Materials for advanced display technology
Our offerings support printable manufacturing technologies and eco-friendly solutions, enhancing efficiency and scalability in display production. With a well-established logistics network, ensuring reliable and timely delivery of high-quality products, minimizing disruptions in your production process.
We provide a diverse range of materials, including prefabricated devices (like organic field-effect transistors, OFETs) tailored to meet various display needs. Our customized solutions are designed to enhance performance and drive innovation in your research and applications.
Products
Emissive layer: Function and composition
The emissive layer is vital for light production, situated between the hole and electron transport layers. It consists of host materials and dopants that improve light emission efficiency and stability.
OLED host materials
Host materials enhance the performance of emissive materials by facilitating charge transport. The types include:
Thermally Activated Delayed Fluorescence (TADF) host materials
These serve as alternatives to traditional emitters, maximizing internal quantum efficiency. An example is 4,4′-Bis(N-carbazolyl)-1,1′-biphenyl, known for its excellent performance in OLED applications.Fluorescent host materials
These materials transfer energy to dopants, stabilizing charge carriers. An example is 4,4′,4′′-tris(carbazol-9-yl)-triphenylamine, which is used as a nucleation reagent to enhance the quality of perovskite films by eliminating pinholes in the film.Phosphorescent host materials
These provide high efficiency and vibrant colors. An example is TSPO1, employed in the OLED blocking layer to improve device performance.
OLED dopants and emitters
Dopants modify the properties of materials to enhance device performance. A notable example is Tris-(8-hydroxyquinoline)aluminum (Alq3), which is used in phosphorescent OLEDs and chemical sensors.
Light-emitting polymers for display technology
Light-emitting polymers, such as poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(2,5-p-xylene)], are essential for creating color filters that improve display performance.
Liquid Crystalline Compounds in OLED and LCD displays
Liquid crystalline materials, including fluorescent photo-conducting liquid crystalline compounds like TpOx-Ph-o-Cl, enhance alignment and response times in OLEDs and LCDs, contributing to improved display performance.
Quantum dots for display applications
Quantum dots emit specific colors based on size, enhancing color quality in displays. Examples include CdSe/ZnS, graphene quantum dots, and InP/ZnS quantum dots, which are utilized in various applications, from alternating current-quantum dot light-emitting diode (AC-QLED) devices to perovskite quantum dot solar cells.
Hole Transport Layer (HTL) materials in OLEDs
The hole transport layer is crucial for moving holes to the emissive layer. N,N′-Bis(3-methylphenyl)-N,N′-diphenylbenzidine (TPBi) is a widely used HTL, known for its excellent charge transport properties.
Electron Transport Layer (ETL) in OLED technology
The electron transport layer ensures efficient electron movement to the emissive layer. 4,7-Diphenyl-1,10-phenanthroline (BPhen) is a preferred choice for an ETL due to its high electron mobility.
Insulation and encapsulation materials
Insulation and encapsulation materials, including dielectric polymers and perovskite materials, enhance light extraction efficiency and protect display components from environmental factors. Poly(4-vinylphenol) (PVP) is an example of a dielectric polymer that forms a low-cost, non-toxic film to enhance adhesion and insulating layer. Polyimides are also used to encapsulate delicate electronic components due to their excellent thermal and chemical resistance.
Flexible electrodes
Metal-based conductive inks and carbon nanomaterials enable the fabrication of flexible, lightweight circuits for next-generation displays. In this context, nanomaterials and conductive polymers have been at the forefront of wearable, flexible, lightweight devices. Examples within our products are silver-based nanoparticle inks, graphene dispersions, and conductive polymers such as polypyrrole.
Electronic-grade solvents
Electronic-grade solvents are essential for semiconductor and display fabrication. We also offer sustainable green solvents to promote eco-friendly research practices.
Substrates for OLED, LCD, and photovoltaic applications
FTO-coated substrates
Ready-to-use fluorine-doped tin oxide (FTO)-coated glass slides, providing transparent conductivity and streamlining your research in solar cells, LCDs, and OLEDs to focus on what matters. Merck is at the forefront of display technology research, offering an extensive range of OLED materials that can enhance your projects.
Related resources
- Article: Light-emitting polymers
LEPs enable a wide range of important applications including sensors, flexible LED displays and lighting devices, optical pump lasers, and potentially polymer diode lasers.
- Article: The application of quantum dots in display technology
Quantum Dots (QDs), a nanoscale material with unique optical properties governed by quantum mechanics, have been incorporated into a new display technology under development at QD Vision, Inc.
- Article: Achieving high efficiency in organic light-emitting devices
Electroluminescence of organic molecules has been a wellknown phenomenon for more than 50 years.
- Material Matters 7.1: Innovative materials for high performance optoelectronic devices OPVs, OFETs, and OLEDs
Welcome to the first issue of Material Matters™ for 2012, focused on high-performance organic optoelectronic devices. Since their discovery, devices such as organic light-emitting diodes (OLEDs), organic photovoltaic solar cells (OPVs), and organic field effect transistors (OFETs) have triggered enormous scientific interest, as well as skepticism regarding their potential for commercial application.
- Plexcore® OC Hole Injection Inks
Plexcore® organic conductive inks are electronic grade inks formulated for use in the hole injection layers of OLEDs.
- Inorganic Interface Layer Inks for Organic Electronic Applications
Find advantages of inorganic interface layer inks for organic electronic & other applications.
- Materials Design Concepts for Efficient Blue OLEDs: A Joint Theoretical and Experimental Study
Since their discovery, organic light emitting devices (OLEDs) have evolved from a scientific curiosity into a technology with applications in flat panel displays and the potential to revolutionize the lighting market. During their relatively short history, the technology has rapidly advanced, and device efficiencies have increased more than 20-fold, approaching the theoretical limit for internal quantum efficiencies.
- Conducting Polymer Materials for Flexible OPV Applications: Orgacon™ PEDOT : PSS
A detailed article on conducting polymer materials for flexible organic photovoltaics (OPVs) applications.
- New Conducting and Semiconducting Polymers for Plastic Electronics
In the field of organic printable electronics, such as OLEDs and organic photovoltaics (OPVs), improved organic conducting and semiconducting materials are needed. The progress in two fields is reviewed in this article.