The following (Attached image) is an external quantum efficiency of a CZTS solar cell with structure Glass/Mo/CZTS/CdS/AZO/Ag. The ideal QE curve would be a rectangle (red curve). The experimental QE is much less than the ideal one because of losses at different regions outlined 1, 2, 3 and 4. Please explain what are those losses.

The following (Attached image) is an external quantum efficiency of a CZTS solar cell with structure Glass/Mo/CZTS/CdS/AZO/Ag. The ideal QE curve would be a rectangle (red curve). The experimental QE is much less than the ideal one because of losses at different regions outlined 1, 2, 3 and 4. Please explain what are those losses.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter30: Atomic Physics

Section: Chapter Questions

Problem 9CQ: Explain why characteristic x rays are the most energetic in the EM emission spectrum of a given...

See similar textbooks

Similar questions

A limitation on how many spectra per second can be recorded by a time-of-flight mass spectrometer is the time it takes the slowest ion to go from the source to the detector. Suppose we want to scan up to m/z 500 for ions with z = 1. Calculate the speed of this heaviest ion if it is accelerated through 5.00 kV in the source. How long would it take to drift 2.00 m through a spectrometer? At what frequency could you record spectra if a new extraction cycle were begun each time the heaviest ion reached the detector? What would be the frequency if you wanted to scan up to m/z 1000?
le (mA) 50 mW/cm2 TU40 mW/cm² 30 mW/cm² (a) Zero (b) 10 mW/cm² (c) 20 mW/cm² (d) 30 mW/cm² 20 mW/cm² 10 mW/cm2 Dark current V₁: (V) Figure 3 A phototransistor with the characteristic shown in Figure 3 has a supply voltage of 20 V and a collector load resistance of 2.5 Kn. Determine the output voltage when the illumination level is
Explain why characteristic x rays are the most energetic in the EM emission spectrum of a given element.
9:04 *il RBS 6.00 86 juexams.com/moodle/m 1 الوقت المتبقی 0:56:02 الدرجة من 0 1.0 علم هذا السؤال Almm radius laser beam is represented by: E = (8.6X 106) sin (kx -wt) (v/m). Let c = 2.998 X 108 m/s, and ɛ,= 8.85 X 10-12 F/m. Calculate the power per unit area produced by this laser beam. الجواب: الصفحة التالية الصفحة السابقة تنقل الاختبار 6 4
The threshold of dark-adapted (scotopic) vision is 2.8 ✕ 10−11 W/m2 at a central wavelength of 500 nm. If light with this intensity and wavelength enters the eye when the pupil is open to its maximum diameter of 8.4 mm, how many photons per second enter the eye? _________photons/s
A photon energy E = 1.00 MeV incident on a detector is distributed in the direction forming an angle of 60 degrees from its initial direction with energy E' equal t o. A. 1.00 MeV B. 0.502 MeV C. 1.502 MeV O D. 1.140 MeV O E. 9.900 MeV
In a laser range-finding experiment, a pulse of laser light is fired toward an array of reflecting mirrors left on the moon by Apollo astronauts. By measuring the time it takes for the pulse to travel to the moon, reflect off the mirrors, and return to earth, scientists can calculate the distance to the moon to within a few centimeters. A single mirror receives 0.38 W of power during a 100-ps-long pulse of 532-nm-wavelength laser light. How many photons are in the pulse?
Which photons below have the least irradiance per volt? Spectral parts IR-C IR-B IR-A 700 VIS UVA UVB 600 500 400 300 200 100 0. 2 3. 4 Photon energy [eV] 0.5 eV 1.5 eV 2.5 eV 3.5 eV Spectral irradiance [W/m2eV]
An advanced (but still passive) metal detector induces a "response" field in a lost coin at the beach. The response field happens because: a. $E · ƏA = b. $B· JA = 0 c. $E· a : at ade d. $B · al = µo(1 + €,) at
The wavelength of visible photons is approximately meters. Energy (electron volts, ev) 102 10 10 10 102 104 10 10 10 gamma ultraviolet infrared short- AM X-rays rays radar |FM TV rays rays wave 1014 10 12 ... 108 Wavelength (meters, m) 10-10 10 104 102 1 102 104 Visible light 400 500 600 700 Wavelength (nanometers, nm) 10^-8 10^-7 10^-6 10^-4
Which photons below have the least irradiance per volt? Spectral parts IR-C IR-B IR-A 700 VIS UVA UVB 600 500 400 300 200 100 Photon energy [eV] 0.5 eV 1.5 eV 2.5 eV 3.5 eV Spectral irradiance [W/m'eV]
A detector has a responsivity of 0.12 ampere per watt at a wavelength of 1.06 μm. What is the quantum efficiency of the detector?