NOVELTY - The thin-film or crystalline silicon photovoltaic (PV) module comprises a transparent substrate (11), a solar cell, and a backsheet comprising sequentially stacked dielectric layer (17). A pressure sensitive adhesive (14a) is disposed between the solar cell and the dielectric layer to attach them to each other. The pressure sensitive adhesive consists of a silicone-based pressure sensitive adhesive, a rubber-based pressure sensitive adhesive, an acrylic pressure sensitive adhesive, an epoxy pressure sensitive adhesive, and a urethane pressure sensitive adhesive.    USE - Used as a thin-film or crystalline silicon photovoltaic (PV) module (all claimed).    ADVANTAGE - The thin-film or crystalline silicon photovoltaic (PV) module exhibits improved energy conversion efficiency and high reliability.    DETAILED DESCRIPTION - The thin-film or crystalline silicon photovoltaic (PV) module comprises a transparent substrate (11), a solar cell, and a backsheet comprising sequentially stacked dielectric layer (17). A pressure sensitive adhesive (14a) is disposed between the solar cell and the dielectric layer to attach them to each other. The pressure sensitive adhesive consists of a silicone-based pressure sensitive adhesive, a rubber-based pressure sensitive adhesive, an acrylic pressure sensitive adhesive, an epoxy pressure sensitive adhesive, and a urethane pressure sensitive adhesive. The pressure sensitive adhesive has a thickness of less than 100 microns. The transparent substrate comprises a glass superstrate or a plastic superstate. The dielectric layer consists of a foam dielectric layer and a fibrous dielectric layer. The dielectric layer has a thickness of more than 500 microns. The backsheet further comprises a barrier layer and a weather protective layer sequentially stacked on the dielectric layer. An INDEPENDENT CLAIM is included for a method of making a photovoltaic module.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a crystalline silicon photovoltaic module.    Transparent substrate (11)    Encapsulant (12)    Crystalline silicon solar cells (13)    Pressure sensitive adhesive (14a)    Dielectric layer. (17)