NOVELTY - The device has first and second glass substrates (102a, 104a) including interior surfaces defined by portions that are proximal to perimeters of the interior surfaces. Continuous glass fibers are placed between the portions, where a cross-section of the glass fibers is circular in shape. The glass fibers are closely and mutually arranged in parallel, where a space between the glass fibers is filled with epoxy resin for creating a glass-to-glass-to-glass integrated seal between the substrates. The seal is impermeable to matter external to device for protecting an environment-sensitive material.    USE - Device e.g. LED, organic LED such as white OLED (W-OLED), active-matrix OLED (AMOLED), passive-matrix OLED (PMOLED), flexible OLED (FOLED), stacked OLED (SOLED), tandem OLED, transparent OLED (TOLED), top emitting OLED, bottom emitting OLED, fluorescence doped OLED (F-OLED) and phosphorescent OLED (PHOLED), photovoltaic cell such as thin-film photovoltaic cell e.g. thin film solar cell, organic solar cell, amorphous silicon solar cell, microcrystalline silicon solar cell, micromorph silicon tandem solar cell, copper Indium Gallium Selenide solar cell and a Cadmium Telluride solar cell, organic photovoltaic cell and liquid crystal device (all claimed). Can also be used for a crystalline photovoltaic device, display, organic display and an aircraft component.    ADVANTAGE - The device allows a glass-to-glass-to-glass sealing structure to decrease chances of permeation of matter external to the device like water and oxygen, thus reducing adverse effect on environmentally sensitive materials. The environmentally sensitive materials used in the glass-to-glass-to-glass sealing structure are cheaper than glass-pocket based designs, thus resulting in a more efficient and cheaper sealing configuration.    DETAILED DESCRIPTION - The environment-sensitive materials are a functional stack of an organic LED.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a structure for encapsulating a functional layer made of environment-sensitive materials in between two glass substrates.    Structure for encapsulating functional layer (100a)    Glass substrates (102a, 104a)    Functional layer (106a)