Metal-assisted nano-textured solar cells with SiO2/Si3N4 passivation

Es, Fırat
Baytemir, Gulsen
Kulakci, Mustafa
Turan, Raşit
We demonstrate the fabrication of nano-sized surface textured crystalline silicon by a metal-assisted electroless etching method with nitric acid added as the hole injection agent. This method generates randomly shaped cone-like structures that offer a clear advantage over nanowires by enabling straightforward passivation with standard techniques. Average reflection values as low as 3% have been achieved. Optimizing the thickness of anti-reflective coatings, the doping depth and the screen-printed metal firing process increases the short circuit current of the cell by 0.82 mA/cm(2) over the reference cells, which had a pyramidal texture without nano texturing.


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Femtosecond laser-based Nonlinear Laser Lithography (NLL) was applied to AISI 316L stainless steel, which requires surface modification to achieve satisfactory tribological behaviour. NLL advances over the well-known Laser Induced Periodic Surface Structures (LIPSS) in terms of uniformity and long-range order of high speeds, over large areas. A galvanometric scanner head was used for an high production rate. Dry and lubricated sliding tests, considering different orientations of the nanotexture showed that ...
Multi-crystalline silicon solar cells with metal-assisted nano-texturing using HNO3 as hole injection agent
Es, Fırat; Baytemir, Gulsen; Kulakci, Mustafa; Turan, Raşit (2016-12-01)
In this study, metal-assisted etching (MAE) with nitric acid (HNO3) as a hole injecting agent has been employed to texture multi-crystalline silicon wafers. It was previously proven that addition of HNO3 enabled control of surface texturing so as to form nano-cone shaped structures rather than nanowires. The process parameters optimized for optically efficient texturing have been applied to multi-crystalline wafers. Fabrication of p-type Al: BSF cells have been carried out on textured samples with thermal S...
Akbıyık, Alp; Bek, Alpan; Department of Physics (2022-6-10)
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Şengör, İrem; Bayram, Göknur; Köysüren, Özcan; Department of Chemical Engineering (2013)
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Optimized spacer layer thickness for plasmonic-induced enhancement of photocurrent in a-Si:H
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Plasmonic interfaces consisting of silver nanoparticles of different sizes (50-100 nm) have been processed by the self-assembled dewetting technique and integrated to hydrogenated amorphous silicon (a-Si:H) using SiNx spacer layers to investigate the dependence of optical trapping enhancement on spacer layer thickness through the enhancements in photocurrent. Samples illuminated from the a-Si:H side exhibit a localized surface plasmon resonance (LSPR) that is red-shifted with the increasing particle size an...
Citation Formats
F. Es, G. Baytemir, M. Kulakci, and R. Turan, “Metal-assisted nano-textured solar cells with SiO2/Si3N4 passivation,” SOLAR ENERGY MATERIALS AND SOLAR CELLS, pp. 269–274, 2017, Accessed: 00, 2020. [Online]. Available: