Three-system organic photovoltaic device based on graphene quantum dots and preparation method of three-system organic photovoltaic device
A technology of graphene quantum dots and organic photovoltaic devices, which is applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., and can solve the difficulty of obtaining conversion efficiency, power conversion limited energy level structure and charge in binary systems Transport capacity and other issues to achieve the effect of improving energy conversion efficiency, reducing preparation costs, and easy production control
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Embodiment 1
[0030] According to the mass ratio of P3HT and PCBM 1:0.6~1:1, prepare a three-system mixed solution with a concentration of 16~24mg / ml, the mass ratio of P3HT and PCBM is 1:0.8, and the concentration of the prepared solution is 18mg / ml, that is, take 20mg P3HT and 16mg PCBM were dissolved in 2ml chlorobenzene containing graphene quantum dots at the same time, and magnetically stirred for 12 hours to form a ternary mixed solution.
[0031] The preparation steps of the three-system active layer organic photovoltaic device based on graphene quantum dots are as follows:
[0032] (1) In the atmospheric environment, the ITO transparent conductive glass is etched into strips with a width of 3mm, and then ultrasonically cleaned by acetone, alcohol, and deionized water for 20 minutes, and dried in a drying oven. The ITO transparent conductive glass is Formed by placing an anode on a glass substrate.
[0033] (2) Coat the etched and dried ITO sheet with PEDOT:PSS solution, the coating...
Embodiment 2
[0040] According to the mass ratio of P3HT and PCBM 1:0.6, it is configured into a three-system mixed solution with a concentration of 16mg / ml, that is, 20mg of P3HT and 12mg of PCBM are dissolved in 2ml of chlorobenzene containing graphene quantum dots at the same time, and magnetically stirred for 12 hours to form A ternary mixed solution with a solute concentration of 16 mg / ml. The device fabrication process was completed as described in Example 1.
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