Question

In this section, we talked about combining a solar cell with a photoelectrode to form a photoelectrochemical device. Why do we add a solar cell in the system?
a)Because the photoelectrode is not able to produce any voltage difference to drive the reaction
b)Because the photoelectrode is not able to produce any current to drive the reaction
c)Because the voltage difference created in the photoelectrode is not able to produce enough voltage to drive the reaction
d)Because the current created in the photoelectrode is not enough to drive the reaction


What is the approximate voltage that the solar cell needs to deliver for the photoelectrochemical device to work?

a)0.6V
b)1.23V
c)1.43V
d)0.8V

Answer 1

c)Because the voltage difference created in the photoelectrode is not able to produce enough voltage to drive the reaction

c 1.43V

Answer 2

c)Because the voltage difference created in the photoelectrode is not able to produce enough voltage to drive the reaction
c)1.43V

Answer 3

1-C
2-C(1.43V)