Method and Apparatus for Measuring Quantum Efficiency and Conversion Efficiency of Sollar Cell with Single Lightsource

摘要

An apparatus and method for measuring the conversion efficiency and quantum efficiency of a solar cell using a single light source, when measuring the conversion efficiency of the solar cell, the light output from the light source passes through a shutter, a collimating lens, In the case of measuring the quantum efficiency of a solar cell, the light output from the light source is reflected by a reflection mirror, and passes through a spectroscope, a chopper, and an optical lens to irradiate a single light to the solar cell. The present invention can measure both the quantum efficiency and the conversion efficiency of a solar cell in one device, thereby realizing a very small size of the measurement device, thereby greatly increasing the device cost and efficiency.