Bringing more efficient and cheaper solar energy utilization technology.
Researchers at the Australian National University who participated in the study said that the current solar cell market is dominated by silicon solar technology. Although the price of silicon solar cells has dropped significantly, it still needs to be further reduced to compete with traditional energy methods.
The researcher's approach is to superimpose a perovskite solar cell on a silicon cell and connect the two cells with different spectral absorption properties in series to form a stacked solar cell structure.
The researchers say that, in general, to make two cells in a laminated battery work together, they must be connected using an intermediate layer of material, but they completely dispense with this layer of material and build an unconventional stack. Layer solar cell structure, its advantages include minimizing energy waste, simple structure, and expected to reduce production costs.
The researchers said that in the relevant tests, the photoelectric conversion efficiency of the new structure battery has reached 24%, but the room for improvement is still very large, and it is expected to increase to more than 30% in a short period of time. The theoretical maximum efficiency is over 40%, far exceeding ordinary solar energy. battery.
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