2018 · Journal of Materials Chemistry C 6, 8444

IR position-sensitive detectors based on double-junction asymmetric TiO₂/MoS₂/reduced graphene-oxide sandwiches

M. Javadi, M. Gholami, Y. Abdi
In brief

A self-powered infrared position sensor built from a stack of 2D MoS₂ grown by CVD on reduced graphene oxide, capped with TiO₂.

Key results
  • Photocurrent sensitivity above 5000 nA/mm and photovoltage sensitivity above 20 mV/mm.
  • Nonlinearity below 1% and a correlation coefficient of 1.000 above 4 mW/cm².
  • Lateral photovoltage explained by the band alignment of the asymmetric stack.
Cite
M. Javadi, M. Gholami, Y. Abdi, "IR position-sensitive detectors based on double-junction asymmetric TiO₂/MoS₂/reduced graphene-oxide sandwiches," Journal of Materials Chemistry C 6, 8444 (2018). https://doi.org/10.1039/c8tc02361a
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