Performance Investigation Of The Lifetime Of Solar Cell Using Surface Photovoltage (Spv) Method And Efficiency Measurement

Abstract

In this paper, the optical characterisation of mono crystalline fabricated solar cells has been investigated focusing on the minority carrier flow using surface photovoltage (SPV) technique and the efficiency of the solar cells has been evaluated by means of the sun simulator analysis. A computer-controlled incidence measurement system was conceived for SPV evaluations based on a mini mono-chromator, which was driven by a stepper motor to various wavelengths in the spectral range of 400–1200 nm. SPV is typically quantified by means of Standard Research 510 lock-in amplifiers. A LabVIEW platform is employed for system control and data acquisition. Every step of the measurement has been described in detail throughout the completely experimental procedure. Once computing the testing data acquired from monocrystalline silicon solar cell measurement, the length (L) of the minority carrier diffusion and lifetime (τ) were evaluated and results derived were 92 µm and nearly 3.135 µs, respectively. From the experimental data we have successfully found the efficiency as 16.05% using the Sun Simulator K3000 LAB55. The results from the experimental data has promising application to assess the quality of the solar cells that are being used. © 2021. International Journal of Renewable Energy Research.All Rights Reserved