{"id":"https://openalex.org/W4210480639","doi":"https://doi.org/10.3390/s22030910","title":"Monolithic Integrated OLED\u2013OPD Unit for Point-of-Need Nitrite Sensing","display_name":"Monolithic Integrated OLED\u2013OPD Unit for Point-of-Need Nitrite Sensing","publication_year":2022,"publication_date":"2022-01-25","ids":{"openalex":"https://openalex.org/W4210480639","doi":"https://doi.org/10.3390/s22030910","pmid":"https://pubmed.ncbi.nlm.nih.gov/35161655"},"language":"en","primary_location":{"id":"doi:10.3390/s22030910","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22030910","pdf_url":"https://www.mdpi.com/1424-8220/22/3/910/pdf?version=1643103168","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/1424-8220/22/3/910/pdf?version=1643103168","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5047283486","display_name":"Igor Titov","orcid":"https://orcid.org/0000-0002-3264-3209"},"institutions":[{"id":"https://openalex.org/I32021983","display_name":"Christian-Albrechts-Universit\u00e4t zu Kiel","ror":"https://ror.org/04v76ef78","country_code":"DE","type":"education","lineage":["https://openalex.org/I32021983"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Igor Titov","raw_affiliation_strings":["Integrated Systems and Photonics, Faculty of Engineering, Kiel University, 24118 Kiel, Germany"],"raw_orcid":"https://orcid.org/0000-0002-3264-3209","affiliations":[{"raw_affiliation_string":"Integrated Systems and Photonics, Faculty of Engineering, Kiel University, 24118 Kiel, Germany","institution_ids":["https://openalex.org/I32021983"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051532193","display_name":"Markus K\u00f6pke","orcid":null},"institutions":[{"id":"https://openalex.org/I32021983","display_name":"Christian-Albrechts-Universit\u00e4t zu Kiel","ror":"https://ror.org/04v76ef78","country_code":"DE","type":"education","lineage":["https://openalex.org/I32021983"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Markus K\u00f6pke","raw_affiliation_strings":["Integrated Systems and Photonics, Faculty of Engineering, Kiel University, 24118 Kiel, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Integrated Systems and Photonics, Faculty of Engineering, Kiel University, 24118 Kiel, Germany","institution_ids":["https://openalex.org/I32021983"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013857783","display_name":"Martina Gerken","orcid":"https://orcid.org/0000-0002-4234-7833"},"institutions":[{"id":"https://openalex.org/I32021983","display_name":"Christian-Albrechts-Universit\u00e4t zu Kiel","ror":"https://ror.org/04v76ef78","country_code":"DE","type":"education","lineage":["https://openalex.org/I32021983"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Martina Gerken","raw_affiliation_strings":["Integrated Systems and Photonics, Faculty of Engineering, Kiel University, 24118 Kiel, Germany"],"raw_orcid":"https://orcid.org/0000-0002-4234-7833","affiliations":[{"raw_affiliation_string":"Integrated Systems and Photonics, Faculty of Engineering, Kiel University, 24118 Kiel, Germany","institution_ids":["https://openalex.org/I32021983"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5047283486"],"corresponding_institution_ids":["https://openalex.org/I32021983"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2145,"currency":"EUR","value_usd":2313},"fwci":1.0769,"has_fulltext":true,"cited_by_count":9,"citation_normalized_percentile":{"value":0.70153846,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"22","issue":"3","first_page":"910","last_page":"910"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11472","display_name":"Analytical Chemistry and Sensors","score":0.996399998664856,"subfield":{"id":"https://openalex.org/subfields/1502","display_name":"Bioengineering"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11472","display_name":"Analytical Chemistry and Sensors","score":0.996399998664856,"subfield":{"id":"https://openalex.org/subfields/1502","display_name":"Bioengineering"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11667","display_name":"Advanced Chemical Sensor Technologies","score":0.9907000064849854,"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":0.9872000217437744,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/oled","display_name":"OLED","score":0.8874174356460571},{"id":"https://openalex.org/keywords/nitrite","display_name":"Nitrite","score":0.7372294664382935},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.6118413805961609},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.5950343608856201},{"id":"https://openalex.org/keywords/detection-limit","display_name":"Detection limit","score":0.5342504382133484},{"id":"https://openalex.org/keywords/diode","display_name":"Diode","score":0.44507065415382385},{"id":"https://openalex.org/keywords/spectrometer","display_name":"Spectrometer","score":0.44476187229156494},{"id":"https://openalex.org/keywords/griess-test","display_name":"Griess test","score":0.4140041172504425},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.28522807359695435},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.28370311856269836},{"id":"https://openalex.org/keywords/nanotechnology","display_name":"Nanotechnology","score":0.14346930384635925},{"id":"https://openalex.org/keywords/nitrate","display_name":"Nitrate","score":0.10797235369682312},{"id":"https://openalex.org/keywords/chromatography","display_name":"Chromatography","score":0.06978514790534973},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06836223602294922}],"concepts":[{"id":"https://openalex.org/C150759737","wikidata":"https://www.wikidata.org/wiki/Q209593","display_name":"OLED","level":3,"score":0.8874174356460571},{"id":"https://openalex.org/C2776179834","wikidata":"https://www.wikidata.org/wiki/Q72158415","display_name":"Nitrite","level":3,"score":0.7372294664382935},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6118413805961609},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.5950343608856201},{"id":"https://openalex.org/C119128265","wikidata":"https://www.wikidata.org/wiki/Q900165","display_name":"Detection limit","level":2,"score":0.5342504382133484},{"id":"https://openalex.org/C78434282","wikidata":"https://www.wikidata.org/wiki/Q11656","display_name":"Diode","level":2,"score":0.44507065415382385},{"id":"https://openalex.org/C33390570","wikidata":"https://www.wikidata.org/wiki/Q188463","display_name":"Spectrometer","level":2,"score":0.44476187229156494},{"id":"https://openalex.org/C8979722","wikidata":"https://www.wikidata.org/wiki/Q2886065","display_name":"Griess test","level":4,"score":0.4140041172504425},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.28522807359695435},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.28370311856269836},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.14346930384635925},{"id":"https://openalex.org/C2776384668","wikidata":"https://www.wikidata.org/wiki/Q182168","display_name":"Nitrate","level":2,"score":0.10797235369682312},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.06978514790534973},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06836223602294922},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.0}],"mesh":[{"descriptor_ui":"D009573","descriptor_name":"Nitrites","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009573","descriptor_name":"Nitrites","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009573","descriptor_name":"Nitrites","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D010783","descriptor_name":"Photometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D010783","descriptor_name":"Photometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D010783","descriptor_name":"Photometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012031","descriptor_name":"Refractometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012031","descriptor_name":"Refractometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012031","descriptor_name":"Refractometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":6,"locations":[{"id":"doi:10.3390/s22030910","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22030910","pdf_url":"https://www.mdpi.com/1424-8220/22/3/910/pdf?version=1643103168","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:35161655","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/35161655","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:c1716456573a4ea383821cb1c44bbe52","is_oa":true,"landing_page_url":"https://doaj.org/article/c1716456573a4ea383821cb1c44bbe52","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 22, Iss 3, p 910 (2022)","raw_type":"article"},{"id":"pmh:oai:macau.uni-kiel.de:macau_mods_00004748","is_oa":true,"landing_page_url":"https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2024-00463-8","pdf_url":null,"source":{"id":"https://openalex.org/S4306400664","display_name":"Multimedialen Archiv und Publikationsserver der Christian-Albrechts-Universit\u00e4t zu Kiel (Christian-Albrechts-Universit\u00e4t zu Kiel)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I151221077","host_organization_name":"Chung Yuan Christian University","host_organization_lineage":["https://openalex.org/I151221077"],"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":null,"raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/22/3/910/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s22030910","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 22; Issue 3; Pages: 910","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:8838366","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/8838366","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/s22030910","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22030910","pdf_url":"https://www.mdpi.com/1424-8220/22/3/910/pdf?version=1643103168","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/G8103671997","display_name":null,"funder_award_id":"LPW-E/1.2.2/1303","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"},{"id":"https://openalex.org/F4320335322","display_name":"European Regional Development Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4210480639.pdf","grobid_xml":"https://content.openalex.org/works/W4210480639.grobid-xml"},"referenced_works_count":49,"referenced_works":["https://openalex.org/W1946360116","https://openalex.org/W1995174361","https://openalex.org/W1996679335","https://openalex.org/W1998245345","https://openalex.org/W2015771419","https://openalex.org/W2052351374","https://openalex.org/W2059454166","https://openalex.org/W2067080805","https://openalex.org/W2073576745","https://openalex.org/W2080017845","https://openalex.org/W2082796697","https://openalex.org/W2102498581","https://openalex.org/W2107163627","https://openalex.org/W2109759231","https://openalex.org/W2121988986","https://openalex.org/W2137681596","https://openalex.org/W2150875451","https://openalex.org/W2202258905","https://openalex.org/W2293465848","https://openalex.org/W2321290200","https://openalex.org/W2339545839","https://openalex.org/W2404577457","https://openalex.org/W2534256667","https://openalex.org/W2570467237","https://openalex.org/W2625026535","https://openalex.org/W2740427681","https://openalex.org/W2755121396","https://openalex.org/W2765741635","https://openalex.org/W2766427015","https://openalex.org/W2770780309","https://openalex.org/W2799718660","https://openalex.org/W2882995636","https://openalex.org/W2886876668","https://openalex.org/W2888217594","https://openalex.org/W2888845003","https://openalex.org/W2889373221","https://openalex.org/W2896004850","https://openalex.org/W2899609120","https://openalex.org/W2899905579","https://openalex.org/W2907026057","https://openalex.org/W2914669799","https://openalex.org/W2952895582","https://openalex.org/W2953563541","https://openalex.org/W2966801353","https://openalex.org/W2971815893","https://openalex.org/W3015369509","https://openalex.org/W3186138099","https://openalex.org/W4200614692","https://openalex.org/W4205932511"],"related_works":["https://openalex.org/W2106974244","https://openalex.org/W2071997907","https://openalex.org/W2115048328","https://openalex.org/W2314238325","https://openalex.org/W2539343888","https://openalex.org/W1987197495","https://openalex.org/W2337428031","https://openalex.org/W3008509695","https://openalex.org/W1996345666","https://openalex.org/W1993391810"],"abstract_inverted_index":{"In":[0,49],"this":[1,50,84,184],"study,":[2],"we":[3,114],"present":[4],"a":[5,33,52,91,94,104,108,127,137,159,165,169,190],"highly":[6,170,175],"integrated":[7,194],"design":[8],"of":[9,22,57,76,83,90,119,130,139,144,161,189],"organic":[10,39,46,69],"optoelectronic":[11],"devices":[12,70],"for":[13,73,123,196],"Point-of-Need":[14],"(PON)":[15],"nitrite":[16,23,53,124,200],"(NO2\u2212)":[17],"measurement.":[18],"The":[19,68,141],"spectrophotometric":[20],"investigation":[21],"concentration":[24,54],"was":[25],"performed":[26],"utilizing":[27],"the":[28,81,88,117,120,186],"popular":[29],"Griess":[30],"reagent":[31],"and":[32,44,103,136,147,158,174],"reflection-based":[34],"photometric":[35,199],"unit":[36],"with":[37,107,126,150],"an":[38,45,145,148],"light":[40,64],"emitting":[41,96],"diode":[42],"(OLED)":[43],"photodetector":[47],"(OPD).":[48],"approach":[51],"dependent":[55],"amount":[56],"azo":[58,85],"dye":[59,86],"is":[60,164,185],"formed,":[61],"which":[62],"absorbs":[63],"around":[65,111],"~540":[66],"nm.":[67],"are":[71],"designed":[72],"sensitive":[74],"detection":[75,131],"absorption":[77],"changes":[78],"caused":[79],"by":[80],"presence":[82],"without":[87],"need":[89],"spectrometer.":[92],"Using":[93],"green":[95],"TCTA:Ir(mppy)3":[97],"OLED":[98,146],"(peaking":[99],"at":[100],"~512":[101],"nm)":[102],"DMQA:DCV3T":[105],"OPD":[106,149],"maximum":[109],"sensitivity":[110],"530":[112],"nm,":[113],"successfully":[115],"demonstrated":[116],"operation":[118],"OLED\u2013OPD":[121],"pair":[122],"sensing":[125],"low":[128,172],"limit":[129],"46":[132],"\u00b5g/L":[133],"(1.0":[134],"\u00b5M)":[135],"linearity":[138],"99%.":[140],"hybrid":[142],"integration":[143],"0.5":[151,154],"mm":[152,155,163],"\u00d7":[153],"device":[156],"sizes":[157],"gap":[160],"0.9":[162],"first":[166,187],"step":[167],"towards":[168],"compact,":[171],"cost":[173],"commercially":[176],"viable":[177],"PON":[178,198],"analytic":[179],"platform.":[180],"To":[181],"our":[182],"knowledge,":[183],"demonstration":[188],"fully":[191],"organic-semiconductor-based":[192],"monolithic":[193],"platform":[195],"real-time":[197],"analysis.":[201]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3}],"updated_date":"2026-07-16T13:24:37.021932","created_date":"2025-10-10T00:00:00"}