Effect of Impurity Concentration Gradient on the Collection of Charge Carriers in the p-n Junction based Solar Cells

Effect of Impurity Concentration Gradient on the Collection of Charge Carriers in the p-n Junction based Solar Cells | 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 Effect of Impurity Concentration Gradient on the Collection of Charge Carriers in the p-n Junction based Solar Cells Ferdinand Gasparyan, Vladimir Gasparian This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5084103/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 An effective method for increasing the mean free path of light charge carriers in p-n junction solar cells is discussed. It is shown that by regulating the doping process of the light-absorbing emitter part of the solar cell and creating non-uniform distribution of the doping impurity in it, it is possible to increase the diffusion length of minority charge carriers. As a result, recombination losses decreases, the number of minority charge carriers passing through the p-n junction increases, the collection of photogenerated carriers increases, and consequently energy conversion efficiency increases. It is also shown that the stronger and greater the curvature of the impurity distribution in the illuminated p-emitter of a p-n solar cell, the greater the change in the diffusion coefficient. Estimates show that with a difference of four orders of magnitude in the concentration of doping acceptors (from 10 18 to 10 14 cm-3) in the emitter, the diffusion constant of minority carriers increases almost 3.1 times. Concentration gradient electrical losses diffusion constant 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-5084103","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":358010488,"identity":"bac4c6cf-ff43-44f8-a107-0cbb4cd17a79","order_by":0,"name":"Ferdinand Gasparyan","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAuklEQVRIiWNgGAWjYBAC9gYILUe8Fp4DENqYdC2JDcRr4V/8+HNBzb30DefPGDD8zCFGi8QzM+kZx4pzN9zIMWDs3UaEFnuJA2bMPGwJQC08Bgy8xGjhkTj++TPPv4R0A6DDGP8SpYW/x0Caty0hweBAjgEzkbbwlEnP7EswnHkjreCwLHG2HN/8ueBbgjzf+cMbH74lRguDRAIDM4hWOMDAcIAYDQwM/AcgWuQbiFM/CkbBKBgFIxAAAP28N7rTGD4lAAAAAElFTkSuQmCC","orcid":"","institution":"Yerevan State University","correspondingAuthor":true,"prefix":"","firstName":"Ferdinand","middleName":"","lastName":"Gasparyan","suffix":""},{"id":358010489,"identity":"2a02d484-0438-4f66-9a4b-e189304fcb52","order_by":1,"name":"Vladimir Gasparian","email":"","orcid":"","institution":"California State University","correspondingAuthor":false,"prefix":"","firstName":"Vladimir","middleName":"","lastName":"Gasparian","suffix":""}],"badges":[],"createdAt":"2024-09-13 13:24:28","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-5084103/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-5084103/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":65269917,"identity":"e3cff853-078a-48f9-ae3a-3108f2c3ab5f","added_by":"auto","created_at":"2024-09-25 12:44:43","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":339848,"visible":true,"origin":"","legend":"","description":"","filename":"GasparyanJCE24.pdf","url":"https://assets-eu.researchsquare.com/files/rs-5084103/v1_covered_058bf8d9-5996-4c4b-b57d-6c7551834238.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Effect of Impurity Concentration Gradient on the Collection of Charge Carriers in the p-n Junction based Solar Cells","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"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":"Concentration gradient, electrical losses, diffusion constant","lastPublishedDoi":"10.21203/rs.3.rs-5084103/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-5084103/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"An effective method for increasing the mean free path of light charge carriers in p-n junction solar cells is discussed. 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