Referring to Problem 8.11, consider an ideal photodiode with no internal resistance.

(a) Under an illumination of \(1000 \mathrm{~W} / \mathrm{m}^{2}\), at \(300 \mathrm{~K}\), what is the maximum power the photodiode can deliver to a load. What is the efficiency? Do this by trial and error and be satisfied with three significant figures in your answer.

(b) What is the load resistance that leads to maximum efficiency?

Observe that the \(I-V\) characteristics of a photodiode are very steep at the high current end. In other words, the best operating current is only slightly less that the short-circuit current.

Problem 8.11

What is the theoretical efficiency of a photodetector with a \(2.5 \mathrm{eV}\) bandgap when exposed to \(100 \mathrm{~W} / \mathrm{m}^{2}\) solar radiation through with transmittance,

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1; if 600 nm < < 1000 nm Yr 0; if <600 nm or > 1000 nm