| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-light-emitting road rivet achieved in stable light emission for a long term at night by suppressing the deterioration of the discharge efficiency of a storage battery caused by a low temperature.SOLUTION: The self-light-emitting road rivet includes a solar cell 120, a solid-phase type storage battery 130 storing power generated by the solar cell 120, a light-emitting element 140, and a light-collecting member 150 condensing the solar light in the solid-phase type storage battery 130. Furthermore, the self-light-emitting road rivet is equipped with the solar cell 120, and the solar cell 120 includes a photoelectric conversion layer 121, surface electrodes 122 discretely formed on the surface of the photoelectric conversion layer, and back-side electrodes 123 discretely formed on the back-side surface of the photoelectric conversion layer, the solid phase type storage battery 130 which is arranged directly under the solar cell 120 and stores electric power generated in the solar cell 120, and the light-emitting element 140. |
