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Ftouhi, H., Lamkaouane, H., Louarn, G., Diani, M., Bernede, J.-C., Addou, M. & Cattin, L. (2021) Investigation of aluminum phthalocyanine chloride as acceptor material in planar organic solar cells: comparative study with fullerene. J Mater Sci: Mater Electron, 138897. 
Added by: Richard Baschera (2021-10-28 08:00:17)   Last edited by: Richard Baschera (2021-10-28 08:01:43)
Type de référence: Article
DOI: 10.1007/s10854-021-07155-z
Numéro d'identification (ISBN etc.): 1573-482X
Clé BibTeX: Ftouhi2021
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Catégories: INTERNATIONAL, MIOPS
Créateurs: Addou, Bernede, Cattin, Diani, Ftouhi, Lamkaouane, Louarn
Collection: J Mater Sci: Mater Electron
Consultations : 18/108
Indice de consultation : 6%
Indice de popularité : 1.5%
Liens URLs     https://doi.org/10 ... s10854-021-07155-z
Résumé     
Aluminum Phthalocyanine Chloride (AlPcCl) is generally known as donor material in organic photovoltaic cells (OPVs). Nevertheless, in the present study we have demonstrated a successful use of AlPcCl as acceptor material to replace fullerene (C60) in a planar heterojunction OPVs based Alpha-Sexithiophene (α-6T) as donor material. For this purpose, we have elaborated two series of OPVs: α-6T/AlPcCl and α-6T/C60 using thermal sublimation technique. After the optimization of the AlPcCl thickness we have compared both solar cells current density vs. voltage characteristics, we have shown that the use of AlPcCl as acceptor instead of C60 induces to an increase in the open circuit voltage (Voc) and the short current density (Jsc) values by 18% and 23%, respectively, from 0.5 to 0.61 V and from 6.10 to 7.98 mA/cm2, while, we have obtained a decrease in the shunt resistance which has dropped the fill factor (FF) from 58 to 51%. The Voc and Jsc increase allows to increase the power conversion efficiency by 28%. These findings have been supported by absorbance measurements and morphological studies. The Voc and Jsc increase have been discussed and assigned to the difference between the theoretical Voc of both heterojunctions, and to the complimentary absorption of AlPcCl with α-6T. While, the FF deceases has been attributed to the low electron mobility of AlPcCl compared with C60. These findings, brought in the spotlight the potential of the metal phthalocyanines, which can open up a wide range of possibilities to test other materials based like this family.
  
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