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Effects of carrier escape and capture processes on quantum well solar cells: a theoretical investigation

Effects of carrier escape and capture processes on quantum well solar cells: a theoretical investigation

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A theoretical model is proposed to study the effects of carrier escape and capture processes on the photocurrent of quantum well solar cells (QWSCs). The results show that solar cells with very deep quantum wells (QWs) will suffer from extremely slow escape processes and their photocurrent can be inferior to their bulk counterparts. The results suggest that only when the escape time is at least two-order of magnitude smaller than the carrier lifetime of QWs, solar cells will benefit from QW structures. The optimal band gap energies of QW materials for achieving the maximum photocurrent are also calculated and discussed.

References

    1. 1)
      • M. Mazzer , K.W.J. Barnham , I.M. Ballard . Progress in quantum well solar cells. Thin Solid Films , 76 - 83
    2. 2)
      • A. Zachariou , J. Barnes , K.W. Barnham . A carrier escape study from InP/InGaAs single quantum well solar cells. J. Appl. Phys. , 2 , 877 - 881
    3. 3)
      • S.M. Ramey , R. Khoie . Modeling of multiple-quantum-well solar cells including capture, escape, and recombination of photoexcited carrier in quantum wells. IEEE Trans. Electron Devices , 5 , 1179 - 1188
    4. 4)
      • A. Alemu , J.A.H. Coaquira , A. Freundlich . Dependence of device performance on carrier escape sequence in multi-quantum-well p-i-n solar cells. J. Appl. Phys. , 8
    5. 5)
      • J. Nelson , M. Paxman , K.W.J. Barnham , J.S. Roberts , C. Button . Steady state carrier escape from single quantum wells. IEEE J. Quantum Electron. , 6 , 1460 - 1468
    6. 6)
      • J. Barnes , E.S.M. Tsui , K.W.J. Barnham , S.C. McFarlane , C. Button , J.S. Roberts . Steady state photocurrent and photoluminescence from single quantum wells as a function of temperature and bias. J. Appl. Phys. , 2 , 892 - 900
    7. 7)
      • S.C. McFarlane , J. Barnes , K.W.J. Barnham , E.S.M. Tsui , C. Button , J.S. Roberts . Space charge effects in carrier escape from single quantum well structures. J. Appl. Phys. , 9 , 5109 - 5115
    8. 8)
      • C.-Yi Tsai , C.-Yao Tsai , Y.H. Lo , R.M. Spencer , L.F. Eastman . Nonlinear gain coefficient in semiconductor quantum-well lasers: effects of carrier diffusion, capture, and escape. IEEE J. Sel. Top. Quantum Electron. , 2 , 316 - 329
    9. 9)
      • T.C. Yi , L.F. Eastman , Y.H. Lo , T.C. Yao . Breakdown of thermionic emission theory for quantum wells. Appl. Phys. Lett. , 4 , 469 - 471
    10. 10)
      • Connolly, J.P., Ballard, I.M., Barnham, K.W.J., Bushnell, D.B., Tibbits, T.N.D., Roberts, J.S.: `Efficiency limits of quantum well solar cells', Proc. 19th European Photovoltaic Solar Energy Conf., 2004, p. 355–358.
    11. 11)
      • Connolly, J.P., Führer, M.F., Johnson, D.C.: `Mirrored strain-balanced quantum well concentrator cells in the radiative limit', Proc. 4th Int. Conf. Solar Concentrators for the Generation of Electricity or Hydrogen, 2007, p. 21–24.
    12. 12)
      • N.G. Anderson . Ideal theory of quantum well solar cells. J. Appl. Phys. , 3 , 1850 - 1861
    13. 13)
      • D.M.-T. Kuo , Y.C. Chang . Dynamic behavior of electron tunneling and dark current in quantum-well systems under an electric field. Phys. Rev. B , 23 , 15957 - 15964
    14. 14)
      • J. Nelson , J. Barnes , N. Ekins-Daukes . Observation of suppressed radiative recombination in single quantum well p-i-n photodiodes. J. Appl. Phys. , 12 , 6240 - 6246
    15. 15)
      • Q. Wei , K.T. Shiu , N.C. Giebink , S.R. Forrest . Thermodynamic limits of quantum photovoltaic cell efficiency. Appl. Phys. Lett. , 22
    16. 16)
      • T.C. Yi , C.H. Chen , T.L. Sung , T.C. Yao , J.M. Rorison . Theoretical modeling of the small-signal modulation response of carrier and lattice temperatures with the dynamics of nonequilibrium optical phonons in semiconductor lasers. IEEE J. Sel. Top. Quantum Electron. , 3 , 596 - 605
    17. 17)
      • S.M. Sze . (1981) Physics of semiconductor devices.
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