Introduction of cooperating conductive components into the phosphor to improve the low voltage cathodoluminescence

► In2O3/Cu NWs were introduced in Y2O3:Eu3+ phosphor to improve the low voltage cathodoluminescence. ► In2O3/Cu NWs play different key roles in the formation of electrically conductive network. ► The cooperating effect was proved by comparing the experimental data and the calculated results. ► The low voltage cathodoluminescence was significantly improved.