dc.contributor.advisor | Ahmad, Shahzada | |
dc.contributor.advisor | Kazim, Samrana | |
dc.contributor.author | Bastián Waduge, Naveen Harindu Hemarisi | |
dc.date.accessioned | 2023-09-15T09:31:46Z | |
dc.date.available | 2023-09-15T09:31:46Z | |
dc.date.issued | 2023-03-03 | |
dc.date.submitted | 2023-03-03 | |
dc.identifier.uri | http://hdl.handle.net/10810/62564 | |
dc.description | 239 p. | es_ES |
dc.description.abstract | Perovskite solar cells (PSCs) have drawn a great deal of attention in the photovoltaic community owing to their excellent power conversion efficiency and low-cost production. Interfaces remain the weakest part of the complete device, holding their further improvement towards commercialization. This thesis focuses on a comprehensive understanding of the photo-induced charge transfer dynamics and the reliability enhancement of PSCs based on interfacial modification through low-dimensional semiconductor materials. It is found that the two-dimensional (2D) transition metal dichalcogenides (TMDs)-based interfacial layer minimizes the energy barrier and charge accumulation at the interface of the perovskite/charge-transport-layer while prompting extraction of photo-induced charges in the device. The reduction of interface recombination and the enhancement of charge transfer dynamics at the NiOx nanocrystal/perovskite interface were further constructed by the application of a molecularly engineered dithieno thiophene-based thin organic semiconductor layer on NiOx. The developed strategy is further extended with the implementation of a 2D-C3N4 polymeric network, which enables greater PCE byreducing non-radiative losses and faulty charge build-up at the NiOx/perovskite interface. The greater stability of perovskite is established owing to the strong coordination of MA+ cations with unbound nitrogen electron pairs in the C3N4. A thorough grasp of the perovskite/electron transport layer interface was further studied, and it is found that 2D-TiS2 had a greater effect on PV performance when paired with PC60BM under ideal addition. The results presented in this thesis offer unique insight into the interfacial modification using low-dimensional materials to achieve simultaneous high efficiency and stability in PSCs. | es_ES |
dc.description.sponsorship | BCMaterials: Basque Center for Materials Applications & Nanostructures | es_ES |
dc.language.iso | eng | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | electrochemistry | es_ES |
dc.subject | interfaces | es_ES |
dc.subject | solid state devices | es_ES |
dc.subject | electroquímica | es_ES |
dc.subject | dispositivos de estado sólido | es_ES |
dc.title | Reliability Enhancement of Perovskite Solar Cells: Role of Low-Dimensional Materials for Interfacial Modifications | es_ES |
dc.type | info:eu-repo/semantics/doctoralThesis | es_ES |
dc.rights.holder | (c)2023 NAVEEN HARINDU HEMARISI BASTIAN WADUGE | |
dc.identifier.studentID | 988202 | es_ES |
dc.identifier.projectID | 23125 | es_ES |
dc.departamentoes | Química Orgánica e Inorgánica | es_ES |
dc.departamentoeu | Kimika Organikoa eta Ez-Organikoa | es_ES |