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The charge and spin-dependent thermoelectric responses are investigated on asingle-helical molecule possessing a collinear antiferromagnetic spinarrangement with zero net magnetization in the presence of a transverseelectric field. Both the short and long-range hopping scenarios are considered,which mimic biological systems like single-stranded DNA and $\alpha$-proteinmolecules. A non-equilibrium Green's function formalism is employed followingthe Landauer-Buttiker prescription to study the thermoelectric phenomena. Thedetailed dependence of the basic thermoelectric quantities on helicity,electric field, temperature etc., are elaborated on, and the underlying physicsis explained accordingly. The charge and spin \textit{figure of merits} arecomputed and compared critically. For a more accurate estimation, the phononiccontribution towards thermal conductance is also included. The presentproposition shows a favorable spin-dependent thermoelectric response comparedto the charge counterpart.

Thermoelectric phenomena in an antiferromagnetic helix: Role of electric field