counter electrode configuration seen for example in fig5 and 6 that is the product of the design of this invention is a photonic structure when the protruding electrode elements are a metal or metal coated tcm there can also result additional photon density modifications due to plasmonics and photonics effects representative tcms illustratively include indium tin oxide and tin oxy fluoride the structures of fig5 7 are usually termed superstrate solar cells in that they have the light entering the cell through the mechanical support layer a of these figures it is appreciated that an inventive device is operative as either a superstrate cell mechanical support as shown in the accompanying figures or through the substrate cell free surface table i provides some additional superstrate and substrate lccm devices based on employing arrays of unit cell absorber protrusions these may have various spacings l and the ramifications of this in terms of the truncation of the undulations is seen in fig1 a and b computer simulations comparing the performance of these four designs are presented in fig1 17 while the design concepts of this invention can be applied to any absorber and either drift or diffusion collection these computer simulation results of fig1 17 are for.