Tunneling effect due to UV irradiation in organic Cu-Pc/<TEX>$Bi_2$</TEX><TEX>$Sr_2$</TEX>Ca<TEX>$Cu_2$</TEX><TEX>$O_{8+<TEX>$delta$</TEX>}$</TEX> tunnel junction

We studied the nonequilibrium superconductivity due to tunnel injection of polaronic quasiparticle (QP) from organic photoconductor. The transport properties of an organic copper (II) phthalocyanine (Cu -Pc)/d-wave superconductor were investigated in dark and under ultraviolet (UV) radiation for performance of a novel <TEX>$high -T_{c}$</TEX> superconducting three terminal device. We observed that the injection of polaronic QP from the organic Cu -Pc film into the <TEX>$Bi_2$</TEX>S <TEX>$r_2$</TEX><TEX>$CaCuO_{8+{delta}}$</TEX> film generated a substantially larger nonequilibrium effect as compared to the normal QP injection current. We could increase the current gain by UV excitation of the organic photoconductor injector. The tunneling spectroscopy of a Cu -Pc/BSCCO junction exhibited a small enhancement of the zero bias conductance peak under the W excitation. The above phenomena are of importance in developing optically controlled three terminal superconducting device.e.