  In the present work, we theoretically analyze the steady-state thermoelectric
transport through a single-molecule junction with a vibrating bridge. Thermally
induced charge current in the system is explored using a nonequilibrium Green's
functions formalism. We study combined effects of Coulomb interactions between
charge carriers on the bridge and electron-phonon interactions on the
thermocurrent beyond the linear response regime. It is shown that
electron-vibron interactions may significantly affect both magnitude and
direction of the thermocurrent, and vibrational signatures may appear.
