Título : Dopant-free Tert-butyl Zn (II) Phthalocyanines: Impact of Substitution on Photo-Physical Properties in Their Role in
Perovskite Solar Cells |
Autor : Gassara, Mahdi Garcés-Garcés, José Lezama, Luis Ortiz, Javier Fernández-Lázaro, Fernando Kazim, Samrana Sastre-Santos, Ángela Ahmad, Shahzada |
Editor : Royal Society of Chemistry |
Departamento: Departamentos de la UMH::Farmacología, Pediatría y Química Orgánica |
Fecha de publicación: 2024-11-13 |
URI : https://hdl.handle.net/11000/33858 |
Resumen :
We synthesized molecular hole-transporting materials (HTMs) featuring a zinc phthalocyanine (ZnPc) central core and modulated the non-perypheral position with different numbers of tert-butyl groups. The synthesized molecules were also integrated into the fabrication of perovskite solar cells to evaluate their efficacy. We studied four undoped different ZnPcs with four (ZnPc 1), three (ZnPc 2), two (ZnPc 3), and one (ZnPc 4) tert-butyl group as hole transport material in n-i-p configuration. Among them, ZnPc 1 registered the best power conversion efficiency with 15.50%, an open-circuit voltage (Voc) of 932.9 mV, a short-circuit current density (Jsc) of 24.26 mA/cm2, and a fill factor (FF) of 68.46%. This was followed by ZnPc 2 which achieved a modest 7.98% of performance. The surface microstructure is greatly influenced by the type of molecules and it evolves from compact granular to fibril structure. Furthermore, the devices with ZnPc 1 showed enhanced stability under an ambient atmosphere comparable to Spiro-OMeTAD.
|
Área de conocimiento : CDU: Ciencias puras y naturales: Química |
Tipo de documento : info:eu-repo/semantics/article |
Derechos de acceso: info:eu-repo/semantics/closedAccess |
DOI : https://doi.org/10.1039/D4TC04013A |
Aparece en las colecciones: Artículos Farmacología, Pediatría y Química Orgánica
|