Document Type : Original Research Paper


Department of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran


A solar cell is an electronic device which not only harvests photovoltaic effect but also transforms light energy into electricity. In photovoltaic phenomenon, a P-N junction is created to form an empty region.  The presented paper aims at proposing a new highly efficient InGaN/Si double-junction solar cell structure. This cell is designed to be used in a real environmental situation, so only structural parameters are optimized. In the present structure, a thin layer of Cd-S is used as the anti-reflector window layer. The cell is simulated using ATLAS-SILVACO software and its maximum efficiency is computed to be 37.23%. Considering the supposed structure, the findings show that the efficiency of this solar cell, which is 37.32%, is so far the highest reported efficiency amongst all solar cells.

Graphical Abstract

Design and Simulation of a Highly Efficient InGaN/Si Double-Junction Solar Cell


[1]      A. Becquerel, “Mémoire sur les effets électriques produits sous linfluence des rayons solaires,” Comptes Rendus, vol. 9, pp. 561-567, 1839.
[2]      W. G. Adams and R. Day, “The action of light on selenium,” Phil. Trans. Soc. London, vol. 167, pp. 313-349, 1877.
[3]      D. Chapin, C. Fuller, and G. Pearson, “A new silicon p–n junction photocell for converting solar radiation into electrical power,” J. Appl. Phys., vol. 25, no. 5, pp. 676–677, 1954.
[4]      A. Bett, F. Dimroth, G. Stollwerck, and O. Sulima, “III-V compounds for solar cell applications,” Appl. Phys. A, vol. 69, no. 2, pp. 119–29, 1999.
[5]      R. Moon, L. James, H. Vander Plas, T. Yep, G. Antypas, and Y. Chai, “Multi-gap solar cell requirements and the performance of algaas and si cells in concentrated sun light, in Proc. 13th Photovoltaic specialists conference, vol. 1, pp. 859–867, Washington, USA, 1978.
[6]      A. Datas and C. Algora “Global optimization of solar thermophotovoltaic systems,” Progress in Photovoltaics, vol. 21, pp. 1040–1055, 2012.
[7]      A. Kongkanand, K.  Tvrdy, K. Takechi, M. Kuno, and P. V.  Kamat, “Quantum dot solar cells tuning photoresponse through size and shape control of cdse-tio2 architecture,” J. Am. Chem. Soc, vol. 130, no. 12, pp. 4007–4015, 2008.
[8]      A. Le Bris and J. F. Guillemoles, “Hot carrier solar cells: achievable efficiency accounting for heat losses in the absorber and through contacts,” Appl. Phys. Lett., vol. 97, no. 11, p. 113506, 2010.
[9]      F. Alharbi and S. Kais, “Theoretical limits of photovoltaics efficiency and possible improvements by intuitive approaches learned from photosynthesis and quantum coherence,” Renewable and Sustainable Energy Reviews, vol. 43, pp. 1073–1089, 2015.
[10]   L. Hsu and W. Walukiewicz, “Modeling of InGaN/Si tandem solar cells,” J. Appl. Phys., vol. 104, no. 2, pp. 1-7, 2008.
[11]   Z. Li, H. Xiao, X. Wang, C. Wang, Q. Deng, L. Jing, J. Ding, and X. Hou, “Theoretical simulations of InGaN/Si mechanically stacked two-junction solar cell,” Phys. B Condensed Matter, vol. 414, pp. 110-114, 2013.
[12]   S. W. Feng1, C. M. Lai , C. Y. Tsai, and L. Wei Tu, “Numerical simulation of the current-matching effect and operation mechanisms on the performance of InGaN/Si tandem cells,” Nanoscale Res. Lett., vol. 9, no. 652, pp. 1-10, 2014.
[13]   H. Hamzaoui, A. S. Bouazzi, and B. Rezig, “Theoretical possibilities of InxGa1-xN tandem PV structures,” Solar Energy Materials and Solar Cells, vol. 87, no. 1–4, pp. 595–603, 2005
[14]   S. Nacer and A. Aissat, “Simulation and optimization of current matching multi-junction InGaN solar cells,” Opt. Quantum Electron,vol. 47, no. 12, pp. 3863–3870, 2015.
[15]   X. Zhang, X. Wang, H. Xiao, C. Yang, J. Ran, C. Wang, Q. Hou, J. Li, and Z. Wang, “Theoretical design and performance of Inx- Ga1-xN two-junction solar cells,” J. Phys. D. Appl. Phys. vol. 41, no. 24, pp. 1-6, 2008.


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