Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 prone to film defects, which in turn lead to a decrease in the resistance at the defect and a large leakage current. Short-circuit leakage, which greatly damages the battery performance and reduces the technical problem of battery yield

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
Effect test

preparation example Construction

[0031] Such as figure 1 Shown, a kind of preparation method of high-yield organic solar cell comprises:

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

[0033] (2) Dip the insulating layer solution with a brush, apply the insulating layer solution on the surface of the defect of the photoactive layer, and obtain an 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,...

Embodiment 1

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

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

[0048] S2. Using P3HT as the active layer donor material and ICBA as the active layer acceptor material, the two were dissolved in chlorobenzene solution at a mass ratio of 1:1 to prepare a 40 mg / ml photoactive layer solution. Spin-coat the prepared P3HT / ICBA chlorobenzene solution on the hole blocking layer in step S1 at a spe...

Embodiment 2

[0053] The solar cell of embodiment 2 includes 2mm thick glass successively from the bottom surface to the top surface 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 PBDB-T and ITIC), and 10nm molybdenum oxide as electron blocking layer, 80nm silver as anode. The area of ​​the solar cell is about 100mm 2 . Its preparation method specifically comprises the following steps:

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

[0055] S2. take PBDB-T as the active layer donor material, and ITIC is the active layer acceptor material, the two are dissolved in chlorobenzene solution with a mass ratio of 1: 1, and are prepared as a photoactive layer solution of 20mg / ml, and Diiodooctane with a mass fraction of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com