Solar Energy Please Help

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The figure below presents the EQE of a triple junction solar cell with junctions A, B and C under short circuited (V = 0 V) condition.

a) What is the bandgap (in eV) of the absorber layer of the junction A?

b) What is the bandgap (in eV) of the absorber layer of the junction B?

c) What is the bandgap (in eV) of the absorber layer of the junction C?

d) Which of the following statements is TRUE?

1)Junction C acts as the top cell, Junction B as the middle cell, and Junction A as the bottom cell.

2)Junction B acts as the top cell, Junction C as the middle cell, and Junction A as the bottom cell.

3)Junction A acts as the top cell, Junction B as the middle cell, and Junction C as the bottom cell.

Each junction is illuminated under standard test conditions. Given the photon fluxes below, calculate the short-circuit current density (in mA/cm2) of each (separate) junction (A, B and C):

ϕ=9.3∗1020m−2s−1 for 300nm<λ<650nm

ϕ=8.4∗1020m−2s−1 for 650nm<λ<850nm

ϕ=1.4∗1021m−2s−1 for 850nm<λ<1250nm

e) Jsc of Junction A:

f) Jsc of Junction B:

g) Jsc of Junction C:

h) The Voc of each junction in V can be roughly estimated by the equation

Voc=Egap(J)2q=Egap(eV)2
where q is the elementary charge, Egap(J) is the bandgap energy expressed in Joules, and Egap(eV) is the bandgap energy expressed in eV. Assume a fill factor of FF=0.75. What is then the efficiency (in %) of the triple junction solar cell?

  • Solar Energy Please Help -

    d) Junction A acts as the top cell, Junction B as the middle cell, and Junction C as the bottom cell.

  • Solar Energy Please Help -

    Can you also give out the rest of the answers?? thanks

  • Solar Energy Please Help -

    Someone has the others results please???

  • Solar Energy Please Help -

    Hey guys i exchange the answers of this question with the assignment 5...
    just let me know

  • Solar Energy Please Help -

    hi

    anyone have the answers to this Q

  • Solar Energy Please Help -

    Add the missing figures please

  • Solar Energy Please Help -

    a 1447
    b.45
    c.25

  • Solar Energy Please Help -

    None is true answer sorry

  • Solar Energy Please Help -

    This is the link to the image

    postimg org/image/fsra4o0h1/

  • Solar Energy Please Help -

    Please help...

  • Solar Energy Please Help -

    PLEASE HELP

  • Solar Energy Please Help -

    The figure below presents the EQE of a triple junction solar cell with junctions A, B and C under short circuited (V = 0 V) condition.
    EQE table is:

    A: EQE = 0.7 wavelength= 300 to 650 nm
    B: EQE = 0.9 Wavelength= 650 to 850 nm
    C: EQE = 0.8 Wavelength= 850 to 1250 nm

    a) What is the bandgap (in eV) of the absorber layer of the junction A?

    b) What is the bandgap (in eV) of the absorber layer of the junction B?


    c) What is the bandgap (in eV) of the absorber layer of the junction C?

    d) Which of the following statements is TRUE?

    Junction C acts as the top cell, Junction B as the middle cell, and Junction A as the bottom cell.
    Junction B acts as the top cell, Junction C as the middle cell, and Junction A as the bottom cell.
    Junction A acts as the top cell, Junction B as the middle cell, and Junction C as the bottom cell

    TRIPLE JUNCTION SOLAR CELL - III
    Each junction is illuminated under standard test conditions. Given the photon fluxes below, calculate the short-circuit current density (in mA/cm2) of each (separate) junction (A, B and C):

    ϕ=9.3∗1020m−2s−1 for 300nm<λ<650nm

    ϕ=8.4∗1020m−2s−1 for 650nm<λ<850nm

    ϕ=1.4∗1021m−2s−1 for 850nm<λ<1250nm

    e) Jsc of Junction A:


    f) Jsc of Junction B:


    g) Jsc of Junction C:

    TRIPLE JUNCTION SOLAR CELL - IV
    h) The Voc of each junction in V can be roughly estimated by the equation

    Voc=Egap(J)2q=Egap(eV)2
    where q is the elementary charge, Egap(J) is the bandgap energy expressed in Joules, and Egap(eV) is the bandgap energy expressed in eV. Assume a fill factor of FF=0.75. What is then the efficiency (in %) of the triple junction solar cell?

  • Solar Energy Please Help -

    bandgaps:
    a) 1.9
    b) 1.46
    c) 0.992

  • Solar Energy Please Help -

    @foxman thinks

  • Solar Energy Please Help -

    plz answer
    e,f,g,h parts

  • Solar Energy Please Help -

    Please answer e,f,g,h

  • Solar Energy Please Help -

    e) 10.4302
    f) 12.1125
    g) 17.9444

  • Solar Energy Please Help -

    H. 17.022

  • Solar Energy Please Help -

    d) Which of the following statements is TRUE?

    1-Junction C acts as the top cell,
    2-Junction B as the middle cell, and
    3-Junction A as the bottom cell.
    Junction B acts as the top cell, Junction C as the middle cell, and Junction A as the bottom cell. Junction A acts as the top cell, Junction B as the middle cell, and Junction C as the bottom cell.
    Please help

  • Solar Energy Please Help -

    d) Junction A top
    Junction B middle
    Junction C bottom

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