Pv Measurements
IPCE measurement Sys
10년
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화합물 전처리·분석장비 > 달리 분류되지 않는 화합물 전처리 분석장비 >
2006-06-02
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IPCE or Quantum Efficiency (QE) is a measure of how efficiently the device converts the incident light into electrical energy at a given wavelength
The principle of EQE measurement is based on illuminating the sample by a monochromatic light and recording the device electrical current (number of generated carriers). By varying the frequency of the light the entire curve of the current as a function of wavelength can then be established. Figure 1 shows an example of an EQE curve for a typical P3HT:PCBM based device. The area under the curve will then represent the total number of carriers created by the device under full spectrum white light illumination. In other words, the integration of the curve will give the electrical current density.