What are QE and IPCE?
Quantum Efficiency, or IPCE (Incident Photon-to-electron Conversion Efficiency), is the conversion ratio of the incident photon to electron by a photovoltaic cell. For instance, if there are 100 photons irradiating on the surface of the solar cell and 80 electrons are generated, the Quantum Efficiency of the cell is 80%. Furthermore, because Quantum Efficiency is typically plotted as a curve related to wavelengths, it can also reflect the characteristics under variouw...