Photo-conversion quantum dot, solar light collector and solar light collection device

The invention relates to a photo-conversion quantum dot which is of a core-shell structure. A core of the quantum dot is a silver indium selenium sulfur quantum dot, and a shell layer is a zinc sulfide layer. The photo-conversion quantum dot can convert high-energy photons without or having little photovoltaic effect into low-energy photons having efficient photovoltaic effect, photoelectric conversion efficiency of existing solar power generation systems is improved, and light can be collected; the photo-conversion quantum dot has potential to be applied in neutral-color transparent intelligent windows, and photovoltaic building integration is realized.