platforms, with access to a wide variety of compositions and morphologies including many transition metals and noble metals. Researchers at Pennsylvania State University combined laser writing and responsive sensor technologies to fabricate the first highly customizable microscale gas sensing devices. They investigated the sensing performance of a representative set of n-type and p-type LITV-deposited metal oxides and their mixtures (CuO, NiO, CuO/ZnO, and Fe2O3/Pt) in response to reducing and oxidizing gases (H2S, NO2, NH3, […]