Organic solar cells (OPVs)

Double-doping of OLED materials could double the efficiency of polymer OLED displays

Researchers from Sweden's Chalmers University have developed a new "double doping" process that basically doubles the efficiency of Polymer OLED emitter materials.

The researchers explain that doping in organic semiconductors operates through what is known as a redox reaction, in which the dopant molecule receives an electron from the semiconductor which increases the electrical conductivity of the semiconductor. The efficiency limit of current doped organic semiconductors has been limited by the fact that each dopant molecule was able to to exchange one electron only. In the new research it was shown how it is possible to move two electrons for every dopant molecule which increases the conductivity of the organic material.

A new guide to promising perovskite materials: The Perovskite Handbook

The OLED-Info team takes pleasure in recommending our new book - The Perovskite Handbook, which gives a comprehensive introduction to perovskite materials, applications and industry. We believe that any display professional would find that perovskite materials are an area of focus that should not be ignored.

The Perovskite Handbook

Perovskites offer a myriad of exciting properties and has great potential for the display industry. The promising perovskite industry is currently at a tipping point and on the verge of mass adoption and commercialization and the first display-related perovskites are already reaching the market.

Kyushu University researchers use singlet fission to achieve near-infrared OLED emitters with >100% IQE

Researchers from Japan's Kyushu University developed a new technology called singlet fission that enables near-infrared OLED materials to surpass the 100% limit for exciton production - or achieve an internal quantum efficiency (IQE) of over 100%. Singlet fission was already used in OPVs, but this is the first time that it was demonstrated with OLEDs.

SInglet fission OLED process, Kyushu University

Achieving over 100% is possible because at 100% IQE all charges form excitons that emit light. The new technique splits the energy from a high-energy excitons into two low level ones. The new OLED emitter materials use molecules in which singlets can transfer half of their energy to neighboring molecules while keeping half of the energy for themselves - each singlet creates two triplets. The emitters emit near-infrared light.

Merck and OLEDWorks bring their textile-based OLED+OPV installation to Frankfurt

In September 2017, Merck, OLEDWorks, OPVIUS and Kolon launched a new textile-based OLED lighting and OPV installation (called "Do we dream under the same sky") at the first Seoul Biennale of Architecture and Urbanism.

Do we dream under the same sky (Frankfurt 2018)

Merck now brought the same installation to Frankfurt during the Light + Building 2018, and the company also gave us more details about this interesting installation.

Merck and OLEDWorks demonstrate a new OLED/OPV installation concept

Merck, OLEDWorks, OPVIUS and Kolon launched a new textile-based "façade" concept that combines OLED lighting panels and OPV (organic PV panels). The new structure was launched as part of the first Seoul Biennale of Architecture and Urbanism.

Merck & OLEDWorks OLED/OPV Facade (Seoul, Sep-17)

The façade, in which the structure is made from Bamboo, was designed by architects Nikolaus Hirsch, Michel Müller and artist Rirkrit Tiravanija. The same installation will also be delivered to more exhibitions in Germany and Thailand during 2018.

Fluxim releases a new version of its large-area OLED simulation software, OLED-Info readers get a 20% discount

Leading simulation and measurement tool provider Fluxim recently released a new version of its large-area OLED simulation software LAOSS. The new version adds a simulation capability for temperature estimation and cross-coupling the temperature generated by the device operation itself (in the organic stack and the electrodes) and the changes in device operation due to this increased temperature (leading again to different heat generation and so on).

Fluxim Laoss 2.0 slide

LAOSS is a software tool that simulates large area semiconductor devices (OLED and PV), taking into account the voltage drop in the electrodes due to important resistive effects when the size of the device increases. LAOSS facilitates electrode layout optimization and material choice, which can save substantial time and resources. Both OLED lighting panel design and study of AMOLED pixel cross-talk is just a click away.

OLED-Info readers get a 20% discount on Fluxim's large-area OLED simulation software

Leading simulation and measurement tool provider Fluxim and OLED-Info have teamed up to offer a 20% discount on Fluxim's large-area OLED simulation software LAOSS.

Fluxim Laoss software for AMOLED displays and OLED lighting image

LAOSS is a software tool that simulates large area semiconductor devices (OLED and PV), taking into account the voltage drop in the electrodes due to important resistive effects when the size of the device increases. LAOSS facilitates electrode layout optimization and material choice, which can save substantial time and resources. Both OLED lighting panel design and study of AMOLED pixel cross-talk is just a click away.

PCAS to invest $4 million to significantly increase its organic electronics material production capacity

France-based specialty chemicals producer PCAS announced that it plans to invest $8 million in the next few years to significantly increase its production capacity of electronic materials. Half of that investment is dedicated to the organic electronics field.

PCAS production plant photo

PCAS is targeting the OLED, OPV, O-FET and sensor markets. The added capacity will mostly be installed at the company's Canadian plant (located in Saint-Jean, Quebec). PCAS offers evaporable small molecule, transparent electrode materials, conductive polymers and smart luminescent polymers.

Novaled breaks ground on a new €20 million facility

Novaled has started constructing its new €20 million fab and office buildings. The new facility will be located in the north of Dresden, and will comprise of a renovated old mill that will be turned into a prestigious office building and a new 110-meter long R&D plant with state-of-the-art research areas, laboratories and clean rooms.

Novaled's future Dresden HQ (render, 2017)

Novaled says it is the world's only supplier of organic dopants for mass produced OLED displays - and also in OLED lighting panels. Novaled's materials are also used in OPV devices.

Researchers develop a method to change the color and fluorescence of compounds using gases

Researchers from Japan developed a new method that can be used to change the color and fluorescence of compounds using oxygen and hydrogen gases. This is a reversible method that is environmentally friendly. The technique can find applications in sensors and control of organic semiconductors and OLED devices.

The researchers explain that they were able to perform a molecular switch in aromatic compounds that are commonly used in OLEDs, OPVs and other applications. The switch was performed using an orthoquinone moiety.

Cambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDsCambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDs