NOVELTY - A front electrode (3) structure comprises front transparent glass substrate (1); first layer containing silicon nitride, silicon oxide, silicon oxynitride and/or tin oxide; second layer containing titanium oxide and/or niobium oxide; third layer containing zinc oxide and/or zinc aluminum oxide; conductive layer containing silver; layer containing oxide of nickel (Ni) and/or chromium (Cr); and transparent conductive oxide (TCO) layer containing indium tin oxide.    USE - A front electrode structure for photovoltaic device (claimed), e.g. solar cells.    ADVANTAGE - The structure has TCO layers provide reduced sheet resistance of overall electrode which increases conductivity and improves overall photovoltaic module output power; increases reflection of infrared (IR) radiation which reduces operating temperature of semiconductor portion of photovoltaic module, and transmission of light in visible region; reduces reflection and total thickness of front electrode coating which can reduce fabrication costs and/or time; improves or enlarges process window in forming TCO layer(s) because of reduced impact of TCO's conductivity on overall electric properties of module given the presence of highly conductive metallic layer(s); and/or reduces risk of thermal stress caused module breakage by reflecting solar thermal energy and reducing temperature difference across the module.    DETAILED DESCRIPTION - Front electrode (3) structure comprises front transparent glass substrate (1); first layer containing silicon nitride, silicon oxide, silicon oxynitride and/or tin oxide; second layer containing titanium oxide and/or niobium oxide, where first layer(s) is located between front substrate and second layer; third layer containing zinc oxide and/or zinc aluminum oxide; conductive layer containing silver, where third layer(s) is provided between conductive layer and second layer; layer containing oxide of Ni and/or Cr; and TCO layer (3a, 3c, 3e) containing indium tin oxide provided between oxide layer and TCO. A layer stack comprising three layers, conductive layer, oxide layer and TCO layer and TCO containing tin oxide, is provided on interior surface of front glass substrate facing the semiconductor film (5) of photovoltaic device. An INDEPENDENT CLAIM is included for a photovoltaic device.    DESCRIPTION OF DRAWING(S) - The drawing is a cross sectional view of photovoltaic device.    Front transparent glass substrate (1)    Front electrode (3)    Semiconductor film (5)    Back contact (7)    Adhesive (9)