InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties

Nearly similar molar ratio of in and Ga in indium gallium nitride (InGaN) /Si photocells prefers to match InGaN conduction level energy to Si valance energy band for ohmic contact between two cells. At high temperature fabrication process, InGaN–Si interface shows highly defecting prone. Considering...

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Main Authors: Bablu K. Ghosh, Saiful S. M. Zainal, Khairul Anuar Mohamad, Ismail Saad
Format: Article
Language:English
Published: John Wiley & Sons Ltd 2016
Subjects:
Online Access:https://eprints.ums.edu.my/id/eprint/18606/1/InGaN%20photocell.pdf
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author Bablu K. Ghosh
Saiful S. M. Zainal
Khairul Anuar Mohamad
Ismail Saad
author_facet Bablu K. Ghosh
Saiful S. M. Zainal
Khairul Anuar Mohamad
Ismail Saad
author_sort Bablu K. Ghosh
collection UMS
description Nearly similar molar ratio of in and Ga in indium gallium nitride (InGaN) /Si photocells prefers to match InGaN conduction level energy to Si valance energy band for ohmic contact between two cells. At high temperature fabrication process, InGaN–Si interface shows highly defecting prone. Considering those tussles, InGaN-based/Si-based double-junction tandem solar cell was designed and fabricated. In₀.₄Ga₀.₆ N cell was fabricated on Si photocell by implementing AlN/SiO₂/Si₃N4 interlayers. Interlayer influence on quantum efficiency of InGaN cell was studied under ideal irradiance AM1.5 solar spectrum at 300°K. Because of insertion of interlayers between InGaN and Si; the gradual efficiency enhancement with respect to the overlayer h-GaN (a = 3.183 nm) plane lattice was found to 8.3%, 5.9% and 5.1% for AlN (a = 3.11 nm), for SiO₂ (a = 4.9 nm) and for Si₃N4 (a = 7.76 nm), respectively. AlN was found to be an excellent and SiO₂ as preferable interlayer compared with Si₃N4. Coherence (in-plane lattice matching) of nano-interlayer appears to reduce photonic electro-migration hurdle between InGaN and Si; therefore, progressive enrichment of efficiency was realized.
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spelling ums.eprints-186062018-02-03T13:52:48Z https://eprints.ums.edu.my/id/eprint/18606/ InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties Bablu K. Ghosh Saiful S. M. Zainal Khairul Anuar Mohamad Ismail Saad TK Electrical engineering. Electronics Nuclear engineering Nearly similar molar ratio of in and Ga in indium gallium nitride (InGaN) /Si photocells prefers to match InGaN conduction level energy to Si valance energy band for ohmic contact between two cells. At high temperature fabrication process, InGaN–Si interface shows highly defecting prone. Considering those tussles, InGaN-based/Si-based double-junction tandem solar cell was designed and fabricated. In₀.₄Ga₀.₆ N cell was fabricated on Si photocell by implementing AlN/SiO₂/Si₃N4 interlayers. Interlayer influence on quantum efficiency of InGaN cell was studied under ideal irradiance AM1.5 solar spectrum at 300°K. Because of insertion of interlayers between InGaN and Si; the gradual efficiency enhancement with respect to the overlayer h-GaN (a = 3.183 nm) plane lattice was found to 8.3%, 5.9% and 5.1% for AlN (a = 3.11 nm), for SiO₂ (a = 4.9 nm) and for Si₃N4 (a = 7.76 nm), respectively. AlN was found to be an excellent and SiO₂ as preferable interlayer compared with Si₃N4. Coherence (in-plane lattice matching) of nano-interlayer appears to reduce photonic electro-migration hurdle between InGaN and Si; therefore, progressive enrichment of efficiency was realized. John Wiley & Sons Ltd 2016 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/18606/1/InGaN%20photocell.pdf Bablu K. Ghosh and Saiful S. M. Zainal and Khairul Anuar Mohamad and Ismail Saad (2016) InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties. International Journal of Energy Research, 40 (9). pp. 1271-1279. ISSN 1099-114X http://doi.org/10.1002/er.3520
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Bablu K. Ghosh
Saiful S. M. Zainal
Khairul Anuar Mohamad
Ismail Saad
InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties
title InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties
title_full InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties
title_fullStr InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties
title_full_unstemmed InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties
title_short InGaN photocell significant efficiency enhancement on Si – an influence of interlayer physical properties
title_sort ingan photocell significant efficiency enhancement on si an influence of interlayer physical properties
topic TK Electrical engineering. Electronics Nuclear engineering
url https://eprints.ums.edu.my/id/eprint/18606/1/InGaN%20photocell.pdf
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