Blue light is vital for light-emitting devices, lighting applications, as well as smartphone screens and large screen displays. However, it is challenging to develop efficient blue organic ...

Here we demonstrate high-performance green and blue QD-LEDs achieved by strategically eliminating electron leakage in device operation. We reveal that in green and blue QD-LEDs, electron leakage from ...

Display screens are an essential component of many modern electronic devices, including smart phones, smart watches, laptops and tablets. Conventional displays—including liquid crystal displays and ...

An upconversion organic light-emitting diode (OLED) based on a typical blue-fluorescence emitter achieves emission at an ultralow turn-on voltage of 1.47 V. The technology circumvents the traditional ...