Are you looking for a stable Oled material supplier to purchase Oled organic materials? Or do you want to know more about Oled organic materials? This article will take you through what you need to know about Oled organic materials.
Table of contents
What Materials Are Oled Made Of?
The structure of an OLED consists of different layers. Light starts to be generated due to the electric current in the organic compound thin film. Also, you don't need any backlight for the display. In an OLED, there are seven layers.
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cathode
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electron transport layer
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emission layer
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hole transport layer
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hole injection layer
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anode
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matrix
In the above layers, OLED chemicals are used for the light emitting layer. Organometallic chelates such as Alq3, fluorescent, phosphorescent dyes, and conjugated dendrimers are commonly used molecules in OLEDs.
The core organic materials of OLED are HIL, HTL, EML, and their main functions are as follows:
HIL : Smoothly transport holes from the negative electrode to the organic layer
HTL : The point in the transport layer is the layer that allows electrons to be smoothly transported to the positive electrode
ETL : Facilitates the injection and transfer of electrons from the cathode
EML : Light-emitting layer that combines holes and electrons
All of the above materials are key to improving people's viewing experience for the manufacture of OLED displays. In addition to this, the color scheme and brightness have also gotten better. So, if you want to easily get the best screen view at home, you should choose an OLED display for that.
How Oled Organic Materials Affect Display Quality
The key to OLED technology's excellent display effect lies in the organic materials it uses. These materials determine the core parameters of the display, such as color performance, brightness, and contrast. The organic molecules used in OLED will emit light when powered on, and these organic molecules can be precisely adjusted to emit different colors of light, which directly affects the color accuracy and vividness of the display.
For example, the type of material in the light-emitting layer in OLED determines the color range and brightness performance of the display. To improve efficiency, manufacturers usually use phosphorescent materials, which can not only increase display brightness but also reduce power consumption. At the same time, although fluorescent materials are lower in cost, they are less efficient and more prone to material aging problems.
Different manufacturers continue to experiment with new material combinations to achieve deeper blacks, higher contrast, and better color uniformity. This material innovation allows OLED to almost completely surpass traditional LCDs in display parameters such as response time and viewing angle. In addition, OLED pixels can be turned off independently to achieve true black, which is also an important contribution of organic materials in energy saving.
Sustainability of Oled Organic Materials
Under the wave of sustainable development, the environmental protection characteristics of OLED have attracted more and more attention. Although OLEDs are more energy-efficient than LCDs, whether the organic materials they use are environmentally friendly remains an important issue. Currently, small molecule organic materials are commonly used in OLED displays, but most of these materials are derived from non-renewable petroleum resources, which has raised concerns about their long-term sustainability.
Therefore, researchers and manufacturers are actively exploring bio-based organic materials that can be extracted from renewable resources such as plants to reduce environmental impact. In addition, the recyclability of OLED products is also a pressing issue. Compared with traditional electronic devices, the organic materials in OLEDs are difficult to recycle after aging, resulting in a complicated recycling process. Currently, some manufacturers are working on developing OLED designs that are easier to disassemble and recycle to meet this challenge.
The Future of OLED Organic Materials: Innovation and Trends
The continuous advancement of OLED technology is also reflected in the innovation of organic materials. Among them, thermally activated delayed fluorescence (TADF) materials are one of the breakthroughs that have attracted much attention in recent years. This material can make the efficiency of fluorescent organic materials close to that of phosphorescent materials, while greatly reducing production costs because they do not need to rely on rare or expensive materials.
Quantum dot OLED (QD-OLED) is also another major trend. By incorporating quantum dots, nanoscale semiconductor particles, into OLED displays, manufacturers can achieve more precise color control and higher brightness without additional energy consumption. The application of quantum dots further improves the efficiency of light utilization, resulting in richer color performance and better brightness.
In addition, the development of blue phosphorescent materials is also a hot direction. Compared with red and green, blue materials have a shorter lifespan. If the lifespan of blue materials can be extended, it will greatly improve the application performance of OLED on large-size displays such as TVs.
Challenges in the Manufacture of Oled Organic Materials
Although OLED display technology has many advantages, it still faces many challenges in the manufacture of organic materials. The first is the difficulty of large-scale production. The manufacturing process of OLED is more complicated than that of traditional displays, and the organic layer needs to be uniformly deposited in a highly controlled environment, which makes the production cost higher and the yield rate difficult to improve.
Secondly, material aging is a major problem facing OLED. Compared with inorganic materials, organic materials are more prone to aging, resulting in a shorter display life, especially the aging rate of blue materials is significantly faster than red and green. Solving this problem is crucial to improving the durability of OLED.
In addition, the phosphorescent materials commonly used in OLEDs, such as rare elements such as iridium, are expensive, which also increases the production cost of OLEDs. Therefore, finding alternative materials with lower costs and comparable performance has become the research focus of major manufacturers.
We Supply High Purity Oled Intermediates for Oled Displays
Oled intermediates play a very important role in the manufacture of Oled organic materials and the treatment of display devices. They affect the fundamental and core characteristics of Oled displays.
We supply high-purity Oled organic materials such as:
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CAS 2052-07-5
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CAS 92-66-0
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CAS 105946-82-5
You can check our product list for more Oled intermediates.
About Oled Organic Material Manufacturer
Zhejiang Violet is mainly engaged in the design, synthesis, production and trade of high-end gram to kilogram R&D chemicals, and is committed to the production of high-purity OLED intermediates, pharmaceuticals, and dye raw materials; the main products are biphenyls, carbazoles, quinoline and other heterocyclic compounds. At present, our company is committed to the production and development of more than 50,000 gram-level high-end chemical reagents and compound products. Contact us for more information.