Author, as appears in the article.: Samir, Mohamed; Moustafa, Enas; Almora, Osbel; Ramirez-Como, Magaly; Pilar Montero-Rama, Maria; Sanchez, Jose G; Palomares, Emilio; Pallares, Josep; Marsal, Lluis F
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Almora Rodríguez, Osbel / Marsal Garví, Luis Francisco / Montero Rama, Maria del Pilar / Pallarès Marzal, Josep / SANCHEZ LÓPEZ, JOSÉ GUADALUPE
Keywords: Composite htl Conjugated polyelectrolyte Efficiency High ideality factor Hole transport layers Nonfullerene acceptors Organic photovoltaics Pcpdtphso3-na (cpe-na Pcpdtphso3-na (cpe-na) Pedotps Theoretical-model
Abstract: Organic photovoltaic (OPV) cells have experienced significant development in the last decades after the introduction of nonfullerene acceptor molecules with top power conversion efficiencies reported over 19% and considerable versatility, for example, with application in transparent/semitransparent and flexible photovoltaics. Yet, the optimization of the operational stability continues to be a challenge. This study presents a comprehensive investigation of the use of a conjugated polyelectrolyte polymer (CPE-Na) as a hole layer (HTL) to improve the performance and longevity of OPV cells. Two different fabrication approaches were adopted: integrating CPE-Na with PEDOT:PSS to create a composite HTL and using CPE-Na as a stand-alone bilayer deposited beneath PEDOT:PSS on the ITO substrate. These configurations were compared against a reference device employing PEDOT:PSS alone, as the HTL increased efficiency and fill factor. The instruments with CPE-Na also demonstrated increased stability in the dark and under simulated operational conditions. Device-based PEDOT:PSS as an HTL reached T80 after 2500 h while involving CPE-Na in the device kept at T90 in the same period, evidenced by a reduced degradation rate. Furthermore, the impedance spectroscopy and photoinduced transient methods suggest optimized charge transfer and reduced charge carrier recombination. These findings collectively highlight the potential of CPE-Na as a HTL optimizer material for nonfluorine OPV cells.
Thematic Areas: Arquitetura, urbanismo e design Astronomia / física Biodiversidade Biotecnología Ciências agrárias i Ciências ambientais Ciências biológicas i Ciências biológicas ii Ciências biológicas iii Economia Engenharias ii Engenharias iii Engenharias iv Farmacia General materials science Interdisciplinar Materiais Materials science (all) Materials science (miscellaneous) Materials science, multidisciplinary Medicina i Medicina ii Medicina veterinaria Medicine (miscellaneous) Nanoscience & nanotechnology Nanoscience and nanotechnology Química
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: lluis.marsal@urv.cat mariadelpilar.montero@urv.cat josep.pallares@urv.cat osbel.almora@urv.cat
Author identifier: 0000-0002-5976-1408 0000-0001-7221-5383 0000-0002-2523-0203
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://pubs.acs.org/doi/10.1021/acsami.4c01154
Papper original source: Acs Applied Materials & Interfaces. 16 (13): 16317-16327
APA: Samir, Mohamed; Moustafa, Enas; Almora, Osbel; Ramirez-Como, Magaly; Pilar Montero-Rama, Maria; Sanchez, Jose G; Palomares, Emilio; Pallares, Josep; M (2024). CPE-Na-Based Hole Transport Layers for Improving the Stability in Nonfullerene Organic Solar Cells: A Comprehensive Study. Acs Applied Materials & Interfaces, 16(13), 16317-16327. DOI: 10.1021/acsami.4c01154
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1021/acsami.4c01154
Entity: Universitat Rovira i Virgili
Journal publication year: 2024
Publication Type: Journal Publications