The invention relates to the technical field of photovoltaic cells, in particular to a photovoltaic
cell and a photovoltaic module. The photovoltaic
cell adopts a
heterojunction structure, and the core is that TCO (Transparent
Conductive Oxide) films are respectively arranged on the front surface and the back surface of a
solar cell piece as transparent conductive film
layers and are positioned on the outermost layer. A
first light conversion layer containing first
quantum dots is arranged outside the front transparent conductive film layer, and a second light conversion layer containing second
quantum dots is arranged on the back; or the light conversion
layers are added between the transparent conductive film layer and the corresponding electrodes. The first
quantum dot comprises IIB-VIA family, and can absorb
ultraviolet light and convert the
ultraviolet light into visible light; the second
quantum dot comprises IVA-VIA family and is used for absorbing
infrared light and converting the
infrared light into visible light. The design improves the
utilization rate of
ultraviolet and
infrared light, reduces the conversion of the ultraviolet and infrared light into
heat energy, reduces the
working temperature, improves the
photoelectric conversion efficiency and reliability, prolongs the service life, enables the
cell to efficiently operate in a wider spectral range, and remarkably improves the overall performance.