Avantama Coating Formulations: Properties and Applications
There are numerous established methods of printing electronics and formulating thin film nanomolecular structures for cutting-edge electrical components. Typical methods use high-purity coating formulations to disperse solutions of organometallic-solvent compounds onto substrate materials through lithographic printing methodologies. Established techniques have been used to integrate complex semiconducting nanocrystals into high-performance displays and photovoltaic cells.
At a molecular level, the architecture of a display screen or a solar cell is comprised of layered materials capable of transporting electrons or transporting holes. These host materials emit electrofluorescent light, as a steady flow of electrons moves from the anode to the cathode. This capacity is routinely used to produce high-quality images in display matrices or to generate electrical energy from solar light.
This article will explore some of the coating formulations from Avantama in more detail:
N-20X Coating Formulation
This electron transportation material comprises a mixture of aluminum-doped zinc oxide particles (Al:ZnO) of just 12 nm dimensions dispersed in a 2.5 cp viscosity propanol solvent. It is ideal for printed electronics using most established printing methodologies, providing low thermodynamic requirements to encourage electron motion irrespective of its application superstructure. This coating formulation enables the low-cost fabrication of ultra-efficient organic light-emitting diodes (OLEDs) and organic photovoltaic cells (OPVs).
Alternative coating formulations under the N-20X product terminology include:
Each of these formulations is synthesized to distinct chemical and mechanical parameters to maximize their efficacy in their respective production environments.
N-21X Coating Formulation
The N-21X is a similar coating formulation to the N-20X series of dispersions, albeit with a lower work function. It is comprised of Al:ZnO nanoparticles in a solvent mixture of alcohols. It offers similar conductivity and independent electron performance levels, with a reduced work function of approximately 3.9 ev.
Our N-21X range also includes specialized coating formulations for distinct printing methodologies and applications, including: slot-die; jet printing; and screen coating.
P-21 Coating Formulation
P-21 is a hole transport medium for printed electronics comprised of nickel oxide (NiO) nanoparticles dispersed in a highly-concentrated ethanol solvent. It has been developed to perform hole injection and transport with excellent resistance to charge recombination at the anode/cathode in a thin film array.
P-10 Coating Formulation
Another hole transport material for direct application on to the active material in a thin film array, providing exceptional resistance to charge recombination and a compatibility with silver nanowires. This solution of 12 nm tungsten oxide (WO3) nanoparticles in a propanol solvent is suitable for all major thin film applications, with established functionalities in OLED, OPV, and quantum dot LED (QLED) technologies.
Coating Formulations from Avantama
Avantama is an expert in the synthesis and commercial-scale production of nanoparticle dispersions and coating formulations for every application. Our range includes a selection of electron transport and hole transport materials, which have been manufactured for specific printing methodologies or for improved flexibility.
We can provide coating formulations in bulk quantities of up to 100 kg, with options to develop unique nanoparticle solutions to your specific requirements.