{"id":"https://openalex.org/W3186981177","doi":"https://doi.org/10.3390/s21155118","title":"Fabrication and Characterization of Flexible Capacitive Humidity Sensors Based on Graphene Oxide on Porous PTFE Substrates","display_name":"Fabrication and Characterization of Flexible Capacitive Humidity Sensors Based on Graphene Oxide on Porous PTFE Substrates","publication_year":2021,"publication_date":"2021-07-28","ids":{"openalex":"https://openalex.org/W3186981177","doi":"https://doi.org/10.3390/s21155118","mag":"3186981177","pmid":"https://pubmed.ncbi.nlm.nih.gov/34372356"},"language":"en","primary_location":{"id":"doi:10.3390/s21155118","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21155118","pdf_url":"https://www.mdpi.com/1424-8220/21/15/5118/pdf?version=1627533168","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/21/15/5118/pdf?version=1627533168","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102965506","display_name":"Zhenyu Wei","orcid":"https://orcid.org/0000-0003-2461-9281"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhenyu Wei","raw_affiliation_strings":["Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064126560","display_name":"Jianqiu Huang","orcid":"https://orcid.org/0000-0002-7658-8184"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jianqiu Huang","raw_affiliation_strings":["Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China"],"raw_orcid":"https://orcid.org/0000-0002-7658-8184","affiliations":[{"raw_affiliation_string":"Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100686531","display_name":"Wenhao Chen","orcid":"https://orcid.org/0000-0002-0360-0373"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenhao Chen","raw_affiliation_strings":["Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5038334345","display_name":"Qing\u2010An Huang","orcid":"https://orcid.org/0000-0002-0646-7635"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Qingan Huang","raw_affiliation_strings":["Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China"],"raw_orcid":"https://orcid.org/0000-0002-0646-7635","affiliations":[{"raw_affiliation_string":"Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5038334345","https://openalex.org/A5064126560"],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":0.9929,"has_fulltext":true,"cited_by_count":21,"citation_normalized_percentile":{"value":0.72548322,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"21","issue":"15","first_page":"5118","last_page":"5118"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10338","display_name":"Advanced Sensor and Energy Harvesting Materials","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10338","display_name":"Advanced Sensor and Energy Harvesting Materials","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10461","display_name":"Gas Sensing Nanomaterials and Sensors","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10179","display_name":"Supercapacitor Materials and Fabrication","score":0.989799976348877,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/polytetrafluoroethylene","display_name":"Polytetrafluoroethylene","score":0.8891270160675049},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.8643105030059814},{"id":"https://openalex.org/keywords/graphene","display_name":"Graphene","score":0.8321383595466614},{"id":"https://openalex.org/keywords/capacitive-sensing","display_name":"Capacitive sensing","score":0.7666212320327759},{"id":"https://openalex.org/keywords/oxide","display_name":"Oxide","score":0.6040946841239929},{"id":"https://openalex.org/keywords/fabrication","display_name":"Fabrication","score":0.5644246339797974},{"id":"https://openalex.org/keywords/porosity","display_name":"Porosity","score":0.5592395067214966},{"id":"https://openalex.org/keywords/hysteresis","display_name":"Hysteresis","score":0.5431406497955322},{"id":"https://openalex.org/keywords/humidity","display_name":"Humidity","score":0.5041450262069702},{"id":"https://openalex.org/keywords/electrode","display_name":"Electrode","score":0.48963218927383423},{"id":"https://openalex.org/keywords/composite-material","display_name":"Composite material","score":0.4763220250606537},{"id":"https://openalex.org/keywords/raman-spectroscopy","display_name":"Raman spectroscopy","score":0.4412175416946411},{"id":"https://openalex.org/keywords/porous-medium","display_name":"Porous medium","score":0.4274910092353821},{"id":"https://openalex.org/keywords/nanotechnology","display_name":"Nanotechnology","score":0.37633705139160156},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.07376435399055481},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.06622478365898132},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.05166628956794739}],"concepts":[{"id":"https://openalex.org/C2780557906","wikidata":"https://www.wikidata.org/wiki/Q143252","display_name":"Polytetrafluoroethylene","level":2,"score":0.8891270160675049},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.8643105030059814},{"id":"https://openalex.org/C30080830","wikidata":"https://www.wikidata.org/wiki/Q169917","display_name":"Graphene","level":2,"score":0.8321383595466614},{"id":"https://openalex.org/C206755178","wikidata":"https://www.wikidata.org/wiki/Q1131271","display_name":"Capacitive sensing","level":2,"score":0.7666212320327759},{"id":"https://openalex.org/C2779851234","wikidata":"https://www.wikidata.org/wiki/Q50690","display_name":"Oxide","level":2,"score":0.6040946841239929},{"id":"https://openalex.org/C136525101","wikidata":"https://www.wikidata.org/wiki/Q5428139","display_name":"Fabrication","level":3,"score":0.5644246339797974},{"id":"https://openalex.org/C6648577","wikidata":"https://www.wikidata.org/wiki/Q622669","display_name":"Porosity","level":2,"score":0.5592395067214966},{"id":"https://openalex.org/C123299182","wikidata":"https://www.wikidata.org/wiki/Q190837","display_name":"Hysteresis","level":2,"score":0.5431406497955322},{"id":"https://openalex.org/C151420433","wikidata":"https://www.wikidata.org/wiki/Q180600","display_name":"Humidity","level":2,"score":0.5041450262069702},{"id":"https://openalex.org/C17525397","wikidata":"https://www.wikidata.org/wiki/Q176140","display_name":"Electrode","level":2,"score":0.48963218927383423},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.4763220250606537},{"id":"https://openalex.org/C40003534","wikidata":"https://www.wikidata.org/wiki/Q862228","display_name":"Raman spectroscopy","level":2,"score":0.4412175416946411},{"id":"https://openalex.org/C105569014","wikidata":"https://www.wikidata.org/wiki/Q3271208","display_name":"Porous medium","level":3,"score":0.4274910092353821},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.37633705139160156},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.07376435399055481},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.06622478365898132},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.05166628956794739},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s21155118","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21155118","pdf_url":"https://www.mdpi.com/1424-8220/21/15/5118/pdf?version=1627533168","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:34372356","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/34372356","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:c51679d48e6d4635ae7540f6371f8dcb","is_oa":true,"landing_page_url":"https://doaj.org/article/c51679d48e6d4635ae7540f6371f8dcb","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 21, Iss 15, p 5118 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/15/5118/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21155118","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 21; Issue 15; Pages: 5118","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:8348390","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/8348390","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s21155118","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21155118","pdf_url":"https://www.mdpi.com/1424-8220/21/15/5118/pdf?version=1627533168","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8274028457","display_name":"\u57fa\u4e8e\u805a\u56db\u6c1f\u4e59\u70ef\u5fae\u5b54\u6750\u6599\u7684\u65e0\u6e90\u65e0\u7ebf\u67d4\u6027\u6e7f\u5ea6\u4f20\u611f\u5668\u7814\u7a76","funder_award_id":"61771136","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3186981177.pdf","grobid_xml":"https://content.openalex.org/works/W3186981177.grobid-xml"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W1976130042","https://openalex.org/W1983517597","https://openalex.org/W2004688185","https://openalex.org/W2007405391","https://openalex.org/W2015993785","https://openalex.org/W2016995518","https://openalex.org/W2053818316","https://openalex.org/W2058070112","https://openalex.org/W2078184681","https://openalex.org/W2092653614","https://openalex.org/W2128654538","https://openalex.org/W2158368509","https://openalex.org/W2168808629","https://openalex.org/W2170143575","https://openalex.org/W2279231444","https://openalex.org/W2576972526","https://openalex.org/W2606976842","https://openalex.org/W2762383340","https://openalex.org/W2782156755","https://openalex.org/W2791346657","https://openalex.org/W2892262936","https://openalex.org/W2917386416","https://openalex.org/W2965688118","https://openalex.org/W2999130669","https://openalex.org/W3137107426"],"related_works":["https://openalex.org/W2359528953","https://openalex.org/W2081956749","https://openalex.org/W4233235222","https://openalex.org/W2613934581","https://openalex.org/W4242345343","https://openalex.org/W4235447150","https://openalex.org/W2562262916","https://openalex.org/W4230443477","https://openalex.org/W2134746914","https://openalex.org/W2312410299"],"abstract_inverted_index":{"Porous":[0],"polytetrafluoroethylene":[1],"(PTFE)":[2],"is":[3,16,77],"physically":[4],"flexible,":[5],"thermally":[6],"and":[7,12,46,53,63,71,94,102,123],"chemically":[8],"stable,":[9],"relatively":[10],"inexpensive,":[11],"commercially":[13],"available.":[14],"It":[15,104],"attractive":[17],"for":[18],"various":[19],"flexible":[20,26,108],"sensors.":[21],"This":[22],"paper":[23],"has":[24],"studied":[25],"capacitive":[27,109],"humidity":[28,85,110],"sensors":[29,86,99,111],"fabricated":[30,112],"on":[31,56,88,113],"porous":[32,48,90],"PTFE":[33,49,58,91,117],"substrates.":[34,92],"Graphene":[35],"oxide":[36],"(GO)":[37],"was":[38],"used":[39],"as":[40,50],"a":[41],"sensing":[42],"material,":[43],"both":[44],"hydrophobic":[45,89,116],"hydrophilic":[47],"the":[51,57,81,84,107,114],"substrates,":[52],"interdigitated":[54],"electrodes":[55],"substrates":[59],"were":[60,66],"screen-printed.":[61],"SEM":[62],"Raman":[64],"spectrum":[65],"utilized":[67],"to":[68,79],"characterize":[69],"GO":[70],"PTFE.":[72],"An":[73],"ethanol":[74],"soak":[75],"process":[76],"developed":[78],"increase":[80],"yield":[82],"of":[83,97],"based":[87],"Static":[93],"dynamic":[95],"properties":[96],"these":[98],"are":[100],"tested":[101],"analyzed.":[103],"demonstrates":[105],"that":[106],"ethanol-treated":[115],"exhibit":[118],"high":[119],"sensitivity,":[120],"small":[121],"hysteresis,":[122],"fast":[124],"response/recovery":[125],"time.":[126]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}