{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Betancur PF"],"funding":["European Social Fund Plus","Agencia Estatal de Investigación","Ministry of Energy, Israel","NextGenerationEU","Conselleria d&apos;Educació, Investigació, Cultura i Esport"],"pagination":["8410-8417"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12376095"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(33)"],"pubmed_abstract":["All-printed mesoporous perovskite solar cells (PSCs) show great potential for scalable photovoltaic technologies, yet direct identification of their key working mechanisms by impedance spectroscopy (IS) is not well-established. IS response of printable hole transport layer (HTL)-free triple mesoporous (mp) TiO<sub>2</sub>/ZrO<sub>2</sub>/ITO PSCs with varying TiO<sub>2</sub> electron transport layer (ETL) thicknesses (500-1200 nm) reveals strong interplay between the mesoporous scaffold architecture and charge carrier dynamics, significantly impacting resistive and capacitive features of the devices. The emergence of an intermediate-frequency feature can be related to chemical capacitance of the mp-TiO<sub>2</sub> layer, a phenomenon commonly associated with dye-sensitized solar cells, decoupling recombination, and key transport phenomena for both charge carriers. An updated equivalent circuit model, incorporating chemical capacitance and associated transport/recombination resistances can capture these effects. These findings provide valuable insights into the role of mesoporous scaffold engineering in printable PSCs and offer a robust characterization tool for optimizing scalable photovoltaic architectures."],"journal":["The journal of physical chemistry letters"],"pubmed_title":["Working Mechanisms of Triple-Oxide Mesoporous Hole-Transport-Layer-Free Printable Perovskite Solar Cells via Impedance Spectroscopy."],"pmcid":["PMC12376095"],"funding_grant_id":["CEX2021-001230-S","CNS2023-144270","TED2021-131600B-C32","ESGENT 010/2024","TED2021-131600B-C31","MFA/2022/020","PID2023-151880OB-C31","CIACIF/2022/183","MFA/2022/040"],"pubmed_authors":["Betancur PF","Sohmer M","Boix PP","Mora-Sero I","Etgar L"],"additional_accession":[]},"is_claimable":false,"name":"Working Mechanisms of Triple-Oxide Mesoporous Hole-Transport-Layer-Free Printable Perovskite Solar Cells via Impedance Spectroscopy.","description":"All-printed mesoporous perovskite solar cells (PSCs) show great potential for scalable photovoltaic technologies, yet direct identification of their key working mechanisms by impedance spectroscopy (IS) is not well-established. IS response of printable hole transport layer (HTL)-free triple mesoporous (mp) TiO<sub>2</sub>/ZrO<sub>2</sub>/ITO PSCs with varying TiO<sub>2</sub> electron transport layer (ETL) thicknesses (500-1200 nm) reveals strong interplay between the mesoporous scaffold architecture and charge carrier dynamics, significantly impacting resistive and capacitive features of the devices. The emergence of an intermediate-frequency feature can be related to chemical capacitance of the mp-TiO<sub>2</sub> layer, a phenomenon commonly associated with dye-sensitized solar cells, decoupling recombination, and key transport phenomena for both charge carriers. An updated equivalent circuit model, incorporating chemical capacitance and associated transport/recombination resistances can capture these effects. These findings provide valuable insights into the role of mesoporous scaffold engineering in printable PSCs and offer a robust characterization tool for optimizing scalable photovoltaic architectures.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Aug","modification":"2026-05-09T10:36:24.661Z","creation":"2026-04-08T00:48:01.102Z"},"accession":"S-EPMC12376095","cross_references":{"pubmed":["40778649"],"doi":["10.1021/acs.jpclett.5c01405"]}}