A perovskite solar cell with a sulfurized composite electron transport layer structure
An electron transport layer, solar cell technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of restricting the long-term development of perovskite solar cells, destroying the perovskite layer, and low electron mobility, and achieving a simple preparation method. The effect of fast, inhibiting interface charge recombination, and accelerating the transmission of electrons
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Embodiment 1
[0027] The perovskite solar cell of the invention comprises a transparent conductive substrate, a sulfide composite electron transport layer, a perovskite light absorption layer, a hole transport layer and a back electrode that are stacked in sequence. The perovskite solar cells with this structure can form a reasonable energy level matching and can effectively conduct charges.
[0028] Preferably, the perovskite light-absorbing layer is a perovskite polycrystalline film. The perovskite polycrystalline film has high quality, good energy level matching and low cost.
[0029] Preferably, the hole transport layer material is spiro-OMeTAD. The energy level matching of spiro-OMeTAD and the perovskite light-absorbing layer is better, and at the same time, it can effectively transport holes to the back electrode layer, thereby ensuring high photoelectric conversion efficiency.
[0030] The preparation method of the present embodiment is:
[0031] First, a dense layer of ZnO is pre...
Embodiment 2
[0037] The perovskite solar cell of the invention comprises a transparent conductive substrate, a sulfide composite electron transport layer, a perovskite light absorption layer, a hole transport layer and a back electrode that are stacked in sequence. The perovskite solar cells with this structure can form a reasonable energy level matching and can effectively conduct charges.
[0038] Preferably, the perovskite light-absorbing layer is a perovskite polycrystalline film. The perovskite polycrystalline film has high quality, good energy level matching and low cost.
[0039] Preferably, the hole transport layer material is spiro-OMeTAD. The energy level matching of spiro-OMeTAD and the perovskite light-absorbing layer is better, and at the same time, it can effectively transport holes to the back electrode layer, thereby ensuring high photoelectric conversion efficiency.
[0040] The preparation method of the present embodiment is:
[0041] First, a dense layer of ZnO is pre...
Embodiment 3
[0046] The perovskite solar cell of the invention comprises a transparent conductive substrate, a sulfide composite electron transport layer, a perovskite light absorption layer, a hole transport layer and a back electrode that are stacked in sequence. The perovskite solar cells with this structure can form a reasonable energy level matching and can effectively conduct charges.
[0047] Preferably, the perovskite light-absorbing layer is a perovskite polycrystalline film. The perovskite polycrystalline film has high quality, good energy level matching and low cost.
[0048] Preferably, the hole transport layer material is spiro-OMeTAD. The energy level matching of spiro-OMeTAD and the perovskite light-absorbing layer is better, and at the same time, it can effectively transport holes to the back electrode layer, thereby ensuring high photoelectric conversion efficiency.
[0049] The preparation method of the present embodiment is:
[0050] First, a dense layer of ZnO is pre...
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