Design, Fabrication and Investigation of Semitransparent Thermoelectric Cells Based on Graphene

The design, fabrication and investigation of the graphene-In-SnO2 (indium tin oxide (ITO)) based bilayer semitransparent thermoelectric cells are described. The cells were fabricated by encapsulating the graphene powder in the form of narrow strips on the transparent flexible plastic substrates covered by ITO. Between the parallel graphene strips, there were transparent ITO strips of the same width. This structure made the thermoelectric cells semitransparent. It was observed that Seebeck coefficient and figure of merit of the thermoelectric cell increased with temperature. The output voltage of the cells also increased with increase in gradient of temperature. The obtained results may be used for the development of the semitransparent solar thermoelectric cells because this technology is cheaper and simple as compared to semitransparent solar cells technologies.