Experimental realisation of a quantum dot energy harvester (SP Workshop)

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• Miss Gulzat Jaliel (University of Cambridge, Semiconductor Physics Group)
• Wednesday 01 February 2017, 14:15-15:15
• Mott Seminar Room (Mott Building Room 531), Cavendish Laboratory.

If you have a question about this talk, please contact Teri Bartlett.

We demonstrate experimentally a nanoscale energy harvester that utilises the physics of quantum dots. Gate defined quantum dots on GaAs/AlGaAs HEM Ts are placed either side of a hot reservoir. The discrete energy levels of the quantum dots are tuned to be aligned with low energy electrons on one side and high energy on the other side of the hot reservoir. The quantum dots thus act as energy filters and allow a net flow of current.

Reference [1] Andrew N.Jordan, Bjorn Scothmann, Rafael Sanchez, and Markus Buttiker, Phys. Rev. B 87 ,075312 (2013) [2] E.B.Foxman, P.L.McEuen, U.Meirav, Ned S.Wingreen, Yigal Meir, Paul A.Belk, N.R.Belk, and M.A.Kastner, Phys. Rev. B 47 10020 (1993) [3] A.S.Dzurak, C.G.Smith, C.H.W.Barnes, M.Pepper, L.Martin-Moreno, C.T.Liang, D.A.Ritchie, and G.A.C.Jones, Phys. Rev. B 47 R10197 (1997)

This talk is part of the Semiconductor Physics Group Seminars series.

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