A kind of perovskite quantum dot solar cell and preparation method thereof
A technology of solar cells and quantum dots, applied in the field of solar cells, can solve the problems of inability to completely remove long-chain insulating ligands, inability to completely remove long-chain ligands, humidity and temperature sensitivity, etc., so as to improve photoelectric conversion efficiency and promote electric charge. The effect of transmitting and maintaining stability
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Embodiment 1
[0031] This embodiment provides a kind of perovskite quantum dot solar cell, the structure is as follows figure 1 As shown, an electron transport layer 2, a perovskite quantum dot light-absorbing layer 3, a hole transport layer 4 and a metal electrode 5 are sequentially prepared on a conductive glass substrate 1; the specific steps of preparation are as follows:
[0032] Step 1: Use detergent, deionized water, acetone and isopropanol to ultrasonically wash the FTO conductive substrate 1 in sequence; prepare a titanium oxide film with a thickness of 40 nm on the cleaned FTO by chemical bath deposition, and obtain Electron transport layer 2, and annealed at 200°C for 30 minutes;
[0033] Step 2: FTO / TiO 2 Substrate is transferred in the glove box, and the atmosphere of glove box is dry air; The CsPbI of 70mg / mL 3 Quantum dots spin-coated in n-octane solution on FTO / TiO 2 On the substrate, the spin-coating speed is 2000rpm, and then the prepared CsPbI 3 The quantum dot film i...
Embodiment 2
[0038] This embodiment provides a kind of perovskite quantum dot solar cell, the structure is as follows figure 1 As shown, the preparation of the battery includes the following steps: sequentially preparing an electron transport layer 2 , a perovskite quantum dot light-absorbing layer 3 , a hole transport layer 4 and a metal electrode 5 on a conductive glass substrate 1 . Its preparation method and concrete steps are as follows:
[0039] Step 1: Use detergent, deionized water, acetone and isopropanol to ultrasonically wash the FTO conductive substrate 1 in sequence; prepare a titanium oxide film with a thickness of 40 nm on the cleaned FTO by chemical bath deposition, and obtain Electron transport layer 2, and annealed at 200°C for 30 minutes;
[0040] Step 2: FTO / TiO 2 Substrate is transferred in the glove box, and the atmosphere of glove box is dry air; The CsPbI of 70mg / mL 3 Quantum dots spin-coated in n-octane solution on FTO / TiO 2 On the substrate, the spin-coating s...
Embodiment 3
[0045] This embodiment provides a kind of perovskite quantum dot solar cell, the structure is as follows figure 1 As shown, the preparation of the battery includes the following steps: sequentially preparing an electron transport layer 2 , a perovskite quantum dot light-absorbing layer 3 , a hole transport layer 4 and a metal electrode 5 on a conductive glass substrate 1 . Its preparation method and concrete steps are as follows:
[0046] Step 1: Use detergent, deionized water, acetone and isopropanol to ultrasonically wash the FTO conductive substrate 1 in sequence; prepare a titanium oxide film with a thickness of 40 nm on the cleaned FTO by chemical bath deposition, and obtain Electron transport layer 2, and annealed at 200°C for 30 minutes;
[0047] Step 2: FTO / TiO 2 Substrate is transferred in the glove box, and the atmosphere of glove box is dry air; The CsPbI of 70mg / mL 3 Quantum dots spin-coated in n-octane solution on FTO / TiO 2 On the substrate, the spin-coating s...
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