Which of the following mechanisms can be used in order to split a high energy photon in two (or more) lower energy photons?
A: Multi-junction
B: Up-conversion
C: Down-conversion
D: Intermediate band
A: Multi-junction
B: Up-conversion
C: Down-conversion
D: Intermediate band
举一反三
- The energy conversion can take place _______.
- Energy conversion, which means the transformation of different energy forms, constitute the basic process of our energy usage.
- After they are produced from acetyl-CoA in the liver, ketone bodies are mainly used for which one of the following processes A: Excretion as waste products B: Energy generation in the live C: Conversion to fatty acids for storage of energy D: Generation of energy in the tissues E: Generation of energy in red blood cells
- The energy transmitted to the wheels to propel the vehicle's motion comes from at least two different energy conversion devices.
- Energy conversion efficiency (η) is the ratio between （ ）and （ ）.