Electrical Conduction Properties of Hydrogenated Amorphous Carbon Films with Different Structures
Hydrogenated amorphous carbon (a-C:H) films have optical and electrical properties that vary widely depending on deposition conditions; however, the electrical conduction mechanism, which is dependent on the film structure, has not yet been fully revealed. To understand the relationship between the...
Gespeichert in:
| Veröffentlicht in: | Materials 2021-05, Vol.14 (9), p.2355 |
|---|---|
| Hauptverfasser: | , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | 9 |
| container_start_page | 2355 |
| container_title | Materials |
| container_volume | 14 |
| creator | Tomidokoro, Masashi Tunmee, Sarayut Rittihong, Ukit Euaruksakul, Chanan Supruangnet, Ratchadaporn Nakajima, Hideki Hirata, Yuki Ohtake, Naoto Akasaka, Hiroki |
| description | Hydrogenated amorphous carbon (a-C:H) films have optical and electrical properties that vary widely depending on deposition conditions; however, the electrical conduction mechanism, which is dependent on the film structure, has not yet been fully revealed. To understand the relationship between the film structure and electrical conduction mechanism, three types of a-C:H films were prepared and their film structures and electrical properties were evaluated. The sp2/(sp2 + sp3) ratios were measured by a near-edge X-ray absorption fine structure technique. From the conductivity–temperature relationship, variable-range hopping (VRH) conduction was shown to be the dominant conduction mechanism at low temperatures, and the electrical conduction mechanism changed at a transition temperature from VRH conduction to thermally activated band conduction. On the basis of structural analyses, a model of the microstructure of a-C:H that consists of sp2 and sp3-bonded carbon clusters, hydrogen atoms and dangling bonds was built. Furthermore, it is explained how several electrical conduction parameters are affected by the carrier transportation path among the clusters. |
| doi_str_mv | 10.3390/ma14092355 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_8124840</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2530157030</sourcerecordid><originalsourceid>FETCH-LOGICAL-c383t-6d372c100b464fcd140545effba3b6f5f6f1d58c39a5756abcbe9b4164d0d4633</originalsourceid><addsrcrecordid>eNpdkVtLAzEQhYMoKtUXf0HAFxGqyebSzYsgtVpBUFCfQzaXNrK7qUlW6b83RfE2LzMwh2_OYQA4wuiMEIHOO4UpEhVhbAvsYyH4GAtKt3_Ne-AwpRdUihBcV2IX7BGKeDVhdB-oWWt1jl6rFk5DbwadfejhQwwrG7O3CQYH52sTw8L2KlsDL7sQV8swJDhVsSnaa992Cb77vIRX3jkbbZ_hY44FNUSbDsCOU22yh199BJ6vZ0_T-fju_uZ2enk31qQmecwNmVQaI9RQTp02JRWjzDrXKNJwxxx32LBaE6HYhHHV6MaKhmJODTKUEzICF5_c1dB01ujiIqpWrqLvVFzLoLz8u-n9Ui7Cm6xxRWuKCuDkCxDD62BTlp1P2rat6m2JKytGeDkk8ObW8T_pSxhiX-JtVAizCSIb4OmnSseQUrTu2wxGcvM8-fM88gGbSYxP</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2530157030</pqid></control><display><type>article</type><title>Electrical Conduction Properties of Hydrogenated Amorphous Carbon Films with Different Structures</title><source>PubMed Central Open Access</source><source>MDPI - Multidisciplinary Digital Publishing Institute</source><source>EZB-FREE-00999 freely available EZB journals</source><source>PubMed Central</source><source>Free Full-Text Journals in Chemistry</source><creator>Tomidokoro, Masashi ; Tunmee, Sarayut ; Rittihong, Ukit ; Euaruksakul, Chanan ; Supruangnet, Ratchadaporn ; Nakajima, Hideki ; Hirata, Yuki ; Ohtake, Naoto ; Akasaka, Hiroki</creator><creatorcontrib>Tomidokoro, Masashi ; Tunmee, Sarayut ; Rittihong, Ukit ; Euaruksakul, Chanan ; Supruangnet, Ratchadaporn ; Nakajima, Hideki ; Hirata, Yuki ; Ohtake, Naoto ; Akasaka, Hiroki</creatorcontrib><description>Hydrogenated amorphous carbon (a-C:H) films have optical and electrical properties that vary widely depending on deposition conditions; however, the electrical conduction mechanism, which is dependent on the film structure, has not yet been fully revealed. To understand the relationship between the film structure and electrical conduction mechanism, three types of a-C:H films were prepared and their film structures and electrical properties were evaluated. The sp2/(sp2 + sp3) ratios were measured by a near-edge X-ray absorption fine structure technique. From the conductivity–temperature relationship, variable-range hopping (VRH) conduction was shown to be the dominant conduction mechanism at low temperatures, and the electrical conduction mechanism changed at a transition temperature from VRH conduction to thermally activated band conduction. On the basis of structural analyses, a model of the microstructure of a-C:H that consists of sp2 and sp3-bonded carbon clusters, hydrogen atoms and dangling bonds was built. Furthermore, it is explained how several electrical conduction parameters are affected by the carrier transportation path among the clusters.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma14092355</identifier><identifier>PMID: 34062754</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Amorphous structure ; Carbon ; Chemical bonds ; Chemical vapor deposition ; Clusters ; Conduction bands ; Electrical conduction ; Electrical properties ; Fine structure ; Glass substrates ; Hopping conduction ; Hydrogen ; Hydrogen atoms ; Hydrogenation ; Low temperature ; Mechanical properties ; Optical properties ; Transition temperature ; X ray absorption</subject><ispartof>Materials, 2021-05, Vol.14 (9), p.2355</ispartof><rights>2021 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/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2021 by the authors. 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c383t-6d372c100b464fcd140545effba3b6f5f6f1d58c39a5756abcbe9b4164d0d4633</citedby><cites>FETCH-LOGICAL-c383t-6d372c100b464fcd140545effba3b6f5f6f1d58c39a5756abcbe9b4164d0d4633</cites><orcidid>0000-0001-9167-1288 ; 0000-0003-3510-0071 ; 0000-0002-5710-7007</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124840/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8124840/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27903,27904,53769,53771</link.rule.ids></links><search><creatorcontrib>Tomidokoro, Masashi</creatorcontrib><creatorcontrib>Tunmee, Sarayut</creatorcontrib><creatorcontrib>Rittihong, Ukit</creatorcontrib><creatorcontrib>Euaruksakul, Chanan</creatorcontrib><creatorcontrib>Supruangnet, Ratchadaporn</creatorcontrib><creatorcontrib>Nakajima, Hideki</creatorcontrib><creatorcontrib>Hirata, Yuki</creatorcontrib><creatorcontrib>Ohtake, Naoto</creatorcontrib><creatorcontrib>Akasaka, Hiroki</creatorcontrib><title>Electrical Conduction Properties of Hydrogenated Amorphous Carbon Films with Different Structures</title><title>Materials</title><description>Hydrogenated amorphous carbon (a-C:H) films have optical and electrical properties that vary widely depending on deposition conditions; however, the electrical conduction mechanism, which is dependent on the film structure, has not yet been fully revealed. To understand the relationship between the film structure and electrical conduction mechanism, three types of a-C:H films were prepared and their film structures and electrical properties were evaluated. The sp2/(sp2 + sp3) ratios were measured by a near-edge X-ray absorption fine structure technique. From the conductivity–temperature relationship, variable-range hopping (VRH) conduction was shown to be the dominant conduction mechanism at low temperatures, and the electrical conduction mechanism changed at a transition temperature from VRH conduction to thermally activated band conduction. On the basis of structural analyses, a model of the microstructure of a-C:H that consists of sp2 and sp3-bonded carbon clusters, hydrogen atoms and dangling bonds was built. Furthermore, it is explained how several electrical conduction parameters are affected by the carrier transportation path among the clusters.</description><subject>Amorphous structure</subject><subject>Carbon</subject><subject>Chemical bonds</subject><subject>Chemical vapor deposition</subject><subject>Clusters</subject><subject>Conduction bands</subject><subject>Electrical conduction</subject><subject>Electrical properties</subject><subject>Fine structure</subject><subject>Glass substrates</subject><subject>Hopping conduction</subject><subject>Hydrogen</subject><subject>Hydrogen atoms</subject><subject>Hydrogenation</subject><subject>Low temperature</subject><subject>Mechanical properties</subject><subject>Optical properties</subject><subject>Transition temperature</subject><subject>X ray absorption</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkVtLAzEQhYMoKtUXf0HAFxGqyebSzYsgtVpBUFCfQzaXNrK7qUlW6b83RfE2LzMwh2_OYQA4wuiMEIHOO4UpEhVhbAvsYyH4GAtKt3_Ne-AwpRdUihBcV2IX7BGKeDVhdB-oWWt1jl6rFk5DbwadfejhQwwrG7O3CQYH52sTw8L2KlsDL7sQV8swJDhVsSnaa992Cb77vIRX3jkbbZ_hY44FNUSbDsCOU22yh199BJ6vZ0_T-fju_uZ2enk31qQmecwNmVQaI9RQTp02JRWjzDrXKNJwxxx32LBaE6HYhHHV6MaKhmJODTKUEzICF5_c1dB01ujiIqpWrqLvVFzLoLz8u-n9Ui7Cm6xxRWuKCuDkCxDD62BTlp1P2rat6m2JKytGeDkk8ObW8T_pSxhiX-JtVAizCSIb4OmnSseQUrTu2wxGcvM8-fM88gGbSYxP</recordid><startdate>20210501</startdate><enddate>20210501</enddate><creator>Tomidokoro, Masashi</creator><creator>Tunmee, Sarayut</creator><creator>Rittihong, Ukit</creator><creator>Euaruksakul, Chanan</creator><creator>Supruangnet, Ratchadaporn</creator><creator>Nakajima, Hideki</creator><creator>Hirata, Yuki</creator><creator>Ohtake, Naoto</creator><creator>Akasaka, Hiroki</creator><general>MDPI AG</general><general>MDPI</general><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/0000-0001-9167-1288</orcidid><orcidid>https://orcid.org/0000-0003-3510-0071</orcidid><orcidid>https://orcid.org/0000-0002-5710-7007</orcidid></search><sort><creationdate>20210501</creationdate><title>Electrical Conduction Properties of Hydrogenated Amorphous Carbon Films with Different Structures</title><author>Tomidokoro, Masashi ; Tunmee, Sarayut ; Rittihong, Ukit ; Euaruksakul, Chanan ; Supruangnet, Ratchadaporn ; Nakajima, Hideki ; Hirata, Yuki ; Ohtake, Naoto ; Akasaka, Hiroki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-6d372c100b464fcd140545effba3b6f5f6f1d58c39a5756abcbe9b4164d0d4633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Amorphous structure</topic><topic>Carbon</topic><topic>Chemical bonds</topic><topic>Chemical vapor deposition</topic><topic>Clusters</topic><topic>Conduction bands</topic><topic>Electrical conduction</topic><topic>Electrical properties</topic><topic>Fine structure</topic><topic>Glass substrates</topic><topic>Hopping conduction</topic><topic>Hydrogen</topic><topic>Hydrogen atoms</topic><topic>Hydrogenation</topic><topic>Low temperature</topic><topic>Mechanical properties</topic><topic>Optical properties</topic><topic>Transition temperature</topic><topic>X ray absorption</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tomidokoro, Masashi</creatorcontrib><creatorcontrib>Tunmee, Sarayut</creatorcontrib><creatorcontrib>Rittihong, Ukit</creatorcontrib><creatorcontrib>Euaruksakul, Chanan</creatorcontrib><creatorcontrib>Supruangnet, Ratchadaporn</creatorcontrib><creatorcontrib>Nakajima, Hideki</creatorcontrib><creatorcontrib>Hirata, Yuki</creatorcontrib><creatorcontrib>Ohtake, Naoto</creatorcontrib><creatorcontrib>Akasaka, Hiroki</creatorcontrib><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>Publicly Available Content Database</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>Tomidokoro, Masashi</au><au>Tunmee, Sarayut</au><au>Rittihong, Ukit</au><au>Euaruksakul, Chanan</au><au>Supruangnet, Ratchadaporn</au><au>Nakajima, Hideki</au><au>Hirata, Yuki</au><au>Ohtake, Naoto</au><au>Akasaka, Hiroki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrical Conduction Properties of Hydrogenated Amorphous Carbon Films with Different Structures</atitle><jtitle>Materials</jtitle><date>2021-05-01</date><risdate>2021</risdate><volume>14</volume><issue>9</issue><spage>2355</spage><pages>2355-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>Hydrogenated amorphous carbon (a-C:H) films have optical and electrical properties that vary widely depending on deposition conditions; however, the electrical conduction mechanism, which is dependent on the film structure, has not yet been fully revealed. To understand the relationship between the film structure and electrical conduction mechanism, three types of a-C:H films were prepared and their film structures and electrical properties were evaluated. The sp2/(sp2 + sp3) ratios were measured by a near-edge X-ray absorption fine structure technique. From the conductivity–temperature relationship, variable-range hopping (VRH) conduction was shown to be the dominant conduction mechanism at low temperatures, and the electrical conduction mechanism changed at a transition temperature from VRH conduction to thermally activated band conduction. On the basis of structural analyses, a model of the microstructure of a-C:H that consists of sp2 and sp3-bonded carbon clusters, hydrogen atoms and dangling bonds was built. Furthermore, it is explained how several electrical conduction parameters are affected by the carrier transportation path among the clusters.</abstract><cop>Basel</cop><pub>MDPI AG</pub><pmid>34062754</pmid><doi>10.3390/ma14092355</doi><orcidid>https://orcid.org/0000-0001-9167-1288</orcidid><orcidid>https://orcid.org/0000-0003-3510-0071</orcidid><orcidid>https://orcid.org/0000-0002-5710-7007</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1996-1944 |
| ispartof | Materials, 2021-05, Vol.14 (9), p.2355 |
| issn | 1996-1944 1996-1944 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_8124840 |
| 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 | Amorphous structure Carbon Chemical bonds Chemical vapor deposition Clusters Conduction bands Electrical conduction Electrical properties Fine structure Glass substrates Hopping conduction Hydrogen Hydrogen atoms Hydrogenation Low temperature Mechanical properties Optical properties Transition temperature X ray absorption |
| title | Electrical Conduction Properties of Hydrogenated Amorphous Carbon Films with Different Structures |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-26T10%3A32%3A55IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Electrical%20Conduction%20Properties%20of%20Hydrogenated%20Amorphous%20Carbon%20Films%20with%20Different%20Structures&rft.jtitle=Materials&rft.au=Tomidokoro,%20Masashi&rft.date=2021-05-01&rft.volume=14&rft.issue=9&rft.spage=2355&rft.pages=2355-&rft.issn=1996-1944&rft.eissn=1996-1944&rft_id=info:doi/10.3390/ma14092355&rft_dat=%3Cproquest_pubme%3E2530157030%3C/proquest_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2530157030&rft_id=info:pmid/34062754&rfr_iscdi=true |