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Efficiency Comparison of MWT and EWT all Backcontact Nanowire Silicon Solar Cells

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Microelectronics, Electromagnetics and Telecommunications

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 372))

Abstract

Nanowire Solar cells (NW SCs) have shown hopeful advance for light absorption and charge carrier transport because in a vertical structure absorption and carrier transport are orthogonal to each other. In this work high-efficiency back-contact back-junction (BC-BJ) structures like emitter wrap through and metallization wrap through Silicon (Si) SCs for one-sun applications were studied. The top portion of the device gets fully illuminated and there is no loss incorporated due to the absence of front metallization. Key parameters were extracted of proposed structure and a vertical NW SC structure with a front contact using 3D-TCAD simulation tool. First of all a comparison in the performance is observed between a planar solar cell (PSC) and a NW SC, then two different types of all back contact (ABC) structures are studied. The entire work is simulated using AM1.5G solar spectrum at room temperature. The key solar parameters like open circuit voltage (VOC), short circuit current (ISC), fill factor (FF), short circuit current density (JSC) and conversion efficiency are calculated. The efficiency of the proposed structure is more comparable to a regular NW structure which is considered with similar device characteristics.

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Acknowledgments

The authors wish to thank Dr. Chayanika Bose, Associate Professor, Jadavpur University, for providing the Synopsys TCAD software for simulation of above mention devices. This software was funded by UGC.

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Authors and Affiliations

  1. Department of EIE, NIST, Berhampur, Odisha, India

    Rakesh K. Patnaik & Ritwika Choudhuri

  2. Department of ECE, GITAM University, Vishkapatnam, Andhra Pradesh, India

    Devi Prasad Pattnaik

Authors
  1. Rakesh K. Patnaik
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  2. Devi Prasad Pattnaik
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  3. Ritwika Choudhuri
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Corresponding author

Correspondence to Rakesh K. Patnaik .

Editor information

Editors and Affiliations

  1. Dept of Computer Science Engineering, Anil Neerukonda Institute of Techn. and Sciences, Vishakapatnam, India

    Suresh Chandra Satapathy

  2. Electronics & Communication Engineering, National Institute of Technology Electronics & Communication Engineering, Warangal, India

    N Bheema Rao

  3. Electronics & Communication Engineering, Jawaharlal Nehru Technological Univ, Kakinada, Andhra Pradesh, India

    S Srinivas Kumar

  4. Electronics & Communication Engineering, GITAM University Electronics & Communication Engineering, Visakhapatnam, Andhra Pradesh, India

    C Dharma Raj

  5. Electronics & Communication Engineering, GITAM University Electronics & Communication Engineering, Visakhapatnam, Andhra Pradesh, India

    V Malleswara Rao

  6. Electronics & Communication Engineering, GITAM University Electronics & Communication Engineering, Visakhapatnam, India

    G V K Sarma

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Patnaik, R.K., Pattnaik, D.P., Choudhuri, R. (2016). Efficiency Comparison of MWT and EWT all Backcontact Nanowire Silicon Solar Cells. In: Satapathy, S., Rao, N., Kumar, S., Raj, C., Rao, V., Sarma, G. (eds) Microelectronics, Electromagnetics and Telecommunications. Lecture Notes in Electrical Engineering, vol 372. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2728-1_37

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  • DOI: https://doi.org/10.1007/978-81-322-2728-1_37

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  • Publisher Name: Springer, New Delhi

  • Print ISBN: 978-81-322-2726-7

  • Online ISBN: 978-81-322-2728-1

  • eBook Packages: EngineeringEngineering (R0)

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