Indian Journal of Science and Technology

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


Affiliations
1 Department of Electrical Engg., Poornima University, Jaipur, India
2 Department of Physics, Vivekananda Institute of Technology – East, VIT- campus, Jaipur, India
3 Department of Physics, Vivekananda Global University, VIT- campus, Jaipur, India
 

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

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Authors

Ashwini Joshi Thosar
Department of Electrical Engg., Poornima University, Jaipur, India
Manoj Thosar
Department of Physics, Vivekananda Institute of Technology – East, VIT- campus, Jaipur, India
R. K. Khanna
Department of Physics, Vivekananda Global University, VIT- campus, Jaipur, India

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



DOI: https://doi.org/10.17485/ijst%2F2014%2Fv7i5%2F54105