Method for preparing perovskite solar cell with dual-electron transfer layer
A dual-electron transmission and solar cell technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve problems such as period damage and solar cell efficiency decline, and achieve low positive and negative voltage scanning direction hysteresis and high energy conversion efficiency. Effect
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[0042] like figure 1Shown, a kind of preparation method of the solar cell with double electron transport layer structure, described method comprises:
[0043] Step 1. Prepare a double electron transport layer on the FTO (tin dioxide conductive glass) conductive glass doped with fluorine; the double electron transport layer is an IGZO (indium gallium zinc oxide) film and SnO 2 (tin dioxide) thin film, the preparation method of described IGZO thin film can select magnetron sputtering or solution spin coating, layer thickness 10-45nm; Described SnO 2 The thin film is prepared by solution spin coating; Step 2. Prepare a layer of FA with an organic-inorganic hybrid perovskite structure by solution spin coating on the double electron transport layer 0.7 MA 0.2 Cs 0.1 Pb(Br 0.05 I 0.95 ) 3 as a light absorbing layer;
[0044] Step 3. adopt solution spin-coating method to prepare one deck Spiro-OMeTAD on described light-absorbing layer as hole-transporting layer;
[0045] Step...
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