Multi-subcell compound photovoltaic cell
A technology of photovoltaic cells and compounds, applied in photovoltaic power generation, circuits, electrical components, etc., can solve problems such as insufficient absorption of natural sunlight spectrum
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[0014] The present invention will be further described below in conjunction with the best implementation mode, and the beneficial effects of the present invention will become clear in the detailed description.
[0015] see Figure 1-3 , figure 1 It is a schematic diagram of the structure of a three-subjunction photovoltaic cell, figure 2 for figure 1 Enlarged view of area A in Middle, which shows details of the photovoltaic cell of the present invention; for an aspect of the present invention, see figure 2 The compound photovoltaic cell of the present invention has a multi-junction InAlAsP / InGaAs / Ge structure, wherein the InAlAsP subcell (300) has a band gap of about 1.9 eV, the InGaAs sub cell (200) has a band gap of about 1.40 eV, and the Ge sub cell The bandgap of (100) is about 0.66ev. The optimized structure of the bandgap of the triple-junction photovoltaic cell of the present invention can match the wavelength structure of the natural solar spectrum, make full use ...
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