Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization
The features of pore formation during photoanodization in electrolytes based on ammonium fluoride are studied depending on illumination, pH, current density. When comparing electrolytes with different pH (acidic and alkaline), a decrease in the pore diameter is observed at the same illumination...
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| Format: | Article |
| Language: | English |
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Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2020-11-01
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| Series: | Омский научный вестник |
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| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/5%20(173)/79-83%20%D0%91%D0%BE%D0%BB%D0%BE%D1%82%D0%BE%D0%B2%20%D0%92.%20%D0%92.,%20%D0%9F%D0%BE%D0%BD%D0%BE%D0%BC%D0%B0%D1%80%D0%B5%D0%B2%D0%B0%20%D0%98.%20%D0%92.,%20%D0%98%D0%B2%D0%BB%D0%B5%D0%B2%20%D0%9A.%20%D0%95..pdf |
| _version_ | 1826841258502389760 |
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| author | V. V. Bolotov I. V. Ponomareva K. E. Ivlev |
| author_facet | V. V. Bolotov I. V. Ponomareva K. E. Ivlev |
| author_sort | V. V. Bolotov |
| collection | DOAJ |
| description | The features of pore formation during photoanodization in
electrolytes based on ammonium fluoride are studied depending
on illumination, pH, current density. When comparing electrolytes
with different pH (acidic and alkaline), a decrease in the pore
diameter is observed at the same illumination and current densities
in alkaline HF: NH4
OH solutions at a relatively equal etching rate
in depth. In dilute HF: NH4
OH: H2
O under low illumination, there
is a direct dissolution of silicon with the formation of a «starlike» pore morphology and a branching tendency. In the case of
a concentrated solution of HF: NH4
OH 1: 4 branching is observed
with increasing current density. |
| first_indexed | 2024-12-10T17:11:48Z |
| format | Article |
| id | doaj.art-dc16323aba064d12a2d377f2d0a505c2 |
| institution | Directory Open Access Journal |
| issn | 1813-8225 2541-7541 |
| language | English |
| last_indexed | 2025-02-16T12:57:05Z |
| publishDate | 2020-11-01 |
| publisher | Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education |
| record_format | Article |
| series | Омский научный вестник |
| spelling | doaj.art-dc16323aba064d12a2d377f2d0a505c22025-02-02T18:29:02ZengOmsk State Technical University, Federal State Autonoumos Educational Institution of Higher EducationОмский научный вестник1813-82252541-75412020-11-015 (173)798310.25206/1813-8225-2020-173-79-83Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodizationV. V. Bolotov0I. V. Ponomareva1K. E. Ivlev2Omsk Scientific Center of Siberian Branch of Russian Academy of SciencesOmsk Scientific Center of Siberian Branch of Russian Academy of SciencesOmsk Scientific Center of Siberian Branch of Russian Academy of SciencesThe features of pore formation during photoanodization in electrolytes based on ammonium fluoride are studied depending on illumination, pH, current density. When comparing electrolytes with different pH (acidic and alkaline), a decrease in the pore diameter is observed at the same illumination and current densities in alkaline HF: NH4 OH solutions at a relatively equal etching rate in depth. In dilute HF: NH4 OH: H2 O under low illumination, there is a direct dissolution of silicon with the formation of a «starlike» pore morphology and a branching tendency. In the case of a concentrated solution of HF: NH4 OH 1: 4 branching is observed with increasing current density.https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/5%20(173)/79-83%20%D0%91%D0%BE%D0%BB%D0%BE%D1%82%D0%BE%D0%B2%20%D0%92.%20%D0%92.,%20%D0%9F%D0%BE%D0%BD%D0%BE%D0%BC%D0%B0%D1%80%D0%B5%D0%B2%D0%B0%20%D0%98.%20%D0%92.,%20%D0%98%D0%B2%D0%BB%D0%B5%D0%B2%20%D0%9A.%20%D0%95..pdfmacroporous siliconphotoanodizationelectron microscopy |
| spellingShingle | V. V. Bolotov I. V. Ponomareva K. E. Ivlev Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization Омский научный вестник macroporous silicon photoanodization electron microscopy |
| title | Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization |
| title_full | Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization |
| title_fullStr | Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization |
| title_full_unstemmed | Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization |
| title_short | Morphology of macropores in n-Si formed in NH4 F-containing solutions during photoanodization |
| title_sort | morphology of macropores in n si formed in nh4 f containing solutions during photoanodization |
| topic | macroporous silicon photoanodization electron microscopy |
| url | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/5%20(173)/79-83%20%D0%91%D0%BE%D0%BB%D0%BE%D1%82%D0%BE%D0%B2%20%D0%92.%20%D0%92.,%20%D0%9F%D0%BE%D0%BD%D0%BE%D0%BC%D0%B0%D1%80%D0%B5%D0%B2%D0%B0%20%D0%98.%20%D0%92.,%20%D0%98%D0%B2%D0%BB%D0%B5%D0%B2%20%D0%9A.%20%D0%95..pdf |
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