Access
to new superconducting phases in transition-metal dichalcogenides
(TMDs) via pressure treatment has been the primary target in this
field. As equally essential as the fabrication of new superconducting
materials at high pressure, maneuvering new superconducting phases
at moderate pressures is also one of the core goals in the synthesis
community. Here, we successfully reduced the synthesized pressure
of the superconducting phase in ReSe2 by combining V-doping
and high-pressure techniques, with a reduction in pressure of 50%
in contrast to ReSe2. Our electrical transport measurements
displayed that metallization appeared at 10 GPa and subsequently superconductivity
appeared at about 52.4 GPa with T
c ∼
1.9 K. There was a giant reduction in the stable pressure of the superconducting
phase derived from the d-electrons and interlayer interaction changes,
as evidenced by the Hall effect and X-ray diffraction measurements.
These findings serve as ideal starting points and guidance for designing
superconducting TMDs at moderate pressures.