biostudies-literatureLai CYMinistry of Science and Technology, Taiwan2000041https://www.ebi.ac.uk/biostudies/studies/S-EPMC7607247biostudies-literatureUnknown4(11)The development of SnO₂ and TiO₂ polycrystalline nanofiber devices (PNFDs) has been widely researched as a method of protecting humans from household air pollution. PNFDs have three significant advantages. The nanofibers before the annealing process are polymer-rich materials, which can be used as particulate material (PM) filters. The multiporous nanofibers fabricated by the annealing process have numerous defects that can serve as generation-recombination centers for electron-hole pairs, enabling the PNFDs to serve as multiple-wavelength light (from 365 to 940 nm) detectors. Lastly, the numerous surface/interface defects can drastically enhance the toxic gas detection ability. The toxic gas detection range of PNFDs for CO_(g) and NO_(g) is from 4Global challenges (Hoboken, NJ)Enhancement in the Detection Ability of Metal Oxide Sensors Using Defect-Rich Polycrystalline Nanofiber Devices.PMC7607247MOST 107‐2112‐M‐032‐006MOST 106‐2119‐M‐009‐008MOST‐109‐2634‐F‐009‐029MOST 106‐2628‐E‐009‐002‐MY3Lin YTYeh PHWang DYLai CYWu WWHsu HKfalseEnhancement in the Detection Ability of Metal Oxide Sensors Using Defect-Rich Polycrystalline Nanofiber Devices.The development of SnO₂ and TiO₂ polycrystalline nanofiber devices (PNFDs) has been widely researched as a method of protecting humans from household air pollution. PNFDs have three significant advantages. The nanofibers before the annealing process are polymer-rich materials, which can be used as particulate material (PM) filters. The multiporous nanofibers fabricated by the annealing process have numerous defects that can serve as generation-recombination centers for electron-hole pairs, enabling the PNFDs to serve as multiple-wavelength light (from 365 to 940 nm) detectors. Lastly, the numerous surface/interface defects can drastically enhance the toxic gas detection ability. The toxic gas detection range of PNFDs for CO_(g) and NO_(g) is from 42020-01-01T00:00:00Z2020 Nov2025-04-04T10:25:15.517Z2020-11-09T08:47:34ZS-EPMC76072473316322510.1002/gch2.202000041