Optimization of Anti-reflection Coating for Improving the Performance of GaAs Solar Cell

Ashwini Joshi Thosar; Manoj Thosar   and R  K  Khanna

doi:10.17485/ijst/2014/v7i5.11

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Optimization of Anti-reflection Coating for Improving the Performance of GaAs Solar Cell

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2014/v7i5.11

Year: 2014, Volume: 7, Issue: 5, Pages: 637–641

Original Article

Optimization of Anti-reflection Coating for Improving the Performance of GaAs Solar Cell

Ashwini Joshi Thosar¹ , Manoj Thosar^2* and R. K. Khanna³

1 Department of Electrical Engg., Poornima University, Jaipur, India;
2 Department of Physics, Vivekananda Institute of Technology – East, VIT- campus, Jaipur, India; labhesh9@gmail.com,
3 Department of Physics, Vivekananda Global University, VIT- campus, Jaipur,India

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

The objective of this work is to reduce the front surface reflectivity of the GaAs solar cell by depositing AR-coating of appropriate thickness and refractive index material. We use MgO and ZnO film and optimize their thickness for minimum reflectivity. Results indicate that the reflectivity is reduced up to 4% for MgO film and 2% for ZnO film at solar spectrum wavelength range from 550 nm to 650 nm. The external efficiency of GaAs solar cell with AR-coating is increased by 31.53% and 33.09% for MgO and ZnO film respectively.

Keywords: AM1.5D Spectrum, Anti-reflection Coating, External Efficiency, Fresnel Reflection, Interference of Light