NOVELTY - Solar cell comprises: a substrate; a first doping region (150) and a second doping region (160) positioned in a surface of the substrate; and a passivation layer (170) disposed on the first doping region and the second doping region, where the first doping region and the second doping region are alternately arranged in a grid pattern on the surface of the substrate.    USE - The solar cell is useful for converting photonic energy (solar light energy), into electrical energy using a photoelectric effect.    ADVANTAGE - The solar cell exhibits increased light efficiency by minimizing the distance between the carriers.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) manufacturing (M1) the solar cell, comprising (a) disposing a first doping layer on a substrate, (b) disposing a diffusion preventing layer on the first doping layer, (c) patterning the first doping layer and the diffusion preventing layer to expose a portion of the substrate, (d) forming a second doping layer which is disposed on the exposed portion of the substrate on the diffusion preventing layer, (e) diffusing an impurity from the first doping layer to form the first doping region in a surface of the substrate and (f) diffusing an impurity from the second doping layer to form the second doping region in the surface of the substrate surface, where the exposed portion of the substrate formed by patterning the first doping layer and the diffusion preventing layer and a remaining portion of the first doping layer and the diffusion preventing layer which are not patterned are alternately arranged with a lattice shape, and the first doping region and the second doping region are alternately arranged with the lattice shape; and    (2) manufacturing (M2) the solar cell, comprising (a)-(c) as above per se, injecting ions into the substrate using the first doping layer and the diffusion preventing layer as a mask, and diffusing an impurity from the first doping layer to form a first doping region in a surface of the substrate, where the first doping region forms a positive-negative (PN) conjunction along with a second doping region formed in the surface of the substrate injected with the ions and the portion of the substrate exposed through the patterning of the first doping layer and the diffusion preventing layer and a remaining portion of the first doping layer and the diffusion preventing layer that are not patterned are alternately arranged with a lattice shape, where the first doping region and the second doping region are alternately arranged with a lattice shape.    DESCRIPTION OF DRAWING(S) - The figure shows a top plan view of the solar cell with an added electrode.    First doping region (150)    Second doping region (160)    Passivation layer (170)    First grid electrode (180)    Second grid electrode (190)