NOVELTY - A five-junction-semiconductor solar photovoltaic battery chip consists of a germanium single chip provided with, on a substrate, batteries, nucleating layer, buffering layer, potential barrier layers, tunnel nodes, window layers, and an ohm contact layer, in specific sequence.    USE - Five-junction-semiconductor solar photovoltaic battery chip.    ADVANTAGE - The five-junction-semiconductor solar photovoltaic battery chip has excellent photoelectric conversion efficiency, as a large amount of energy flows of sun radiation distributed on visible light and UV wavebands is absorbed.    DETAILED DESCRIPTION - A five-junction-semiconductor solar photovoltaic battery chip consists of a germanium (Ge) single chip orderly provided with, on a substrate, a bottom battery (p-Ge, n-Ge), a nucleating layer (gallium arsenide), a buffering layer (gallium-indium arsenide), a potential barrier layer (n-gallium-indium arsenide), tunnel node (I) (n++-aluminum-gallium arsenide, p++-gallium-indium arsenide), a potential barrier layer (p+-gallium-indium arsenide), battery (II) (p-gallium-indium arsenide, n-gallium-indium arsenide), window layer (I) (n+-aluminum-gallium-indium phosphide/aluminum-indium arsenide), tunnel node (II) (n++-aluminum-gallium arsenide, p++-gallium-indium arsenide), potential barrier layer (II) (p+-gallium-indium arsenide), battery (III) (p-gallium-indium arsenide, n-gallium-indium arsenide), window layer (II) (n+-aluminum phosphide antimonide), tunnel node (III) (n++-aluminum phosphide antimonide, p++-aluminum phosphide antimonide), potential barrier layer (III) (p+-aluminum phosphide antimonide), battery (IV) (p-aluminum phosphide antimonide, n-aluminum phosphide antimonide), window layer (III) (n+-aluminum phosphide antimonide), tunnel node (IV) (n++-zinc sulfide selenide, p++-zinc sulfide selenide), potential barrier layer (n+-zinc sulfide selenide), a top battery (p-zinc sulfide selenide, n-zinc sulfide selenide), window layer (IV) (n+-zinc sulfide selenide), and an ohm contact layer (n+-zinc sulfide selenide).