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Rodríguez-Seco C, Méndez M, Roldán-Carmona C, Cabau L, Asiri AM, Nazeeruddin MK, Palomares E. Benzothiadiazole Aryl-amine Based Materials as Efficient Hole Carriers in Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32712-32718. [PMID: 32585085 DOI: 10.1021/acsami.0c07586] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Four hole transport materials (HTMs) based on a benzothiadiazole (BT) central core have been synthesized and successfully employed in triple-cation mixed-halide perovskite solar cells (PSCs), reaching 18.05% solar to energy conversion efficiency. The synthesis of these HTMs follows the push-and-pull approach to modulate the HOMO energy level by combining the BT group as an electron acceptor and diphenyl- and triphenyl-amines as electron donors. Here we show that despite adjusting the HOMO energy level to that of the perovskite is a believed requisite to achieve efficient interfacial hole transfer, additional factors must be taken into account to design novel and efficient HTMs, such as a high hole mobility, solubility in organic solvents, and thermal stability.
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Affiliation(s)
- Cristina Rodríguez-Seco
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology (ICIQ-BIST), Avda. Països Catalans, 16, E-43007 Tarragona, Spain
- Departament d'Enginyeria Electrònica, Elèctrica i Automàtica, Rovira i Virgili University, Avda. Països Catalans, 26, E-43007 Tarragona, Spain
| | - Maria Méndez
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology (ICIQ-BIST), Avda. Països Catalans, 16, E-43007 Tarragona, Spain
| | - Cristina Roldán-Carmona
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1951 Sion, Switzerland
| | - Lydia Cabau
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology (ICIQ-BIST), Avda. Països Catalans, 16, E-43007 Tarragona, Spain
| | - Abdullah M Asiri
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, 21589 Jeddah, Saudi Arabia
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1951 Sion, Switzerland
| | - Emilio Palomares
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology (ICIQ-BIST), Avda. Països Catalans, 16, E-43007 Tarragona, Spain
- Catalan Institution for Research and Advanced Studies, Passeig Lluís Companys, 23, E-08010 Barcelona, Spain
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Prakash G, Subramanian K. Interaction of pyridine π-bridge-based poly(methacrylate) dyes for the fabrication of dye-sensitized solar cells with the influence of different strength phenothiazine, fluorene and anthracene sensitizers as donor units with new anchoring mode. NEW J CHEM 2018. [DOI: 10.1039/c8nj04068k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and low-cost approach for the synthesis of three novel propeller-shaped (D2)–π–A type organic polymer dyes has been developed; a new acceptor and π-bridge (PYN) were used to tune the photoelectric properties: DFT studies.
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Affiliation(s)
- Gopi Prakash
- Department of Chemistry
- Anna University
- Chennai-600025
- India
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