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Simulation of the Performance of CdTe/CdS/ZnO Multi- Junction Thin Film Solar Cell

Shoewu, O

,

Anuforonini, G

,

Duduyemi, O

Shoewu, O 1 ,

Anuforonini, G 1 Duduyemi, O 3

  1. Deapartmen of Electronic and Computer Engineering, Lagos State University, Epe Campus, Nigeria 1

  2. Department of Chemical and Polymer Engineering Lagos State University, Epe Campus, Nigeria 3

Pages: 1-10

DOI: 10.18488/journal.79/2016.3.1/79.1.1.10

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Article History:

Received: 02 November, 2016
Revised: 30 November, 2016
Accepted: 03 December, 2016
Published: 07 December, 2016


Abstract:

Multi-junction solar cell layers containing CdTe/CdS/ZnO photovoltaic cells were created using SCAP 1D software using parameters based on the previous theoretical characterization to determine the significance effect on the optimization in terms of efficiency on the solar cell.  The simulation of the models were carried out by varying the band gap and thickness of the absorber layer and subsequently formulate model equation using regression analysis to determine the efficiency and fill factor at any given value.  Result shows that increase in the thickness of absorber layer increases fill factor, current density and open voltage from 83.74- 84.77, 26.26 -28.85mA/cm2, 0.71- 0.73, 15.51 -17.82% that ultimately resulted in a high efficiency of solar cell while increase in band-gap of the absorber layer reduces efficiency of the solar cell. Model equation gives errors ranges between 0.026 – 0.4 for thickness and efficiency, 0.0068 – 0.078 for thickness and fill factor and 0.003 – 0.2 for band gap and efficiency. The study shows that large thickness of absorber layer and low band gap favor the optimization and model equations can be used to estimate/forecast the efficiency and fill factor within the limit of the variable parameters and this offers better direction for laboratory experiment.
Contribution/ Originality
This study contributes in the existing literature that energy is an uncompromised essential ingredient for socio-economic development and economic growth. We have created multi-junction solar cell layers containing CdTe/Cds/ZnO photovoltaic cells using the common SCAP ID software with varying parameters for characterization. Simulations were achieved by varying band gap and thickness of the absorber layer and thereby formulating developing model equations. Model equations were obtained using regression analysis. Yielded model equations gave minimal errors that was adequate for the simulations resulting in higher efficiency.

Keywords:

Simulation, Thin film Solar cell, CdTe/CdS/ZnO, Efficiency, SCAPS-1D.

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Reference:

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Funding:

This study received no specific financial support.

Competing Interests:

The authors declare that they have no competing interests.

Acknowledgement:

All authors contributed equally to the conception and design of the study.

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