FLUXIM AG – Simulation Software and Instruments for LED and Solar cell researchers

Hello and welcome today I'm presenting aquick overview of Fluxim's software and measurement instruments and how they areused by R&D scientists working on next-generation LEDs, displays, solarcells and lighting.

We are a Swiss company based in the city of Winterthurin the canton of Zurich.

Fluxim was founded as a spin-out from ZurichUniversity by Beat Ruhstaller who still leads the team today.

Over the last twodecades we have developed and built class-leading simulation software andhigh precision instruments for PV and LED researchers.

Our software and instruments have been used by academic research facilities andcompanies around the world to accelerate the R&D process.

Greater efficiencies insolar cells, flexible OLED screens, brighter more stable pixels have allbeen achieved with the help of our products.

Fluxim was launched with thesimulation software Setfos.

Setfos comes with four modules: Emission, Drift-Diffusion, Advanced Optics and Absorption.

Let's first look at the Emission andAdvanced Optics modules.

A key task for the Setfos Emission module is theoptimization of the layer stack to increase luminance and light outcoupling.

Light extraction enhancement or interface textures are easily analyzedon the computer before going to the lab.

Particle scattering films enhance OLEDlight outcoupling and optical down conversion films enhance LCD panels.

Scattering and down-conversion simulations are some of the keyapplications of the Advanced Optics module.

Setfos' Drift-Diffusion allows one to reproduce measured electrical signals inDC, AC and transient operation of the semiconducting device but also to lookinside the device to understand operating mechanisms.

The example shown here is for an OLED.

The absorption module allows you tomaximize light absorption in the device through modeling different layerthicknesses in your stack.

Setfos has a broad application use forresearchers working with semiconducting devices.

Typically our customers areusing it in the fields of LEDs and photovoltaics.

Setfos can also be usedin the development of next-generation battery technologies.

To support upscaling in the production process on large-area devices wedeveloped the simulation software Laoss.

Laoss comes with electrical and thermalsolvers with these modules you can simulate the potential and currentdistribution in large area electrodes.

The example shows problematic electricalpixel cross talks due to common layers in RGB OLED displays with high PPI.

Youmay also study Joule heating in the devices due to current flowing in theactive layers or in undesired shunts and defects.

Optics is the third module availablewith Laoss.

The 3D Ray Tracer allows one to study optical pixel crosstalk in realAMOLED panels and topographies, moreover, light-guiding flexible substrates can beanalyzed with Laoss optics.

Laoss is typically used by our customerswho require software to develop large area devices.

For model validation and parameterextraction an R&D scientist needs reliable measurement systems.

To meetthis need Fluxim developed four high precision instruments.

Paios replacesmany instruments that were traditionally required to perform a range ofcharacterization experiments.

The new approach is to use the all-in-oneinstrument Paios for DC, AC and transient analysis.

Paios delivers consistentdatasets with rich information for model validation and parameter extraction.

the Paios data is directly analyzed with the basic post-processing routines forparameter estimation, optionally a combination with the electricalsimulation software Setfos for parameter fitting is also possible.

Thisgives insight into device operation and also allows one to establish anextensive material database.

Paios is used by researchers workingwith LEDs, solar cells and batteries.

The angular luminescent spectrometerPhelos is another instrument that delivers data to be analyzed with Setfos.

Phelos combines both electroluminescenceand photoluminescence modes in one instrument, thereby one can validateoptical OLED models and check angular colour stability.

In addition, one candetermine the emitter orientation of molecules in the emissive OLED film aswell as the emission zone profile in the EML.

QD down-conversion films are alsoeasily measured with Phelos.

Phelos is used by researchers workingwith a variety of light-emitting devices and solar cells.

Our next measurement platform is Litos.

Litos is an advanced solar cell and LED lifetime stability measurementsystem.

Litos can hold up to four samples at different temperature andatmospheric conditions.

Up to 32 channels or LED pixels can be drivensimultaneously at individual current levels this allows for thoroughaccelerated lifetime testing.

Further insight can be gained with periodicinterruption of stressing for advanced characterization with Paios.

Litos is used as a lifetimestress testing platform for researchers developing next-generation LEDs, photovoltaics and batteries.

The latest addition to our measurementsystems is Litos Lite.

Litos Lite is a stress testingplatform used for measuring JV curves as well as for stability measurements insolar cells.

It is available with up to 56 channels.

Channels can be combined toachieve higher current for large area samples.

There are several extensionsavailable with Litos Lite.

Litos Lite has been designed forresearchers specifically working on solar cell development.

Over 200 scientific papers have been published using Fluxim's tools.

Forover two decades we have been trusted by industry and leading academicInstitutes.

We also pride ourselves on veryextensive customer support, routinely helping our customers to set up complexexperiments troubleshoot problems or even develop new functions to helpadvance their research.

If you'd like to discuss our products further you cancontact us by email or telephone and please check us out on Twitter orLinkedIn or you can simply visit our website tofind out more.

Thanks for watching.

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