NOVELTY - A power generating device of solar thermal electric generator comprises multi-core stacked architecture that converts sunlight to heat to electricity. The solar thermal electric generator comprises unit for collecting and reflectively concentrating direct solar photon energy. The solar energy is collected by parabolic solar dish or other form of solar reflector and focused through thermal energy trapping windows onto black body thermal collector.    USE - A power generating device of solar thermal electric generator.    ADVANTAGE - The multi-cores stack architecture is capable of thermal and temperature management to optimize efficiency by operating thermal electric materials at highest thermal electric efficiency. The power generating device reuses and reduces heat loss from thermal collector side that maximally generates electricity using managing thermal side and non-thermal side. The system is simplified in that it utilizes almost 100% solar spectrum, and broadband photons have extremely high solar photon to heat conversion efficiency with insignificant loss. The generator provides for solid state solar photonic to electric energy conversion without the requirement for any moving parts of intermediate materials.    DETAILED DESCRIPTION - A power generating device of solar thermal electric generator comprises multi-core stacked architecture that converts sunlight to heat to electricity. The solar thermal electric generator comprises unit for collecting and reflectively concentrating direct solar photon energy. The solar energy is collected by parabolic solar dish or other form of solar reflector and focused through thermal energy trapping windows onto black body thermal collector. The thermal collector is integrated with insulated thermal storage mass which retains heat to extend electrical generation over interruptions in solar incidence and for extended time after solar incidence has ceased. The solar thermal electric generator is also provided with unit for limiting direct solar incidence onto shaded back side of multi-core device and additional unit for tracking horizontally and vertically to optimize incidence of solar light for reflected concentration onto multi-core generator.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of a solar thermal electric generator.