NOVELTY - A method of forming a photovoltaic (PV) cell module (20) involves applying first polymeric composition around periphery of front face (26) of substrate (24) and/or rear face (34) of cover sheet (30) to form peripheral tie-layer (40) on face(s) in uncured state; optionally curing tie-layer to cured state; applying second polymeric composition different than first to rear face of sheet to form inner tie-layer (36) in an uncured state; optionally, curing inner tie-layer to cured state; disposing PV cell on inner tie-layer; and combining substrate and cover sheet to form module.    USE - For forming a photovoltaic (PV) cell module (claimed) used to convert light into electricity.    ADVANTAGE - The method provides an improved method that provides modules with improved cohesive strength and durability.    DETAILED DESCRIPTION - A method of forming a photovoltaic (PV) cell module (20) comprising a substrate (24) having a front face (26) and a rear face (28) spaced from the front face, a cover sheet (30) having a front face (32) and a rear face (34) spaced from the front face of the cover sheet, an inner tie-layer (36) disposed between the substrate and the cover sheet for coupling the rear face of the cover sheet to the front face of the substrate with the inner tie-layer having a surrounding edge (38), at least one PV cell disposed within the inner tie-layer, and a peripheral tie-layer (40) also disposed between the substrate and the cover sheet and peripherally disposed around the surrounding edge of the inner tie-layer for further coupling the rear face of the cover sheet to the front face of the substrate, involves the steps of: applying a first polymeric composition around a periphery of the front face of substrate and/or the rear face of cover sheet to form the peripheral tie-layer on the face(s) in an uncured state; optionally curing the peripheral tie-layer to a cured state; applying a second polymeric composition different than the first polymeric composition to the rear face of the cover sheet to form inner tie-layer in an uncured state; optionally curing the inner tie-layer to a cured state; disposing the PV cell on the inner tie-layer formed from the application of the second polymeric composition; and combining the substrate and the cover sheet to form the PV cell module such that the peripheral tie-layer and the inner tie-layer are sandwiched between the substrate and the cover sheet with the PV cell encapsulated by the inner tie-layer. An INDEPENDENT CLAIM is included for a photovoltaic (PV) cell module comprising: a substrate having a front face and a rear face spaced from the front face; cover sheet having a front face and a rear face spaced from the front face of the cover sheet; inner tie-layer disposed between the substrate and the cover sheet for coupling the rear face of the cover sheet to the front face of the substrate with the inner tie-layer having a surrounding edge; at least one PV cell disposed within the inner tie-layer; and a peripheral tie-layer also disposed between the substrate and the cover sheet and peripherally disposed around the surrounding edge of the inner tie-layer for further coupling the rear face of the cover sheet to the front face of the substrate, where the peripheral tie-layer is formed from a first polymeric composition and the inner tie-layer is formed from a second polymeric composition different than the first polymeric composition; and modulus of elasticity of the peripheral tie-layer is greater than a modulus of elasticity of the inner tie-layer.    DESCRIPTION OF DRAWING(S) - The figure shows broken exploded cross-sectional side-view of PV cell module including a PV cell.    Photovoltaic cell module (20)    Substrate (24)    Front face of the substrate (26)    Rear face of substrate (28)    Cover sheet (30)    Front face of cover sheet (32)    Rear face of cover sheet (34)    Inner tie-layer (36)    Surrounding edge (38)    Peripheral tie-layer (40)