UC San Diego

Electrophoretic deposition (EPD) is a facile method to produce phosphor particulate films for solid-state lighting applications. EPD has produced films in the conformal (deposited directly on the LED) or remote configurations (deposited on a substrate above the LED). Films of different blended phosphor compositions have been deposited to produce white emission, either by excitation with blue-emitting or near UV-emitting LEDs. Layered films of sequentially deposited phosphors have also been shown to produce white light. The key results from both experiments and theory are described and summarized, which show the utility of EPD as a phosphor particle coating method.