An aerogel substrate useful for an electrically conductive substrate, a
heat insulating substrate, an optical waveguide substrate, a substrate for
a light emitting device or a light emitting device is provided.
The aerogel substrate is characterized by comprising a functional layer and
an aerogel layer, and an intermediate layer formed between the functional
layer and the aerogel layer to allow the functional layer to be formed
uniformly thereon. The intermediate layer is formed on at least one
surface of the aerogel layer by a gas phase method, by the
Langmuir-Blodgett method or by adsorption of an inorganic layered
compound; or formed by a hydrophilicizing treatment of at least one
surface of the aerogel layer followed by coating and drying an aqueous
coating fluid, by an annealing treatment of at least one surface of the
aerogel layer, or by a hydrophilicizing treatment of at least one surface
of the aerogel layer.
