Details

Autor(en) / Beteiligte

• Hsu, W. Chuck
• Lu, Yen-Sheng
• Chyan, Jung-Yi
• Yeh, J. Andrew
• Yi, Junsin

Titel

High-Efficiency 6＂ Multicrystalline Black Solar Cells Based on Metal-Nanoparticle-Assisted Chemical Etching

Ist Teil von

• International Journal of Photoenergy, 2012-01, Vol.2012, p.1-7

Ort / Verlag

Hindawi Limiteds

Erscheinungsjahr

2012

Link zum Volltext

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• Multicrystalline silicon (mc-Si) photovoltaic (PV) solar cells with nanoscale surface texturing by metal-nanoparticle-assisted etching are proposed to achieve high power efficiency. The investigation of average nanorod lengths from 100 nm to 1 μm reveals that the Si wafer decorated with 100 nm thick nanorods has optical reflection of 9.5% inferior than the one with 1 μm thick nanorods (2%). However, the short nanorods improve the doping uniformity and effectively decrease metal contact resistance. After surface passivation using the hydrogenated SiO2/SiNx (5 nm/50 nm) stack, the minority carrier lifetime substantially increases from 1.8 to 7.2 μs for the 100 nm-thick nanorod solar cell to achieve the high power efficiency of 16.38%, compared with 1 μm thick nanorod solar cell with 11.87%.