Pseudohalogen induction-based two-dimensional perovskite electric storage device and preparation method therefor
A pseudo-halogen and electric storage technology, which is applied in the field of two-dimensional perovskite 2PbI22 electric storage devices and its preparation, can solve the problems of complex preparation process and low ternary yield, and achieve simple preparation process and high ternary yield. Efficient, easy-to-operate effects
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Embodiment 1
[0042] Under nitrogen protection, methyl ammonium iodide (635.8 mg, 4 mmol) was dissolved in DMF (2 mL), then lead thiocyanate (647.9 mg, 2 mmol) was added to the methyl ammonium iodide solution, shaken Obtain the yellow (CH 3NH 3 ) 2 PB 2 (SCN) 2 solution.
[0043] Pseudohalogen-induced two-dimensional perovskite electrical storage device structure such as figure 1 As shown, the device is basically divided into three layers, which are the ITO glass substrate layer, the active layer and the aluminum electrode layer from bottom to top. The preparation method, the specific steps are as follows:
[0044] 1. In an ultrasonic cleaner, clean the ITO glass substrate with deionized water, acetone, and absolute ethanol in sequence;
[0045] 2. The (CH 3 NH 3 ) 2 PB 2 (SCN) 2 The solution was spin-coated on an ITO glass substrate to form an active layer with a thickness of 250 nm, and then placed in a nitrogen-protected glove box to dry naturally to obtain a storage component...
Embodiment 2
[0050] Under nitrogen protection, methyl ammonium iodide (635.8 mg, 4 mmol) was dissolved in DMF (2 mL), then lead thiocyanate (647.9 mg, 2 mmol) was added to the methyl ammonium iodide solution, shaken Obtain the yellow (CH 3 NH 3 ) 2 PB 2 (SCN) 2 solution.
[0051] A method for preparing a pseudohalogen-induced two-dimensional perovskite electric storage device, the specific steps are as follows:
[0052] 1. In an ultrasonic cleaner, clean the ITO glass substrate with deionized water, acetone, and absolute ethanol in sequence;
[0053] 2. The (CH 3 NH 3 ) 2 PB 2 (SCN) 2 The solution was spin-coated on an ITO glass substrate to form an active layer with a thickness of 200 nm, and then placed in a nitrogen-protected glove box to dry naturally to obtain a storage component for a ternary electrical storage device; the spin-coating conditions were as follows: the solution was added dropwise to Immersion on the substrate for 60 s, the two speeds are: 1000 r / min for 25 s...
Embodiment 3
[0057] Under nitrogen protection, methyl ammonium iodide (635.8 mg, 4 mmol) was dissolved in DMF (2 mL), then lead thiocyanate (647.9 mg, 2 mmol) was added to the methyl ammonium iodide solution, shaken Obtain the yellow (CH 3 NH 3 ) 2 PB 2 (SCN) 2 solution.
[0058] A method for preparing a pseudohalogen-induced two-dimensional perovskite electric storage device, the specific steps are as follows:
[0059] 1. In an ultrasonic cleaner, clean the ITO glass substrate with deionized water, acetone, and absolute ethanol in sequence;
[0060] 2. The (CH 3 NH 3 ) 2 PB 2 (SCN) 2 The solution was spin-coated on an ITO glass substrate to form an active layer with a thickness of 300 nm, and then placed in a nitrogen-protected glove box to dry naturally to obtain a storage component for a ternary electrical storage device; the spin-coating conditions were as follows: the solution was added dropwise to Immersion on the substrate for 60 s, the two speeds are: 1000 r / min for 20 s...
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