Introducing a Phenomenon of Single Junction Multiple Band-gap Solar Cell Compared to Single Junction or Multi Junction Solar Cell to Achieve High Efficiency

  • Nahid Akter Noakhali Science & Technology University
  • M. Moshiur Rahman Jahangirnagar University
  • Shirin Akter Bangladesh Atomic Energy Commission
Keywords: Band-gap, lattice, HMAs, BAC, electro-negativity

Abstract

Besides cost, the most fundamental issue in assessing photovoltaic solar cells is efficiency. The benefits of single-junction solar cells are easier to manufacture, simpler and less expensive to make. However, they are less efficient than multi-junction solar cells. But when different semiconductors are stacked in layers to create multiple junctions, the atoms in the lower layers must not be blocked by the atoms in the upper layers or the sunlight passes by them instead of striking them. That means higher efficiency multi-junction solar cells are difficult to make. From the periodic table, group III-V and group II-VI produce the alloys of direct band-gap semiconductor. If group V anions are partially replaced with nitrogen atom or group VI element is partially replaced with oxygen atom then new semiconductor material is produced that respond to a wider spectrum of frequencies within sunlight. It will make single-junction multiple band-gap solar cell which is more efficient and less expensive to manufacture.

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Author Biographies

Nahid Akter, Noakhali Science & Technology University

Dept. of Computer Science & Telecommunication Engineering, Noakhali Science & Technology University, BANGLADESH

M. Moshiur Rahman, Jahangirnagar University

Department of Physics, Jahangirnagar University, BANGLADESH

Shirin Akter, Bangladesh Atomic Energy Commission

Accelerator Facilities Division, Bangladesh Atomic Energy Commission, BANGLADESH

References

F. Meillaud, A. Shah, C. Droz, E. Vallat-Sauvain, C. Miazza, “Efficiency limits for single junction & tendem solar cells”, Solar Energy Materials and Solar Cells 90, issues 18-19, 2952-2959, 2006.

Kin Man Yu, Wladek Walukiewicz, Wei Shan, and Jeff Beeman; "Diluted II-VI oxide semiconductors with multiple band gaps, Physical Review Letters, 12 December 2003.

Paul Preuss, Berkley Lab Science Beat: A Step Closer to the Optimum Solar Cell;; March 2004.

W. Shan,W.Walukiewicz, J.W. Ager III, E. E. Haller, J. F. Geisz, D. J. Friedman, J.M. Olson, and S. R. Kurtz, Phys. Rev. Lett. 82, 1221(1999).

W. Walukiewicz, “New material for high efficiency solar cells”, ALS Workshop, 10/5/2007,.

Websites:

http://emat-solar.lbl.gov/research/band-anti-crossing-model

http://emat-solar.lbl.gov/research/dilute-nitrides

http://emat-solar.lbl.gov/research/dilute-oxides

http://emat-solar.lbl.gov/research/pulsed-laser-melting-plm

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Published
2013-06-19
How to Cite
Akter, N., Rahman, M. M. and Akter, S. (2013) “Introducing a Phenomenon of Single Junction Multiple Band-gap Solar Cell Compared to Single Junction or Multi Junction Solar Cell to Achieve High Efficiency”, ABC Journal of Advanced Research, 2(1), pp. 30-35. Available at: https://i-proclaim.my/journals/index.php/abcjar/article/view/67 (Accessed: 22July2019).
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