[Fabrication and spectral analysis of a novel panel full color device]

It is demonstrated that a new solid-state cathodoluminescence device based on accelerated electron in SiO2 can be fabricated using organic light emitting materials as a fluorescent film. This device (the device of sandwiched structure) is composed of a glass substrate, an ITO layer, a double SiO2 films, and an organic fluorescent film. When a bias voltage is applied to the devices, they can uniformly emit red, green, and blue light. To some extent, when the voltage is low, the red (green) emission is obtained; and when the voltage is high, the blue emission is acquired. These emissions belong to the solid-state cathodoluminescence, they originate from the accelerated electrons in SiO2, which bombard the organic layers. Their devices have achieved full color (RGB) lighting and improved blue emitting.