High yield organic solar cell and preparation method thereof

A solar cell and high-yield technology, which is applied in the manufacture/processing of organic semiconductor devices, circuits, photovoltaic power generation, etc., can solve the problems of reducing battery yield, damaging battery performance, and reducing resistance, and meets the requirements of reducing flatness. The effect of lowering the threshold and improving the yield rate

Active Publication Date: 2018-05-18
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a high-yield organic solar cell and its preparation method, thereby solving the existing problems in the prior art that are pron

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  • High yield organic solar cell and preparation method thereof
  • High yield organic solar cell and preparation method thereof
  • High yield organic solar cell and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0031] Such as figure 1 As shown, a method for preparing a high-yield organic solar cell includes:

[0032] (1) Prepare a bottom electrode on a substrate, and prepare a photoactive layer on the bottom electrode; the thickness of the substrate is 100 μm to 1 mm, and the substrate is glass, stainless steel, polymethyl methacrylate, polyethylene terephthalate One or more of ester, polyethylene naphthalate, polyethersulfone, and polyimide.

[0033] (2) Dip the insulating layer solution with a brush, coat the insulating layer solution on the surface of the defect of the photoactive layer, and obtain the insulating layer after drying; the thickness of the photoactive layer is 50nm-500nm. The thickness of the insulating layer is 100nm-100μm, and the solute of the insulating layer solution is polyetherimide, polyethoxyethyleneimine, 9,9-dioctylfluorene-9,9-bis(N,N- Dimethylaminopropyl) fluorene, polyvinyl alcohol, polyethylene oxide, polydimethylsiloxane or polymethyl methacrylate, the so...

Example Embodiment

[0045] Example 1

[0046] The solar cell of Example 1 includes 2mm glass as a hard substrate, 300nm ITO as a cathode, 5nm PEI as a hole blocking layer, and a 180nm photoactive layer (including a mass ratio of 1:1) from the bottom surface to the top surface. P3HT and ICBA), and 120nm transparent anode, the area of ​​the solar cell is about 1cm 2 . The preparation method specifically includes the following steps:

[0047] S1. Using glass / ITO with a thickness of 2mm as the substrate / cathode, spin-coating a layer of PEI / isopropanol solution with a mass fraction of 0.1% on the ITO, heating at 80°C for 2min to obtain a hole blocking layer with a thickness of 5nm.

[0048] S2. Using P3HT as the active layer donor material and ICBA as the active layer acceptor material, the two were dissolved in a chlorobenzene solution at a mass ratio of 1:1 to prepare a 40 mg / ml photoactive layer solution. Then, the prepared P3HT / ICBA chlorobenzene solution was spin-coated on the hole blocking layer in s...

Example Embodiment

[0052] Example 2

[0053] The solar cell of Example 2 includes 2mm thick glass as a hard substrate, 300nm ITO as a cathode, 5nm PEI as a hole blocking layer, and a 180nm photoactive layer (including a mass ratio of 1:1) from the bottom surface to the top surface. PBDB-T and ITIC), and 10nm molybdenum oxide as the electron blocking layer, 80nm silver as the anode. The area of ​​the solar cell is about 100mm 2 . The preparation method specifically includes the following steps:

[0054] S1. Using glass / ITO with a thickness of 2mm as the substrate / cathode, spin-coating a layer of zinc acetate / ethanolamine / dimethoxyethanol solution on the ITO, heating at 200°C for 20 minutes to obtain a 20nm thick hole blocking layer.

[0055] S2. Use PBDB-T as the active layer donor material and ITIC as the active layer acceptor material. The two are dissolved in a chlorobenzene solution at a mass ratio of 1:1 to prepare a 20mg / ml photoactive layer solution, and Add 0.5% diiodooctane as an additive. ...

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Abstract

The invention discloses a high yield organic solar cell and a preparation method thereof, and belongs to the field of photovoltaic device production. The high yield means that at least 95% of prepareddevices can reach the standard efficiency. A bottom electrode is prepared on a substrate, then an optically active layer is prepared on the bottom electrode, an insulation layer solution is painted on the defects on the surface of the optically active layer to obtain an insulation layer; and finally a top electrode is prepared on the insulation layer and the optically active layer to obtain the organic solar cell. Before preparing the top electrode of the film solar cell, the insulation layer solution is painted on the defects of the optically active layer to obtain the insulation layer, because the insulation layer is insulated, short circuit of the defects is prevented. The preparation method is simple and effective, the yield of the organic solar cell is greatly increased, and the preparation method has an important meaning for the industrial production of film solar cells.

Description

technical field [0001] The invention belongs to the field of photovoltaic device preparation, and more specifically relates to a high-yield organic solar cell and a preparation method thereof. Background technique [0002] Solar energy is not only clean and environmentally friendly, but also inexhaustible. Under the background of energy crisis, it is expected to become the best choice to replace fossil energy. Organic solar cells are a new type of batteries. Through nearly two decades of research on material synthesis and device physics, the photoelectric conversion efficiency of organic solar cells prepared in the laboratory has exceeded 13%. Organic solar cells have the advantages of solution preparation, flexibility, light weight, low cost, colorful and beautiful, and have attracted extensive attention from academia and industry. [0003] The biggest advantage of organic solar cells is that they can be produced by a mild and low-energy liquid phase method, using spin coa...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/48
CPCH10K30/00H10K71/00Y02E10/549Y02P70/50
Inventor 周印华毛霖孙露露罗邦武熊思醒蒋友宇蒋方圆
Owner HUAZHONG UNIV OF SCI & TECH
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