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Lamkaouane, H., Ftouhi, H., Zazoui, M., Addou, M., Cattin, L., Bernede, J.-C., Louarn, G. & Mir, Y. (2021) Improvement of inverted planar heterojunction solar cells efficiency by using KI/Alq(3) hybrid exciton blocking layer. Solid-State Electronics, 186 108165.
Added by: Richard Baschera (2021-11-04 14:32:09) Last edited by: Richard Baschera (2021-11-04 14:33:34) |
| Type de référence: Article DOI: 10.1016/j.sse.2021.108165 Numéro d'identification (ISBN etc.): 0038-1101 Clé BibTeX: Lamkaouane2021 Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, MIOPS Mots-clés: exciton blocking layer, Hybrid thin film, Inverted organic solar cell, KI thin layer, planar heterojunction, Vacuum thermal deposition Créateurs: Addou, Bernede, Cattin, Ftouhi, Lamkaouane, Louarn, Mir, Zazoui Collection: Solid-State Electronics |
Consultations : 2/347
Indice de consultation : 10% Indice de popularité : 2.5% |
| Liens URLs https://www.scienc ... /S0038110121002082 |
| Résumé |
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The exciton blocking layer (EBL) as an interfacial layer is extremely critical in determining the organic photovoltaic cell (OPV) performances. Here, we studied inverted planar heterojunction solar cells PHJ-OPVs with the following configuration ITO/EBL/C60/CuPc/MoO3/Al. Upon the EBL functionality which can act as an exciton blocking layer and allows the electron collection at the cathode, we proposed the insertion of hybrid EBL consisted of KI/Alq3 thin layer. The Alq3 is known as an EBL due to its broad bandgap, whereas we found that when a thin layer of 1 nm of KI is introduced in ITO/Alq3 interface, the KI decomposed during the thermal deposition, and only potassium interacts and diffuses in the Alq3 layer, which effectively enhances the electrons collection at the ITO/C60 interfaces leading to the improvement of open-circuit voltage (Voc), and device power conversion efficiency by 36% than the device using Alq3 alone as EBL.
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