Enhancing Organic Photodetector Performance Based on PBDB-T/ITIC and GO: A SCAPS-1D Simulation Study

Enhancing Organic Photodetector Performance Based on PBDB-T/ITIC and GO: A SCAPS-1D Simulation Study | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Enhancing Organic Photodetector Performance Based on PBDB-T/ITIC and GO: A SCAPS-1D Simulation Study Ahmet Sait Alali, Murat Oduncuoglu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4618527/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract This study investigates the optimization of organic photodetectors (OPDs) using SCAPS-1D simulation, focusing on the effects of layer thickness, doping density, temperature, external quantum efficiency (EQE), and responsivity on key performance metrics. The device structure includes PBDB-T/ITIC as the active layer and graphene oxide (GO) as the hole transport layer (HTL). By systematically varying the thickness of the PBDB-T/ITIC active layer and the GO hole transport layer, as well as adjusting the donor and acceptor densities, we analyze their impact on open-circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF), power conversion efficiency (η), EQE, and responsivity. The simulation results reveal that an optimal active layer thickness of 800 nm for PBDB-T/ITIC and a GO layer thickness of 50 nm maximize device performance. Additionally, a donor density of \({9\times 10}^{19}{cm}^{-3}\) for PFN and an acceptor density of \({10}^{20}{cm}^{-3}\) for GO significantly enhance efficiency. The photodetector demonstrates a high current under illumination, peaking responsivity around 920 nm, and excellent performance in the visible spectrum. Temperature variations show optimal performance around 330 K. These findings highlight the critical role of precise material and structural optimization in achieving high-efficiency OPDs, providing valuable insights for future research and development in this field. Organic Photodetector SCAPS 1D Simulation Analysis Responsivity Temperature Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4618527","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":324555930,"identity":"8fd0853a-f397-47a3-bac1-98082b2ef7db","order_by":0,"name":"Ahmet Sait Alali","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA40lEQVRIiWNgGAWjYFACxgYQKQNiPQASPHxEaGkE6eEBYmYDEIONWGtAWtgkQFyCWuTbD7c/Lmyz4+FnP/us8muOnQwbA/PDRzfwaDE4k9jYPLMtmUeyJ93stuy2ZKDD2IyNc/BpYQBq4W07wGNwII3ttuQ2ZqAWHjZpfFrk+x9CtNiff8ZWLLmtnrAWhhswWyTS2Bg/bjtMWIvBjYeNs3nOJfNI3HjGLM247TgPGzMBv8j3pz/4zFNmJ8ffn8b48ee2ant+9uaHj/E6DBkw84BJYpWDAOMPUlSPglEwCkbBiAEAAq1Bijg2cYgAAAAASUVORK5CYII=","orcid":"","institution":"Yıldız Technical University","correspondingAuthor":true,"prefix":"","firstName":"Ahmet","middleName":"Sait","lastName":"Alali","suffix":""},{"id":324555931,"identity":"ff914c29-5cc9-456b-bf76-cf35207bbb2e","order_by":1,"name":"Murat Oduncuoglu","email":"","orcid":"","institution":"Yıldız Technical University","correspondingAuthor":false,"prefix":"","firstName":"Murat","middleName":"","lastName":"Oduncuoglu","suffix":""}],"badges":[],"createdAt":"2024-06-21 17:12:43","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4618527/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4618527/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":71450183,"identity":"9bfc925d-5a3a-4445-90bb-254deccbe1d4","added_by":"auto","created_at":"2024-12-15 16:31:45","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":998899,"visible":true,"origin":"","legend":"","description":"","filename":"Mod8art5PBDBTGO.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4618527/v1_covered_7b5211ea-e4ca-4988-8520-c96f16046f7a.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Enhancing Organic Photodetector Performance Based on PBDB-T/ITIC and GO: A SCAPS-1D Simulation Study","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Organic Photodetector, SCAPS 1D, Simulation Analysis, Responsivity, Temperature","lastPublishedDoi":"10.21203/rs.3.rs-4618527/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4618527/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis study investigates the optimization of organic photodetectors (OPDs) using SCAPS-1D simulation, focusing on the effects of layer thickness, doping density, temperature, external quantum efficiency (EQE), and responsivity on key performance metrics. The device structure includes PBDB-T/ITIC as the active layer and graphene oxide (GO) as the hole transport layer (HTL). By systematically varying the thickness of the PBDB-T/ITIC active layer and the GO hole transport layer, as well as adjusting the donor and acceptor densities, we analyze their impact on open-circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF), power conversion efficiency (η), EQE, and responsivity. The simulation results reveal that an optimal active layer thickness of 800 nm for PBDB-T/ITIC and a GO layer thickness of 50 nm maximize device performance. Additionally, a donor density of \u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\({9\\times 10}^{19}{cm}^{-3}\\)\u003c/span\u003e\u003c/span\u003e for PFN and an acceptor density of \u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\({10}^{20}{cm}^{-3}\\)\u003c/span\u003e\u003c/span\u003e for GO significantly enhance efficiency. The photodetector demonstrates a high current under illumination, peaking responsivity around 920 nm, and excellent performance in the visible spectrum. Temperature variations show optimal performance around 330 K. These findings highlight the critical role of precise material and structural optimization in achieving high-efficiency OPDs, providing valuable insights for future research and development in this field.\u003c/p\u003e","manuscriptTitle":"Enhancing Organic Photodetector Performance Based on PBDB-T/ITIC and GO: A SCAPS-1D Simulation Study","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-12 17:56:14","doi":"10.21203/rs.3.rs-4618527/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"ed522d28-3c29-4cd9-9a7e-e9ab28942613","owner":[],"postedDate":"July 12th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-12-15T16:23:37+00:00","versionOfRecord":[],"versionCreatedAt":"2024-07-12 17:56:14","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4618527","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4618527","identity":"rs-4618527","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}