Multi-crystalline silicon solar cells with metal-assisted nano-texturing using HNO3 as hole injection agent

Date

2016-12-01

Author

Es, Fırat
Baytemir, Gulsen
Kulakci, Mustafa
Turan, Raşit

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

195
views

0
downloads

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 SiO2/PECVD-SiNx stack passivation and screen printed metallization. Firing process has been optimized in order to obtain the best contact formation. Finally, j(sc) enhancement of 0.9 mA/cm(2) and 0.6% absolute increase in the efficiency have been achieved. This proves that the optimized MAE texture process can be successfully used in multi-crystalline wafer texturing with standard passivation methods. J-V curves and SEM images of the nano and iso-textured samples. j(sc) enhancement of 0.9 mA/cm(2) together with 0.6% absolute efficiency gain was observed on nano-textured samples. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Subject Keywords

Metal-assisted etching, Textures, Black silicons, Solar cells, Photovoltaics, Multicrystalline materials, Foraminifera, Foraminifera, Radiolarians, Conodont, Carboniferous, The Mersin Melange, Tethyan evolution

URI

https://hdl.handle.net/11511/37137

Journal

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS

DOI

https://doi.org/10.1002/pssr.201600245

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Metal-assisted nano-textured solar cells with SiO2/Si3N4 passivation Es, Fırat; Baytemir, Gulsen; Kulakci, Mustafa; Turan, Raşit (2017-02-01) 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 fir...
Shape memory polymer composites containing carbon based fillers Şengör, İrem; Bayram, Göknur; Köysüren, Özcan; Department of Chemical Engineering (2013) The aim of this dissertation was to produce shape memory polymer nanocomposites using diglycidyl ether of bisphenol A (DGEBA) epoxy resin and isophorone diamine based cyclo-aliphatic curing agent. The polymer matrix was modified with aliphatic and aromatic monomers namely, neopentyl glycol diglycidyl ether (NGDE) and resorcinol diglycidyl ether (RDE). In the formation of composites, carbon black and carbon nanotubes were used separately and also together as hybrid filler. All samples were subjected to mecha...
Nanoclay and carbon nanotubes as potential synergists of an organophosphorus flame-retardant in poly(methyl methacrylate) Isitman, Nihat Ali; Kaynak, Cevdet (2010-09-01) This study explores whether nanoparticles incorporated in polymers always act as synergists of conventional flame-retardant additives. For this purpose, two different filler nanoparticles, namely organically modified layered-silicate clay minerals or nanoclays and multi-walled carbon nanotubes, were incorporated in poly(methyl methacrylate) filled with an organophosphorus flame-retardant that acts through intumescence. Effective dispersion techniques specific to each nanoparticle were utilized and prepared ...
Single-component layer-by-layer weak polyelectrolyte films and capsules: Loading and release of functional molecules Kozlovskaya, V. A.; Kharlampieva, E. P.; Erel Göktepe, İrem; Sukhishvili, S. A. (2009-06-01) Poly(carboxylic acid) hydrogel films and hollow capsules undergo reversible size changes in response to variations in pH and/or ionic strength. The films and capsules were obtained from hydrogenbonded poly-N-vinylpyrrolidone/poly(carboxylic acid) layer-by-layer films by chemical crosslinking of the polyacid, followed by pH-induced removal of poly-N-vinylpyrrolidone. Surface-attached hydrogel films present attractive matrices for reversible pH-stimulated loading and/or controlled release of large amounts of ...
Impact modified epoxy/montmorillonite nanocomposites: synthesis and characterization Isik, I; Yılmazer, Ülkü; Bayram, Göknur (2003-09-01) Diglycidyl ether of bisphenol A type epoxy resin-polyether polyol-organically treated montmorillonite ternary nanocomposites were synthesized in this study. The effects of addition of polyether polyol as an impact modifier on morphological, thermal and mechanical properties of nanocomposites were investigated by X-ray diffraction, scanning electron microscopy (SENI), differential scanning calorimetry, impact and tensile testing. The results showed that organically treated montmorillonite is intercalated by ...

Citation Formats

F. Es, G. Baytemir, M. Kulakci, and R. Turan, “Multi-crystalline silicon solar cells with metal-assisted nano-texturing using HNO3 as hole injection agent,” PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, pp. 866–869, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37137.