  Superconducting materials exhibit unique physical properties and hold great
scientific value and vast industrial application prospects. However, due to
limitations such as critical temperature (TC) and critical current density
(JC), the large-scale application of superconducting materials remains
challenging. Chemical doping has been a commonly used method to enhance the
superconductivity of B(P)SCCO. However, satisfactory enhancement results have
been difficult to achieve. In this study, we introduced green light GaN p-n
junction particles as inhomogeneous phases into B(P)SCCO polycrystalline
particles to form a smart meta-superconductors (SMSCs) structure. Based on the
electroluminescence properties of the p-n junction, the Cooper pairs were
stimulated and strengthened to enhance the superconductivity of B(P)SCCO.
Experimental results demonstrate that the introduction of inhomogeneous phases
can indeed enhance the critical temperature TC, critical current density JC,
and complete diamagnetism (Meissner effect) of B(P)SCCO superconductors.
Moreover, When the particle size of raw material of B(P)SCCO is reduced from
30{\mu}m to 5{\mu}m, the grain size of the sintered samples also decreases, and
the optimal doping concentration of the inhomogeneous phases increases from
0.15 wt.% to 0.2 wt.%, further improving the enhancement of superconductivity.
