We disclose the synthesis and use of chiral ionic liquids based on a substituted pentose, furanose, hexose, or pyranose sugar. In one embodiment the accurate location of the mobile unit is determined by a global position fix, after which a coverage map is consulted to verify the availability of a preferred network before initiating a background scan. Conductive interconnect elements on the first integrated circuit fabricated structure provide electrical connection between individual photo sensors and the operative circuitry on the second integrated circuit fabricated structure.