Nanophosphors-Based White Light Sources

Nanophosphors for White Light Leds

Flexible White Light Emitting Diodes Based on Nitride Nanowires and Nanophosphors

We report the first demonstration of flexible white phosphor-converted light emitting diodes (LEDs) based on p-n junction core/shell nitride nanowires. GaN nanowires containing seven radial In0.2Ga0.8N/GaN quantum wells were grown by metal-organic chemical vapor deposition on a sapphire substrate by a catalyst-free approach. To fabricate the flexible LED, the nanowires are embedded into a phosp...

High scotopic/photopic ratio white-light-emitting diodes integrated with semiconductor nanophosphors of colloidal quantum dots.

We propose and demonstrate single-chip white-light-emitting diodes (WLEDs) integrated with semiconductor nanophosphors of colloidal quantum dots for high scotopic/photopic (S/P) ratio. These color conversion WLEDs achieve S/P ratios over 3.00, which exceeds the current limit of 2.50 in common lighting technologies, while sustaining sufficient levels of color rendering index.

Stem-based Cathodoluminescence Bioimaging with Using Nanophosphors

Cathodoluminescence (CL) microscopy is a promising new technique having both molecular specificity and nanoscale resolution in biological imaging [1, 2]. CL is light emitted from a material induced by accelerated electrons and its luminescence spectrum depends on the material. By using nanophosphors emit CL as imaging probe, CL microscopy enables multi-color, nanoscale imaging of protein distri...

Ray-Based Rendering for Virtual Light Sources

The ray-based approach is powerful and useful for the description of 3-D images because of its neutrality to all types of 3-D displaying technologies. This approach has been developed in order to reproduce the whole visual data captured at the transmitter. However, for the purpose of augmented reality, not only is the reproduction of real visual data essential, but also the synthesis of virtual...