The present invention relates to improvements in solar cell and solar panel photovoltaic materials which cause the solar cells/panels to operate more efficiently. In particular, the present invention focuses primarily on matching or modifying particular incident light energies (e.g., from the sun) to predetermined energy levels in a solar cell photovoltaic substrate material required to excite, for example, electrons in at least a portion of the substrate material in a desirable manner. In this regard, for example, energy levels of incident light, and thus, corresponding particular wavelengths, such as desirable wavelength (.gamma.1), or frequenices of incidient light, can be at least partially matched with various desirable energy levels in a substrate material by filtering out at least a portion of certain undesirable incident light, such as that of wavelength (.gamma.2), that comes into contact with at least a portion of a surface of a solar cell photovlataic substrate.