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Making OLED displays in the home laboratory

Posted on September 4, 2021 by William

Just a general observation: when your project’s BOM includes ytterbium metal, it’s likely to be interesting.We would say Make your own OLED display at home Absolutely fall into this category.

Of course, the manufacture of organic light-emitting diodes requires more than rare earth metals, the most important of which is experience in this field [Jeroen Vleggaar] Brought to this project. Worked in OLED for many years at Philips, [Jeroen] Ability to handle complex processes, including physical vapor deposition and coordinate organic chemistry of quinolones. Not to mention the quantum physics of all this, the first ten minutes or so of the video below sums it up nicely. From there, it’s all about using photolithography and the aforementioned PVD to build an OLED display with an Alq3 (an electroluminescent organic compound) sandwich structure on an ITO (Indium Tin Oxide) glass substrate. We particularly appreciate the use of resin 3D printers to create photoresist masks and the details of the PVD process.

The display itself looks great-at least for a while. The organic segments begin to oxidize rapidly from the pinholes in the material; a clean room can solve this problem, but this is only a demonstration after all.As a reward, the blue-green light [Jeroen]The display reminds us strongly of the replica Apollo DSKY display [Ben Krasnow] Built for a while.

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