Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers
In this work, the use of poly [(9,9-bis (30- (N,N-dimethylamino) propyl) -2,7-fluorene) -alt-2,7- (9,9-dioctylfluorene) (PFN) as electron transport layer (ETL) in inverted small molecule solar cells (SM-iOSCs) is analyzed. The optical and electrical characteristics obtained are compared with those o...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Journal of the Electron Devices Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9750114/ |
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| author | Magaly Ramirez-Como Victor S. Balderrama Jose G. Sanchez Angel Sacramento Magali Estrada Josep Pallares Lluis F. Marsal |
| author_facet | Magaly Ramirez-Como Victor S. Balderrama Jose G. Sanchez Angel Sacramento Magali Estrada Josep Pallares Lluis F. Marsal |
| author_sort | Magaly Ramirez-Como |
| collection | DOAJ |
| description | In this work, the use of poly [(9,9-bis (30- (N,N-dimethylamino) propyl) -2,7-fluorene) -alt-2,7- (9,9-dioctylfluorene) (PFN) as electron transport layer (ETL) in inverted small molecule solar cells (SM-iOSCs) is analyzed. The optical and electrical characteristics obtained are compared with those obtained for similar SM-iOSCs where the ETL was zinc oxide. The p-DTS(FBTTh<sub>2</sub>)<sub>2</sub> and PC<sub>70</sub>BM materials are used as donor and acceptor in the bulk heterojunction active layer, respectively for all devices. The photovoltaic devices exhibited a power conversion efficiency of 6.75% under 1 sun illumination. Impedance measurements were used to understand the causes that dominate the performance of the devices. We found that the loss resistance is governed by the PFN layer, which results in a lower fill factor value. Studies of atomic force microscopy, external quantum efficiency, and absorption UV-vis on the active layer have been performed to understand the effects of the charge transport dynamics on the performance of the devices. |
| first_indexed | 2024-04-13T17:58:55Z |
| format | Article |
| id | doaj.art-8b34b1223bb4457dbb90ab09c223f0e3 |
| institution | Directory Open Access Journal |
| issn | 2168-6734 |
| language | English |
| last_indexed | 2024-04-13T17:58:55Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of the Electron Devices Society |
| spelling | doaj.art-8b34b1223bb4457dbb90ab09c223f0e32022-12-22T02:36:21ZengIEEEIEEE Journal of the Electron Devices Society2168-67342022-01-011043544210.1109/JEDS.2022.31653159750114Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport LayersMagaly Ramirez-Como0https://orcid.org/0000-0002-9313-8337Victor S. Balderrama1https://orcid.org/0000-0003-4617-0550Jose G. Sanchez2Angel Sacramento3https://orcid.org/0000-0001-5207-3154Magali Estrada4https://orcid.org/0000-0002-6244-6492Josep Pallares5https://orcid.org/0000-0001-7221-5383Lluis F. Marsal6https://orcid.org/0000-0002-5976-1408Departament d’Enginyeria Electronica Electrica i Automatica, Rovira i Virgili University, Tarragona, SpainCONACYT–Center for Engineering and Industrial Development (CIDESI), Microtechnology Division (DMT), Santiago de Querétaro, Querétaro, MexicoInstitute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, SpainDepartamento de Ingeniería Eléctrica, Sección de Electrónica del Estado Sólido, CINVESTAV-IPN, Mexico City, MexicoDepartamento de Ingeniería Eléctrica, Sección de Electrónica del Estado Sólido, CINVESTAV-IPN, Mexico City, MexicoDepartament d’Enginyeria Electronica Electrica i Automatica, Rovira i Virgili University, Tarragona, SpainDepartament d’Enginyeria Electronica Electrica i Automatica, Rovira i Virgili University, Tarragona, SpainIn this work, the use of poly [(9,9-bis (30- (N,N-dimethylamino) propyl) -2,7-fluorene) -alt-2,7- (9,9-dioctylfluorene) (PFN) as electron transport layer (ETL) in inverted small molecule solar cells (SM-iOSCs) is analyzed. The optical and electrical characteristics obtained are compared with those obtained for similar SM-iOSCs where the ETL was zinc oxide. The p-DTS(FBTTh<sub>2</sub>)<sub>2</sub> and PC<sub>70</sub>BM materials are used as donor and acceptor in the bulk heterojunction active layer, respectively for all devices. The photovoltaic devices exhibited a power conversion efficiency of 6.75% under 1 sun illumination. Impedance measurements were used to understand the causes that dominate the performance of the devices. We found that the loss resistance is governed by the PFN layer, which results in a lower fill factor value. Studies of atomic force microscopy, external quantum efficiency, and absorption UV-vis on the active layer have been performed to understand the effects of the charge transport dynamics on the performance of the devices.https://ieeexplore.ieee.org/document/9750114/Buffer layersdependence light intensityelectron transport layerimpedance spectroscopyorganic solar cellsp-DTS(FBTTh₂)₂:PC₇₀BM solar cells |
| spellingShingle | Magaly Ramirez-Como Victor S. Balderrama Jose G. Sanchez Angel Sacramento Magali Estrada Josep Pallares Lluis F. Marsal Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers IEEE Journal of the Electron Devices Society Buffer layers dependence light intensity electron transport layer impedance spectroscopy organic solar cells p-DTS(FBTTh₂)₂:PC₇₀BM solar cells |
| title | Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers |
| title_full | Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers |
| title_fullStr | Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers |
| title_full_unstemmed | Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers |
| title_short | Solution-Processed Small Molecule Inverted Solar Cells: Impact of Electron Transport Layers |
| title_sort | solution processed small molecule inverted solar cells impact of electron transport layers |
| topic | Buffer layers dependence light intensity electron transport layer impedance spectroscopy organic solar cells p-DTS(FBTTh₂)₂:PC₇₀BM solar cells |
| url | https://ieeexplore.ieee.org/document/9750114/ |
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