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An international research team led by Technische Universität Dresden (TU Dresden) has found a way to significantly boost OLED efficiency by extracting the trapped photons from OLEDs, which account for about 20% of the light particles that OLEDs generate.
To free trapped photons from white OLEDs, the researchers implemented nanostructures produced by reactive ion etching on a polydimethylsiloxane (PDMS) surface. They were able to control the topography of these quasi-periodic nanostructures by tuning the pretreatment conditions of the PDMS and the reactive ion etching treatment recipes. Mechanical deformations formed on the PDMS surface in response to compressive stress release initialized by the reactive ion etching with…READ MORE