Abstract—The paper presents the results of experiments on the formation of GPS-var structures using hydrofluoric acid (HF) electrolytes in solutions of ethyl (C2H5OH) and isopropyl alcohol (CH3CH(OH)CH3) at various component ratios. It was experimentally shown that the use of electrolytes based on CH3CH(OH)CH3 allows the formation of a GPS-var structure with a nanoporous layer of silicon, while the resulting porous layer does not collapse and is suitable for further use.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
V. V. Starkov and A. N. Red’kin, “Carbon nanofibers encapsulated in macroporous silicon,” Phys. Status Solidi A 204 (5), 1332–1334 (2007).
V. V. Starkov, D. M. Sedlovets, M. A. Knyazev, and A. N. Red’kin, “Composite electrodes for current sources based on graphene-like films in porous silicon,” Prot. Met. Phys. Chem. Surf. 53 (1), 85–87 (2017).
P. Granitzer and K. Rumpf, “Porous silicon-a versatile host material,” Materials 3, 943–998 (2010).
J. Oh, H.-C. Yuan, and H.M. Branz, “An 18.2%-Efficient black-silicon solar cell achieved through control of carrier recombination in nanostructures,” Nat. Nanotechnol. 7, 743–748 (2012).
V. V. Starkov, I. Konli, and Kh. Presting, et al., “Porous silicon foil,” Mikrosist. Tekh., No. 2, 34–38 (2002).
V. I. Emel’yanov, K.I. Eriomin, and V.V. Starkov, “Defect-deformational mechanism of nucleation of ensemble of pores in semiconductors and metals,” Laser Phys. 12 (12), 1432-1436 (2002).
A. Mokrushin, I. Bardyshev, N. Serebryakova, and V. Starkov, “Positron annihilation and infrared spectroscopy studies of porous silicon,” Phys. Status Solidi A 197 (1), 212–216 (2003).
X. Liu, P.R. Coxon, M. Peters, et al., “Environmental science black silicon: fabrication methods, properties and solar energy applications,” Energy Environ. Sci. 7, 3223–3263 (2014).
V. I. Emel’yanov and V. V. Starkov, “Nonlinear dynamics of selforganization of hexagonal ensembles of pores under oxidation and etching of metals and semiconductors,” J. Surf. Invest.: X-Ray, Synchrotron Neutron Tech. 6, 116 (2006).
A. Vyatkin, V. Starkov, V. Tzeitlin, et al., “Random and ordered macropore formation in p-type silicon,” J. Electrochem. Soc. 149 (1), G70–G76 (2002).
Translated by M.K. Katuev
About this article
Cite this article
Gosteva, E.A., Rubtsova, K.I., Silina, M.D. et al. Formation of Gradient-Porous Silicon Structures with Variable Pore Morphology. Mech. Solids 55, 103–107 (2020). https://doi.org/10.3103/S0025654420010094
- gradient-porous variable silicon structures
- mechanical strength
- anodic etching