OLEDWorks, in collaboration with researchers at the University of Michigan and RTX Technology Research Center, have successfully demonstrated a hybrid OLED microdisplay upconversion device that converts near-infrared (NIR) light into visible light with exceptional efficiency and responsiveness.
The newly developed device integrates a multi-stack OLED with a silicon-based photodiode, forming a bistable system that leverages positive optoelectronic feedback. The result is a photon-to-photon upconversion gain of up to 900%, triggered by NIR light intensities below 1 µW/cm²—a performance level that sets a new benchmark for hybrid upconversion systems.
OLEDWorks says that this new device is opening new possibilities for compact, low-power devices that respond to light in ways previously thought unattainable. The new device offers an extended spectral response into the NIR range (up to 1.1 µm), with potential to reach 1.7 µm using alternative semiconductor materials, and it has bistable operation that enables threshold-like switching behavior ideal for imaging and signal processing.
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