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Self-assembled monolayer functionalized NiO nanowires: strategy to enhance the sensing performance of p-type metal oxide.

Navpreet KaurMandeep SinghAndrea CasottoLuigi SangalettiElisabetta Comini
Published in: Chemical communications (Cambridge, England) (2023)
A novel strategy for the improvement in the sensing performance of p-type NiO is developed by employing the unique functional properties of self-assembled monolayers. Specifically, hole concentration near the surface of NiO nanowires (NWs) is modulated by terminal epoxy groups of the organosilane. This modulation leads to the increase in electron transfer from reducing gases to NWs surface. As a result, SAM-functionalized sensors showed 9-times higher response at low-temperature as compared to bare NiO NWs.
Keyphrases
  • electron transfer
  • room temperature
  • quantum dots
  • reduced graphene oxide
  • molecularly imprinted
  • perovskite solar cells