Zahidur R. Chowdhury

• BACH PV solar cells

• Text. Facile native oxide-based passivation of crystalline silicon surfaces was integrated within the Back Amorphous-Crystalline silicon Heterojunction (BACH) solar cell concept. The new passivation scheme consists of 1-nm thick native oxide and nomin ... Read More
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• LIT PV solar cells

• A novel cell concept is proposed that uses the recently reported high quality facile native oxide based passivation scheme for crystalline silicon surfaces. The Lateral Inherently Thin (LIT) cell concept mitigates parasitic optical absorption losses ... Read More

• Crystalline silicon surface passivation

• High quality surface passivation of crystalline silicon has been attained using facile native oxide and plasma enhanced chemical vapour deposition SiN_x. Using systematic measurements of excess carrier density dependent minority carrier lifetime, it is o ... Read More
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• RIE textured black silicon

• A novel texturization process has been developed to produce black silicon (silicon surface with very low reflectivity). Inverted pyramid textured surface and very rough surface can be produced by controlling the plasma process parameter. Reflectivity le ... Read More
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• Silicon texturization with low surface damage

• Low surface defect density of the textured crystalline silicon has been attained with appropriate wet chemical processing. The passivation quality was poor after the texturiation steps resulting less than 10 μs minority carrier lifetime with hydro ... Read More
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• Ultra-thin silicon PV solar cells

• The light trapping mechanisms to mitigate reduction in absorption and improved passivation for the 10 μm thick silicon wafers were investigated in this study. A novel method to fabricate a high efficiency solar cell on a 10 μm thick silicon membrane ... Read More
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• All project-groups

Photovoltaics / Simulation study / Micro-nano fabrication