  A smart meta-superconductor Bi(Pb)SrCaCuO (B(P)SCCO) may increase the
critical transition temperature (TC) of B(P)SCCO by electroluminescence (EL)
energy injection of inhomogeneous phases. However, the increase amplitude
{\Delta}TC ({\Delta}TC=TC-T(C,pure)) of TC is relatively small. In this study,
a smart meta-superconductor B(P)SCCO with different matrix sizes was designed.
Three kinds of raw materials with different particle sizes were used, and
different series of Y2O3:Sm3+, Y2O3, Y2O3:Eu3+, and Y2O3:Eu3++Ag doped samples
and pure B(P)SCCO were prepared. Results indicated that the TC of the Y2O3 or
Y2O3:Sm3+ non-luminescent dopant doping sample is lower than that of pure
B(P)SCCO. However, the TC of the Y2O3:Eu3++Ag or Y2O3:Eu3+ luminescent
inhomogeneous phase doping sample is higher than that of pure B(P)SCCO. With
the decrease of the raw material particle size from 30 to 5 {\mu}m, the
particle size of the B(P)SCCO superconducting matrix in the prepared samples
decreases, and the doping content of the Y2O3:Eu3++Ag or Y2O3:Eu3+ increases
from 0.2% to 0.4%. Meanwhile, the increase of the inhomogeneous phase content
enhances the {\Delta}TC. When the particle size of raw material is 5 {\mu}m,
the doping concentration of the luminescent inhomogeneous phase can be
increased to 0.4%. At this time, the zero-resistance temperature and onset
transition temperature of the Y2O3:Eu3++Ag doped sample are 4 and 6.3 K higher
than those of pure B(P)SCCO, respectively.
