A method for double programming of multi-level-cell programming in a multi-bit-cell of a charge trapping memory that includes a plurality of charge trapping memory cells is provided. Electrode layers are disposed on the exterior surfaces of the substrates, with the electrode layer overlying the transparent substrate being made of a substantially transparent electrically conductive material such as Indium Tin Oxide. Thus, new varieties of ornamental fish of different fluorescence colors from a novel source are developed.