Photoconductivity in Bilateral Macroporous Silicon
Keywords:bilateral macroporous silicon, photoconductivity, porous, excess charge carriers
The specific photoconductivity and the excess minority carrier concentration in bilateral macroporous silicon depending on the pore depth and the bulk lifetime of minority charge carriers are calculated. The diffuse model is used to calculate the photoconductivity and the excess minority carrier concentration. The mathematical description of the diffusion model contains a general solution to the diffusion equation and a boundary condition written at the boundaries of a monocrystalline substrate and a sample of bilateral macroporous silicon. It is taken into account that light illuminates the monocrystalline substrate through the bottom of the pores. The dependence of the specific photoconductivity of bilateral macroporous silicon on the pore depth and the bulk lifetime of minority charge carriers decrease, if the pore depth increases, and if the bulk lifetime decreases. The dependence of the excess minority carrier concentration on the coordinate and bulk lifetime of minority charge carriers in bilateral macroporous silicon has one maximum in the case of uniform generation of excess charge carriers or two maxima in the case of inhomogeneous generation of excess charge carriers.
M. Treideris, V. Bukauskas, A. Reza, I. Simkiene, A. Setkus, A. Maneikis, V. Strazdiene. Macroporous silicon structures for light harvesting. Mater. Sci. E 21, 3 (2015).
G. Loget, A. Vacher, B. Fabre, F. Gouttefangeas, L. Joanny, V. Dorcet. Enhancing light trapping of macroporous silicon by alkaline etching: application for the fabrication of black Si nanospike arrays. Materials Chemistry Frontiers 9, 1881 (2017).
M. Ernst, H. Schulte-Huxel, R. Niepelt, S. Kajari-Schroder, R. Brendel. Thin crystalline macroporous silicon solar cells with ion implanted emitter. Energy Procedia 38 910 (2013).
N. Mendoza-Aguero, V. Agarwal, H.I. Villafan-Vidales, J. Campos-Alvarez, P.J. Sebastian. A heterojunction based on macroporous silicon and zinc oxide for solar cell application. J. New Mater. for Electrochem. Systems. 18 (4), 225 (2015).
A.V. Sachenko, V.P. Kostylyov, R.M. Korkishko, V.M. Vlasyuk, I.O. Sokolovskyi, B.F. Dvernikov, V.V. Chernenko, M. Evstigneev. Key parameters of textured silicon solar cells of 26.6 photoconversion efficiency. Semicond. Phys. Quantum Electron. Optoelectron. 24 (2), 175 (2021).
L.A. Karachevtseva, V.F. Onyshchenko, A.V. Sachenko. Kinetics of Photoconductivity in Macroporous Silicon Structures. Ukr. J. Phys. 53 (9), 874 (2008).
M. Ernst, R. Brendel. Modeling effective carrier lifetimes of passivated macroporous silicon layers. Solar Energy Materials and Solar Cells 95 (4), 1197 (2020).
V.F. Onyshchenko, L.A. Karachevtseva. Effective minority carrier lifetime in double-sided macroporous silicon. Semicond. Phys. Quantum Electron. Optoelectron. 23 (1), 29 (2020).
V.F. Onyshchenko. Distribution of excess charge carriers in bilateral macroporous silicon with different thicknesses of porous layers. J. Nano-Electron. Phys. 13 (6), 06010 (2021).
L.S. Monastyrskii, B.S. Sokolovskii, M.R. Pavlyk. Analytical and numerical calculations of photoconductivity in porous silicon. Ukr. J. Phys. 56 (9), 902 (2011).
How to Cite
License to Publish the Paper
The corresponding author and the co-authors (hereon referred to as the Author(s)) of the paper being submitted to the Ukrainian Journal of Physics (hereon referred to as the Paper) from one side and the Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, represented by its Director (hereon referred to as the Publisher) from the other side have come to the following Agreement:
1. Subject of the Agreement.
The Author(s) grant(s) the Publisher the free non-exclusive right to use the Paper (of scientific, technical, or any other content) according to the terms and conditions defined by this Agreement.
2. The ways of using the Paper.
2.1. The Author(s) grant(s) the Publisher the right to use the Paper as follows.
2.1.1. To publish the Paper in the Ukrainian Journal of Physics (hereon referred to as the Journal) in original language and translated into English (the copy of the Paper approved by the Author(s) and the Publisher and accepted for publication is a constitutive part of this License Agreement).
2.1.2. To edit, adapt, and correct the Paper by approval of the Author(s).
2.1.3. To translate the Paper in the case when the Paper is written in a language different from that adopted in the Journal.
2.2. If the Author(s) has(ve) an intent to use the Paper in any other way, e.g., to publish the translated version of the Paper (except for the case defined by Section 2.1.3 of this Agreement), to post the full Paper or any its part on the web, to publish the Paper in any other editions, to include the Paper or any its part in other collections, anthologies, encyclopaedias, etc., the Author(s) should get a written permission from the Publisher.
3. License territory.
The Author(s) grant(s) the Publisher the right to use the Paper as regulated by sections 2.1.1–2.1.3 of this Agreement on the territory of Ukraine and to distribute the Paper as indispensable part of the Journal on the territory of Ukraine and other countries by means of subscription, sales, and free transfer to a third party.
4.1. This Agreement is valid starting from the date of signature and acts for the entire period of the existence of the Journal.
5.1. The Author(s) warrant(s) the Publisher that:
– he/she is the true author (co-author) of the Paper;
– copyright on the Paper was not transferred to any other party;
– the Paper has never been published before and will not be published in any other media before it is published by the Publisher (see also section 2.2);
– the Author(s) do(es) not violate any intellectual property right of other parties. If the Paper includes some materials of other parties, except for citations whose length is regulated by the scientific, informational, or critical character of the Paper, the use of such materials is in compliance with the regulations of the international law and the law of Ukraine.
6. Requisites and signatures of the Parties.
Publisher: Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine.
Address: Ukraine, Kyiv, Metrolohichna Str. 14-b.
Author: Electronic signature on behalf and with endorsement of all co-authors.