Abstract
Current density and output power of solar cells, respectively, made from different materials combinations:
GaAsp(:Zn)/GaAsP(:Te)/GaAs-CVD
GaAsp(:Zn)/GaAs(:Te)/GaAs-CVD
GaAlAs(:Zn)/GaAs(:Si)-LPE
Silicon,p onn (commercial grade)
have been compared at increasing light levels, i.e. solar concentrations from 1 sun to 100 suns. A strongly super-linear increase in output (current density) is found for the ternary compound cells in agreement with earlier measurements.
The faster rate of increase of the current with concentration in ternary compounds as compared to silicon can be explained by a trap-filling mechanism at higher injection levels.
A Gaussian distribution of compensated donor states can explain the superlinear current increase.
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References
M.Wolf: Proc. IRE48, 1246 (1960)
H.F.Mataré: “Light Emitting Devices”, Pt. 1, inAdvances in Electronics and Electron Physics, Vol. 42 (Academic Press, New York 1976)
L.W.James, R.L.Moon: Appl. Phys. Lett.26, 467–470 (1975)
R.D.Dupuis, P.D.Dapkus, R.D.Yingling, L.A.Moudy: Appl. Phys. Lett.31, 201–203 (1977)
P.T.Landsberg: Solid State Electronics18, 1043–1052 (1975)
P.O.Bell, J.C.T.Ho, W.T.Kurth: “Performance of Silicon Solar Cells Under Concentration”, in “Solar Energy”, Proc. Internat. Sympos. Electrochem. Soc., ed. by B.Berkowitz, I.A.Lesk (1976) p. 237
E.L.Burgess, J.G.Fossum: IEEE Trans. ED-24, 433 (1977)
C.Garadia, B.L.Sater: IEEE Trans. ED-24, 342 (1977)
W.R.Wagner: J. Appl. Phys.49, 173–180 (1978)
A.G.Sabuis: Solid State Electronics21, 581 (1978)
V.L.Dalal, A.R.Moore: J. Appl. Phys.48, 1244 (1977)
B.A.Swartz, T.Cole, A.H.Zewail: Optics Lett.1, 73–75 (1977)
W.H.Weber, J.Lambe: Appl. Opt.15, 2299 (1976)
J.A.Levitt, W.H.Weber: Appl. Opt.16, 2684 (1977)
A.Goetzberger, W.Greubel: Appl. Phys.14, 123 (1977)
See e.g. T.S.Moss, G.J.Burrell, B.Ellis:Semiconductor Opto-Electronics (Butterworths, London 1973)
C.T.Ho, R.O.Bell, F.V.Wald: Appl. Phys. Lett.31, 463–465 (1977)
K.L.Ashley, S.W.Beal: Appl. Phys. Lett.32, 375 (1978)
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Mataré, H.F., Wolff, G.A. Concentration enhancement of current density and diffusion length in III–V ternary compound solar cells. Appl. Phys. 17, 335–342 (1978). https://doi.org/10.1007/BF00886202
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DOI: https://doi.org/10.1007/BF00886202