Mahdi Gassara, José Garcés-Garcés, Luis Lezama, Javier Ortiz, Fernando Fernández-Lázaro, Samrana Kazim, Ángela Sastre-Santos and Shahzada Ahmad
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引用次数: 0
Abstract
We synthesized molecular hole-transporting materials (HTMs) featuring a zinc phthalocyanine (ZnPc) central core and modulated the non-peripheral position with different numbers of tert-butyl groups. The synthesized molecules were then integrated into the fabrication of perovskite solar cells to evaluate their efficacy. We studied four different undoped ZnPcs with four (ZnPc 1), three (ZnPc 2), two (ZnPc 3), and one (ZnPc 4) tert-butyl group as hole transport materials in the n–i–p configuration. Among them, ZnPc 1 registered the best power conversion efficiency of 15.50%, an open-circuit voltage (Voc) of 932.9 mV, a short-circuit current density (Jsc) of 24.26 mA cm−2, and a fill factor (FF) of 68.46%. This was followed by ZnPc 2 which achieved a modest 7.98% performance. The surface microstructure is greatly influenced by the type of molecule and it evolves from a compact granular to a fibrillar structure. Furthermore, the devices with ZnPc 1 showed enhanced stability under an ambient atmosphere comparable to Spiro-OMeTAD.
期刊介绍:
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors