- Optics C 3x10 M S V Fa Ii 1 1 1 F D Do N Sin N Sin N Hi Di Hi M Di Do M Material Ho Do Ho When You Look At A 1 (27.84 KiB) Viewed 30 times
- Optics C 3x10 M S V Fa Ii 1 1 1 F D Do N Sin N Sin N Hi Di Hi M Di Do M Material Ho Do Ho When You Look At A 2 (28.57 KiB) Viewed 30 times
- Optics C 3x10 M S V Fa Ii 1 1 1 F D Do N Sin N Sin N Hi Di Hi M Di Do M Material Ho Do Ho When You Look At A 3 (42.17 KiB) Viewed 30 times
You are a scientist working to determine the best material for absorbing sunlight in a solar cell. The ability of a material to absorb sunlight is often described as the absorbance spectrum of a material. The absorbance spectra for three different materials appears below: 0.25 FS 0.20 0.15 Absorbance (00) 0.10 0.05 0.00 400 800 1200 1000 2000 Wavelength (nm) 0.16 COS 0.12 Absorbance (O) 0.08 0.04 0.00 400 300 1200 1600 2000 Wavelength (m) 0.16 T Co. 0.12 Absorbance 100) 0.00 0.04 0.00 400 800 1200 1600 2000 Wavelength (m) (Image from: Kinner, et al (2016). http://pubs acs.org/doi/abs/10.1021/act.poe. 5611204)
The amount of sunlight that strikes the Earth's surface is described below. 08 Robe Spot 04 02 500 800 300 1000 1100 600 700 Wavelength From the above data, which is the best material for absorbing incident sunlight and why? (DOK 3) 1) Fes, 2) Cos₂ is the most effective absorbance material because it has the highest absorbance in the region that is most incident on the Earth's surface 2 CoS2 is the most effective absorbance material because it has some absorbance across the entire spectrum incident on the Earth's surface 3) Coo.sFe0.5S2 is the least effective material because the it absorbs less than the other two materials at any wavelength 4) FeS2 is the least effective, because it barely absorbs light above 1200 nm, which is the region where most of the Sunlight occurs