Polymer acceptor material
A technology of acceptor materials and polymers, which is applied in the manufacture of electrical solid-state devices, semiconductor devices, semiconductor/solid-state devices, etc., can solve the problems of low device efficiency, achieve strong absorption, improve light-harvesting ability, and broaden the absorption spectrum.
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[0029] Example 1: The synthetic route of representative polymer acceptor materials is shown below:
[0030]
[0031] (1) The monomers NDI1 and NDI2 were synthesized according to the method disclosed in the literature (J. Mater. Chem. A, 2017, 5, 5449).
[0032] (2) The monomer PDI1 was synthesized according to the method disclosed in the literature (Macromolecules, 2017, 50, 7559).
[0033] (3) Synthesis of polymer P1:
[0034] Weigh compound NDI1 (197.0 mg, 0.2 mmol) and compound TN1 (124.8 mg, 0.2 mmol) into the reaction tube, add chlorobenzene (3 mL), and ventilate with argon for 20 minutes. Then quickly add catalyst and ligand, Pd 2 (dba) 3 (3mg), P(o-tol) 3 (6mg), the reaction tube was filled with argon by argon gas, the lid was closed, the polymerization reaction was carried out, and the reaction was carried out at 140°C for 48 hours. At the end of the reaction, the reaction solution was dropped into methanol to precipitate the polymer, and then the polymer was washed with acet...
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[0043] Example 2: Characterization of organic photovoltaic devices
[0044] The representative polymer materials P1 and P2 synthesized in Example 1 are used as electron acceptor materials and applied to organic photovoltaic devices. The device structure is as figure 1 Shown.
[0045] The ITO substrate was washed in acetone, 1% to 3% alkaline cleaning solution, and isopropanol for 20 minutes ultrasonically, dried in an oven at about 80°C, and plasma treated under low vacuum. Then, a layer of interface layer material is spin-coated on the ITO substrate, and then a layer of active layer material is spin-coated. Then a layer of interface layer material is spin-coated on the active layer, and finally the substrate loaded with the active layer is placed in a vacuum thermal evaporation chamber, at a high vacuum degree (~2×10 -6 mbar), the metal electrode is vapor-deposited on the active layer. Organic solar cell devices usually have an energy density of 1000W / m 2 The AM 1.5G is tested an...
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