Question

Problem 17.27 - Enhanced - with Feedback 202 Review Constants Periodic Solar cells are given antireflection coatings to maximize the efficiency. Considera silicon solar coins - 3.50) coated with a layer of silicon dioxide - 1.45) Part A What is the coating but not that will the election at the wavelength of 703 nm where solar cells are most efficient Express your waters ΠΡΟΙΑΣ

Answer 1

the condition for distructive interference of light reflecting from the coating of silicon dioxide on silicon cell, 1 2 n silicon dcost = m- la m=1,2,3 when ( nsilicon n cell 2 consider m=land normal incidencecost=1 d=thickness of silicon dioxide coating n=refractive index of coating layer=1.45 N=wavelegth = 703nm minimum thickness of the coating,form=1 weplug the know values in the relation gives 1 d 22n. 1silicon 121.2nm

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