Towards Efficient Self-Powered Screens Using Organic Semiconductors
2026.01.26
Research
Organic semiconductors are useful materials for both electronic displays and solar cells, but combining efficient light emission and power generation in a single device has been difficult. In a recent study, researchers from Japan addressed this challenge by precisely tuning energy states at the interface of advanced optoelectronic materials. Their approach enables high-efficiency operation and full-color emission, paving the way for multifunctional devices that can both produce and harvest light.
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The top image is a schematic of a multifunctional device, with the directions of charge flow specified for the electroluminescence and photovoltaic functionalities. The bottom chart depicts a comparison of multifunctional devices in terms of power conversion efficiency and external quantum efficiency for electroluminescence (light generation).