Need explanation regarding the basic formula and mathematical expression of EQE in term of short-circuit current (Jsc)
Hi,
You can check this. It would be better to read a book regarding this.
if you want send me an email, i already did such extended reseach i can avoid you days of navigating online and reading... [email protected].
regards
Dear Shawana
Please send this book and if you have some reference regarding to solar Cell please me, email [email protected]
External Quantum Efficiency (EQE) for a photovoltaic device is the ratio of extracted free charge carriers to incident photons. This ratio is obtained by measuring the photocurrent spectrum of the photovoltaic device under test and comparing it to the photocurrent spectrum of a calibrated reference photodetector, thereby removing the spectral characteristics of the test system. Relative and arbitrary unit EQE measurements can be obtained quite easily when care is taken to ensure similar test conditions for each device under test. Quantitatively accurate measurements require the user to pay attention to details such as illumination intensity and flux distribution of the light source[ref], optical reflectance and interference in device and test chamber[refs], device temperature[ref], and also the definition of the effective active area[ref]. With all of these considerations in addition to the variability of device fabrication protocol in different laboratories, the standardized power conversion efficiency measurement may make the best universal benchmark for device performance. However, the EQE measurement can be broken up into different spectral components and allows for the comparison and analysis of device physics.
please find the attached articles for quantitative analysis of EQE of PV cells.
My favorite website:
http://pvcdrom.pveducation.org/CELLOPER/QUANTUM.HTM
Also, definitely check this out (previously asked question):
https://www.researchgate.net/post/Why_is_the_short_circuit_current_calculated_from_EQE_measurement_different_to_Jsc_from_I-V_measurement_Could_it_be_corrected
You can get details of the derivation of the external quantum efficiency of solar cells by revering to the book in the link: Chapter Solar cells and arrays: Principles, analysis and design
You can refer also to the book of S M Sze, physics of semicondcutor devices.
Best wishes
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