Abstract
With good composition control in both p-type cap and n-type base LPE layers, it is possible to make barrier-free two-layer P-on-n HgCdTe heterojunction photodiodes with very long cutoff wavelengths. Diode arrays with good RoA operability, good quantum efficiency, and low 1/f noise at 60K have been demonstrated at cutoff wavelengths to 16.3µm. The diode performance continues to improve at lower temperatures, following a diffusion-current trend to at least 35K. Measured RoA values of 2×105 ohm-cm2 for an 18 µm cutoff at 35K are the highest reported at this very long wavelength. A simple defect model applied to the area dependence of RoA at 40K implied a defect areal density of 3×104 cm−2 and a defect impedance of 3×106 ohm.
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References
E.E. Krueger, G.N. Pultz, K.R. Maschhoff, S.P. Tobin, P.W. Norton, J.H. Rutter and M.B. Reine, Mater. Res. Soc. Symp. Proc. 299 (Pittsburgh, PA: Mater. Res. Soc., 1993).
G.N. Pultz, P.W. Norton, E.E. Krueger and M.B. Reine, J. Vac. Sci. Technol. B 9, 1724 (1991).
P.R. Bratt, J. Vac. Sci. Technol. A 1, 1687 (1983).
K. Zanio and K. Hay, Mater. Res. Soc. Symp. Proc. 90, (Pittsburgh, PA: Mater. Res. Soc., 1987), p. 39.
K. Kosai and W.A. Radford, J. Vac. Sci. Technol. A 8, 1254 (1990).
F.L. Madarasz and F. Szmulowicz, J. Appl. Phys. 66, 3082 (1989).
M.H. Weiler and M.B. Reine, J. Electron. Mater. 24, 1329 (1995).
S.P. Tobin, E.E. Krueger, G.N. Pultz, M. Kestigian, K.-K. Wong and P.W. Norton, J. Electron. Mater. 22, 959 (1993).
M.B. Reine, K.R. Maschoff, S.P. Tobin, P.W. Norton, J.A. Mroczkowski and E.E. Krueger, Semicond. Sci. Technol. 8, 788 (1993).
S.P. Tobin, M.A. Hutchins and P.W. Norton, unpublished (Aug. 1998).
M.H. Weiler and G.J. Tarnowski, J. Electron. Mater. 26, 635 (1997).
M.A. Hutchins, F. Smith, S.P. Tobin and P.W. Norton, J. Electron. Mater. 28, 624 (1999).
D.R. Rhiger, R.D. Rodriguez and J.M. Peterson, unpublished (Aug. 1991). Also S.M. Johnson, D.R. Rhiger, J.P. Rosbeck, J.M. Petersen, S.M. Taylor and M.E. Boyd, J. Vac. Sci. Technol. B 10, 1499 (1992).
D.R. Rhiger, J.M. Peterson, F.I. Gesswein and C.A. Cockrum, unpublished (Aug. 1992).
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Tobin, S.P., Weiler, M.H., Hutchins, M.A. et al. Advances in composition control for 16 µm LPE P-on-n HgCdTe heterojunction photodiodes for remote sensing applications at 60K. J. Electron. Mater. 28, 596–602 (1999). https://doi.org/10.1007/s11664-999-0041-y
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DOI: https://doi.org/10.1007/s11664-999-0041-y