Slot-die coating of niobium pentoxide applied as electron transport layer for perovskite solar cells

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorHelmholtz-Zentrum Berlin für Materialien (Solution-Processing of Hybrid Materials and Devices)-
Autor(es): dc.contributorONINN Centro de Inovação-
Autor(es): dc.contributorHumboldt Universität zu Berlin (IRIS Adlershof)-
Autor(es): dc.creatorAffonço, Lucas J.-
Autor(es): dc.creatorFernandes, Silvia L.-
Autor(es): dc.creatorAssunção, João P.F.-
Autor(es): dc.creatorDagar, Janardan-
Autor(es): dc.creatorGraeff, Carlos F. de O.-
Autor(es): dc.creatorda Silva, José H.D.-
Autor(es): dc.creatorUnger, Eva-
Data de aceite: dc.date.accessioned2025-08-21T23:21:36Z-
Data de disponibilização: dc.date.available2025-08-21T23:21:36Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.solener.2024.112691-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308662-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308662-
Descrição: dc.descriptionDespite their high efficiency, perovskite solar cells encounter stability issues and necessitate techniques capable of depositing large areas at a high throughput of their layers. Niobium pentoxide exhibits pertinent characteristics, including suitable energy level alignment and photostability for effective integration as transport layer in perovskite solar cells, improving their stability. In this study, the deposition of Nb2O5 as an electron transport layer via slot die coating is systematically investigated. An examination of various parameters for the slot die coating process was conducted, resulting in films with different structural and morphological characteristics. These Nb2O5 layers were used as electron transport layers in n-i-p perovskite devices. Current density versus voltage scans were utilized to evaluate the device performance, alongside transient analysis. Under optimal coating conditions, efficiencies up to 12 % were obtained. A transient analysis at the maximum power point identified an optimal delay time of approximately 200 ms for integration into the current–voltage curves, facilitating the approach towards an equilibrium state within the device. A discussion regarding the transient response is presented, delving into the factors that restrict the device's performance and proposing potential strategies for its enhancement.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionSão Paulo State University – UNESP (Graduate Program in Materials Science and Technology School of Sciences)-
Descrição: dc.descriptionHelmholtz-Zentrum Berlin für Materialien (Solution-Processing of Hybrid Materials and Devices)-
Descrição: dc.descriptionONINN Centro de Inovação-
Descrição: dc.descriptionHumboldt Universität zu Berlin (IRIS Adlershof)-
Descrição: dc.descriptionSão Paulo State University – UNESP (Graduate Program in Materials Science and Technology School of Sciences)-
Descrição: dc.descriptionFAPESP: 2020/12356-8-
Descrição: dc.descriptionCAPES: 88887.571101/2020-00-
Idioma: dc.languageen-
Relação: dc.relationSolar Energy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectNiobium oxide-
Palavras-chave: dc.subjectPerovskite solar cell-
Palavras-chave: dc.subjectSlot die coating-
Palavras-chave: dc.subjectTransport layer-
Título: dc.titleSlot-die coating of niobium pentoxide applied as electron transport layer for perovskite solar cells-
Tipo de arquivo: dc.typelivro digital-
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