Morphology and Luminescence of Flexible Free-Standing ZnO/Zn Composite Films Grown by Vapor Transport Synthesis
A method for fabricating flexible free-standing ZnO/Zn composite films from the vapor phase using a regular array of silicon microwhiskers as a substrate is presented. The structural and morphological peculiarities, as well as luminescent properties of the films, were studied. The films have a hybri...
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| Veröffentlicht in: | Materials 2022-11, Vol.15 (22), p.8165 |
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| creator | Zadorozhnaya, Ludmila A Tarasov, Andrey P Volchkov, Ivan S Muslimov, Arsen E Kanevsky, Vladimir M |
| description | A method for fabricating flexible free-standing ZnO/Zn composite films from the vapor phase using a regular array of silicon microwhiskers as a substrate is presented. The structural and morphological peculiarities, as well as luminescent properties of the films, were studied. The films have a hybrid structure consisting of two main microlayers. The first layer is formed directly on the tops of Si whiskers and has a thickness up to 10 µm. This layer features a polycrystalline structure and well-developed surface morphology. The second layer, which makes up the front side of the films, is up to 100 µm thick and consists of large microcrystals. The films show good bending strength-in particular, resistance to repeated bending and twisting-which is provided by a zinc metallic part constituting the flexible carrier of the films. ZnO photoluminescence was observed from both surfaces of the films but with conspicuous spectral differences. In particular, a significant weakening of ZnO green luminescence (more than 10 times) at an almost constant intensity of UV near-band edge emission was found for the polycrystalline side of the films as compared to the microcrystalline side. A high degree of homogeneity of the luminescent properties of the films over their area was demonstrated. The results obtained emphasize the relevance of further studies of such ZnO structures-in particular, for application in flexible devices, sensors, photocatalysis and light generation. |
| doi_str_mv | 10.3390/ma15228165 |
| format | Article |
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The structural and morphological peculiarities, as well as luminescent properties of the films, were studied. The films have a hybrid structure consisting of two main microlayers. The first layer is formed directly on the tops of Si whiskers and has a thickness up to 10 µm. This layer features a polycrystalline structure and well-developed surface morphology. The second layer, which makes up the front side of the films, is up to 100 µm thick and consists of large microcrystals. The films show good bending strength-in particular, resistance to repeated bending and twisting-which is provided by a zinc metallic part constituting the flexible carrier of the films. ZnO photoluminescence was observed from both surfaces of the films but with conspicuous spectral differences. In particular, a significant weakening of ZnO green luminescence (more than 10 times) at an almost constant intensity of UV near-band edge emission was found for the polycrystalline side of the films as compared to the microcrystalline side. A high degree of homogeneity of the luminescent properties of the films over their area was demonstrated. The results obtained emphasize the relevance of further studies of such ZnO structures-in particular, for application in flexible devices, sensors, photocatalysis and light generation.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma15228165</identifier><identifier>PMID: 36431649</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Bend strength ; Homogeneity ; Hybrid structures ; Lasers ; Luminescence ; Microcrystals ; Molecular beam epitaxy ; Morphology ; Optical properties ; Photoluminescence ; Polycrystals ; Radiation ; Scanning electron microscopy ; Silicon ; Silicon substrates ; Silicon wafers ; Tensile strength ; Vapor phases ; Zinc ; Zinc oxide</subject><ispartof>Materials, 2022-11, Vol.15 (22), p.8165</ispartof><rights>COPYRIGHT 2022 MDPI AG</rights><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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The structural and morphological peculiarities, as well as luminescent properties of the films, were studied. The films have a hybrid structure consisting of two main microlayers. The first layer is formed directly on the tops of Si whiskers and has a thickness up to 10 µm. This layer features a polycrystalline structure and well-developed surface morphology. The second layer, which makes up the front side of the films, is up to 100 µm thick and consists of large microcrystals. The films show good bending strength-in particular, resistance to repeated bending and twisting-which is provided by a zinc metallic part constituting the flexible carrier of the films. ZnO photoluminescence was observed from both surfaces of the films but with conspicuous spectral differences. In particular, a significant weakening of ZnO green luminescence (more than 10 times) at an almost constant intensity of UV near-band edge emission was found for the polycrystalline side of the films as compared to the microcrystalline side. A high degree of homogeneity of the luminescent properties of the films over their area was demonstrated. The results obtained emphasize the relevance of further studies of such ZnO structures-in particular, for application in flexible devices, sensors, photocatalysis and light generation.</description><subject>Bend strength</subject><subject>Homogeneity</subject><subject>Hybrid structures</subject><subject>Lasers</subject><subject>Luminescence</subject><subject>Microcrystals</subject><subject>Molecular beam epitaxy</subject><subject>Morphology</subject><subject>Optical properties</subject><subject>Photoluminescence</subject><subject>Polycrystals</subject><subject>Radiation</subject><subject>Scanning electron microscopy</subject><subject>Silicon</subject><subject>Silicon substrates</subject><subject>Silicon wafers</subject><subject>Tensile strength</subject><subject>Vapor phases</subject><subject>Zinc</subject><subject>Zinc oxide</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkU1v1DAQhiMEolXphR-ALHFBSGn9nfiCVK3YgrSohxYOvViOM951ldjBTgr77zHaUgr2wSPPM-N5_VbVa4LPGFP4fDREUNoSKZ5Vx0QpWRPF-fMn8VF1mvMdLosx0lL1sjpikjMiuTqu4peYpl0c4naPTOjRZhl9gGwhWEDRofUAP303AFongPp6LowPW3Qbrs5vA1rFcYrZzyXthzGjyxR_BNTt0TczxYRukgm5BDO63od5B9nnV9ULZ4YMpw_nSfV1_fFm9aneXF1-Xl1sasu5mGuQuO9ET4lxXZm7YYZ2LbSO0bZrG4vbVvTOSsU7cLSh2DlqnVPCCtoQJTg7qT4c-k5LN0Jf9MzJDHpKfjRpr6Px-t9M8Du9jfdaSdVwRUuDdw8NUvy-QJ716Mu3DIMJEJesacOxwLIRuKBv_0Pv4pJCkVcoVhwQqpWFOjtQWzOA9sHF8q4tu4fR2xjA-XJ_0XDRcCIZKwXvDwU2xZwTuMfpCda_vdd_vS_wm6d6H9E_TrNfAiCqUQ</recordid><startdate>20221117</startdate><enddate>20221117</enddate><creator>Zadorozhnaya, Ludmila A</creator><creator>Tarasov, Andrey P</creator><creator>Volchkov, Ivan S</creator><creator>Muslimov, Arsen E</creator><creator>Kanevsky, Vladimir M</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-4578-6380</orcidid><orcidid>https://orcid.org/0000-0002-0524-7606</orcidid><orcidid>https://orcid.org/0000-0001-5016-3308</orcidid></search><sort><creationdate>20221117</creationdate><title>Morphology and Luminescence of Flexible Free-Standing ZnO/Zn Composite Films Grown by Vapor Transport Synthesis</title><author>Zadorozhnaya, Ludmila A ; Tarasov, Andrey P ; Volchkov, Ivan S ; Muslimov, Arsen E ; Kanevsky, Vladimir M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-e60db5d21afb00373a2b8e8f328b87c0885dfc694bef2720ff2cff95c52719543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Bend strength</topic><topic>Homogeneity</topic><topic>Hybrid structures</topic><topic>Lasers</topic><topic>Luminescence</topic><topic>Microcrystals</topic><topic>Molecular beam epitaxy</topic><topic>Morphology</topic><topic>Optical properties</topic><topic>Photoluminescence</topic><topic>Polycrystals</topic><topic>Radiation</topic><topic>Scanning electron microscopy</topic><topic>Silicon</topic><topic>Silicon substrates</topic><topic>Silicon wafers</topic><topic>Tensile strength</topic><topic>Vapor phases</topic><topic>Zinc</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zadorozhnaya, Ludmila A</creatorcontrib><creatorcontrib>Tarasov, Andrey P</creatorcontrib><creatorcontrib>Volchkov, Ivan S</creatorcontrib><creatorcontrib>Muslimov, Arsen E</creatorcontrib><creatorcontrib>Kanevsky, Vladimir M</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zadorozhnaya, Ludmila A</au><au>Tarasov, Andrey P</au><au>Volchkov, Ivan S</au><au>Muslimov, Arsen E</au><au>Kanevsky, Vladimir M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphology and Luminescence of Flexible Free-Standing ZnO/Zn Composite Films Grown by Vapor Transport Synthesis</atitle><jtitle>Materials</jtitle><addtitle>Materials (Basel)</addtitle><date>2022-11-17</date><risdate>2022</risdate><volume>15</volume><issue>22</issue><spage>8165</spage><pages>8165-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>A method for fabricating flexible free-standing ZnO/Zn composite films from the vapor phase using a regular array of silicon microwhiskers as a substrate is presented. The structural and morphological peculiarities, as well as luminescent properties of the films, were studied. The films have a hybrid structure consisting of two main microlayers. The first layer is formed directly on the tops of Si whiskers and has a thickness up to 10 µm. This layer features a polycrystalline structure and well-developed surface morphology. The second layer, which makes up the front side of the films, is up to 100 µm thick and consists of large microcrystals. The films show good bending strength-in particular, resistance to repeated bending and twisting-which is provided by a zinc metallic part constituting the flexible carrier of the films. ZnO photoluminescence was observed from both surfaces of the films but with conspicuous spectral differences. In particular, a significant weakening of ZnO green luminescence (more than 10 times) at an almost constant intensity of UV near-band edge emission was found for the polycrystalline side of the films as compared to the microcrystalline side. A high degree of homogeneity of the luminescent properties of the films over their area was demonstrated. The results obtained emphasize the relevance of further studies of such ZnO structures-in particular, for application in flexible devices, sensors, photocatalysis and light generation.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>36431649</pmid><doi>10.3390/ma15228165</doi><orcidid>https://orcid.org/0000-0002-4578-6380</orcidid><orcidid>https://orcid.org/0000-0002-0524-7606</orcidid><orcidid>https://orcid.org/0000-0001-5016-3308</orcidid><oa>free_for_read</oa></addata></record> |
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| source | PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Bend strength Homogeneity Hybrid structures Lasers Luminescence Microcrystals Molecular beam epitaxy Morphology Optical properties Photoluminescence Polycrystals Radiation Scanning electron microscopy Silicon Silicon substrates Silicon wafers Tensile strength Vapor phases Zinc Zinc oxide |
| title | Morphology and Luminescence of Flexible Free-Standing ZnO/Zn Composite Films Grown by Vapor Transport Synthesis |
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