Quantum Efficiency Measurement Station

High-precision analysis of photoelectric properties, fully integrated measurement of all parameters with fully automatic control, 

minimizing human error, high-precision measurement ensuring reproducibility.

The Quantum Efficiency Measurement Station is a complete experimental setup designed specifically for the study of the spectral

 response of solar cells. The sample is illuminated by a monochromatic beam generated by a monochromator, which is equipped with 

two light sources: a xenon lamp and a halogen lamp, covering the wavelength range from ultraviolet (UV), visible (VIS), to infrared (IR). 

The instrument, equipped with a bias light extension module, can generate standardized white light (simulating sunlight) using an

 additional xenon lamp and an air mass filter (AM1.5G) to excite the sample. The tested cell is placed on a motorized vacuum XY stage 

with manual Z-axis adjustment, enabling three-dimensional precise positioning to ensure experimental reliability. The measurement

 process is carried out in a shielded chamber that isolates against ambient light and electromagnetic field interference, effectively 

enhancing experimental accuracy. The system is equipped with a dual-band Si/InGaAs photodiode, providing full-spectrum coverage 

and real-time light intensity monitoring data to ensure reliability and stability of measurement results. All components are fully 

automated and controlled via dedicated software, significantly simplifying the experimental workflow while improving efficiency and

 precision. With broad spectral coverage, standardized simulated light sources, high-precision sample positioning, real-time light 

intensity monitoring, and fully automatic control, this system stands as an innovative tool needed in the field of photoelectric research.

"Instrument Measurement Functions"

· I-V characteristics

· Open circuit potential (OCP) under illumination

· Spectral reflectance (R)

· Spectral transmittance (T)

· External quantum efficiency (EQE or IPCE)

· Internal quantum efficiency (IQE or APCE)

· Short-circuit current density

· Fill factor, etc.