Question
In: Physics
Define quantum efficiency as it applies to photon detectors and describe two instances of photon detectors...
Define quantum efficiency as it applies to photon detectors and describe two instances of photon detectors where the term "quantum efficiency" is a relevant and important property.
Solutions
Expert Solution
Quantum efficiency is the ratio of number of charge carriers generated and the number of photons incident on the photodetector. So, maximum quantum efficiency can be unity (1 electron-hole pair generated by one photon). Quantum efficiency is of two types:
i] External quantum efficiency: It has to do with the optical losses and light trapping abilities of the solar cell.
ii] Internal quantum efficiency: Related to intrinsic nature of the semi-conductor material used (band-gap).
Quantum efficiency is important for a photodiode and a solar cell as it gives a quantitative measure of how large the photocurrent will be produced for the incident radiation on it.
genius_generous answered 2 years agoRelated Solutions
1. Why are the thermal detectors slower and less sensitive than the photon detectors? 2. What...
1. Why are the thermal detectors slower and less sensitive than
the photon detectors?
2. What are the physical origins of the shot noise and Johnson
noise in an optical detector?
Concepts/Description a. Discuss the difference between internal quantum efficiency and external quantum efficiency of a LED....
Concepts/Description
a. Discuss the difference between internal quantum efficiency
and external quantum efficiency of a LED.
b. Describe the operation of a photodiode
Please compare : wall-plug efficiency and external quantum efficiency . Why we need these different efficiency...
Please compare : wall-plug efficiency and external quantum
efficiency . Why we need these different efficiency ?
a. What is a market failure? Define the two important instances in which market failure can...
a. What is a market failure? Define the two important
instances in which market failure can occur.
b. What is the social value of a good include in the
presence of positive externality?
Question : Identify and describe two specific instances of business intelligence that (to the best of...
Question :
Identify and describe two specific instances of
business intelligence that (to the best of your current knowledge)
your organization does not currently have, but should aggressively
pursue obtaining or creating within the next 2 – 6 months. In the
space below: describe the intelligence you think you need to
pursue, tell me what data the intelligence should be based upon,
tell me how that data could be collected, tell me how the raw data
should be turned into...
Question : Identify and describe two specific instances of business intelligence that (to the best of...
Question :
Identify and describe two specific instances of
business intelligence that (to the best of your current knowledge)
your organization does not currently have, but should aggressively
pursue obtaining or creating within the next 2 – 6 months. In the
space below: describe the intelligence you think you need to
pursue, tell me what data the intelligence should be based upon,
tell me how that data could be collected, tell me how the raw data
should be turned into...
Question : Identify and describe two specific instances of business intelligence that (to the best of...
Question :
Identify and describe two specific instances of
business intelligence that (to the best of your current knowledge)
your organization does not currently have, but should aggressively
pursue obtaining or creating within the next 2 – 6 months. In the
space below: describe the intelligence you think you need to
pursue, tell me what data the intelligence should be based upon,
tell me how that data could be collected, tell me how the raw data
should be turned into...
Define, give examples, and discuss the role of several instances in supporting arguments. Define, give examples,...
Define, give examples, and discuss the role of several instances
in supporting arguments. Define, give examples, and discuss the
role of statistics in supporting arguments.
1) Define productive efficiency. Does productive efficiency imply allocative efficiency? Explain. Productive efficiency is a situation...
1) Define productive efficiency. Does productive efficiency
imply allocative efficiency? Explain. Productive efficiency is a
situation in which the economy could not produce any more of one
good without sacrificing production of another good. In other
words, productive efficiency occurs when a good or a service is
produced at the lowest possible cost. Productive efficiency can be
defined as producing goods and services for the lowest cost.
Productive efficiency does not imply allocative efficiency because
a firm or an industry...
(a) What is quantum tunneling? (b) Based on the concept of quantum tunneling, describe the working...
(a) What is quantum tunneling?
(b) Based on the concept of quantum tunneling, describe the
working principle of a scanning tunneling microscope.
(c) Explain what is quantum confinement?
(d) You have a metallic nanowire. The length of the nanowire is
1 mm (Comparing with the wave length of electrons, you can think
the length is infinitely long.) The width of the nanowire is 50 nm.
The height of the nanowire is 20 nm. Based on the simple model we
discussed...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- What are the benefits of doing a pilot program before a full scale rollout of a...
- It is a calm summer day in southeast Iowa at the Ottumwa air traffic control radar...
- 1. Write a detailed article on Evolution of attacks on the internet & web [your article...
- Analyze the role of the contingency plan coordinator (CPC) in the scope of preparing a BIA....
- Amazing Manufacturing, Inc., has been considering the purchase of a new manufacturing facility for $500,000. The...
- LANGUAGE: JAVA Create a New Project called YourLastNameDomainName. Write a DomainName class that encapsulates the concept...
- On January 1, 2015 $20,000,000 of 20 year bonds were issued with a coupon rate of...
ADVERTISEMENT