Advancements in Photovoltaic Cell Materials: Silicon, Organic, and Perovskite Solar Cells

Machín, Abniel; Márquez, Francisco

doi:10.3390/ma17051165

“…This was due to their lower optical absorption coefficients. Recently, experimental values for methylammonium-formamidinium-based perovskite cells exceeded 20%, with the highest recorded value reaching 26.00%, approaching its theoretical maximum limit efficiency [29,30]. Although SLME does not consider factors such as carrier mobility and intrinsic defects in actual thin films, our work still reveals the application potential of these hybrid gold-based perovskite derivatives, laying the foundation for future research on their practical applications.…”

Section: First-principles Calculationsmentioning

confidence: 84%

Hybrid Gold-Based Perovskite Derivatives: Synthesis, Properties, and Prospects in Photovoltaics

Liu,

Fu,

Nan

et al. 2024

Inorganics

0

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Hybrid gold-based perovskite derivatives typically exhibit low optical bandgaps and high optical absorption coefficients, rendering them promising for photovoltaic applications. In this study, we successfully synthesized six new hybrid gold-based perovskite derivatives, namely [(C6H8N2)(AuI4)(AuI2)](3AMPY), [(C6H14N2)(AuI4)(AuI2)](3AMP), [(C8H12N)(AuI4)](2PEAI), [(C4H14N2O)(AuI4)2](OBA), [(C6H18N2O2)3(AuI4)4(I3)2](DDA), and [(C10H26N2O3)(AuI4)(I3)](TOTA), through a straightforward and efficient hydrothermal method, achieving millimeter-sized single crystals. The structural analysis of the single crystals revealed variations in crystal structures arising from differences in constituent units and their spatial positioning relationships. First-principles calculations ascertained their high optical absorption coefficients in the visible light spectrum and indirect bandgap properties. Theoretical models indicated that the spectroscopic limited maximum efficiency (SLME) values of 3AMPY, 2PEAI, DDA, and TOTA approached approximately 30% in films of 0.5 μm thickness, signifying their potential candidacy as solar cell absorbers.

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Ligand Assisted Hydrogen Bonding: A Game‐Changer in Lead Passivation and Stability in Perovskite Solar Cells

Ahmed,

Rehman,

Chen

et al. 2024

Angewandte Chemie

0

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Lead halide perovskite solar cells (PSCs) have demonstrated power conversion efficiencies comparable to silicon‐based solar cells, yet their instability under environmental stressors, such as humidity, heat, and light, remains a significant barrier to commercialization. A primary cause of this instability is the uncoordinated lead ions (Pb2+), which accelerates the degradation of PSCs and pose environmental concerns due to potential lead leakage. Recently, the introduction of ligands into PSCs has shown promise in mitigating lead toxicity through effective passivation, primarily by forming hydrogen bonds (H‐bonds) between functional groups of the ligands and the perovskite structure. In this minireview, we explore the critical role of H‐bonds in stabilizing PSCs by enhancing the structural integrity of the perovskite layer and reducing lead leakage. Furthermore, we discuss the contribution of these ligands in defect passivation, hydrophobicity, self‐encapsulation, cross‐linking, and self‐healing mechanisms. These insights will highlight the multi‐functional capabilities of ligands in improving the long‐term stability and durability of PSCs, offering pathways to address current challenges in their commercialization.

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Ligand Assisted Hydrogen Bonding: A Game‐Changer in Lead Passivation and Stability in Perovskite Solar Cells

Ahmed,

Rehman,

Chen

et al. 2024

Angew Chem Int Ed

0

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Lead halide perovskite solar cells (PSCs) have demonstrated power conversion efficiencies comparable to silicon‐based solar cells, yet their instability under environmental stressors, such as humidity, heat, and light, remains a significant barrier to commercialization. A primary cause of this instability is the uncoordinated lead ions (Pb2+), which accelerates the degradation of PSCs and pose environmental concerns due to potential lead leakage. Recently, the introduction of ligands into PSCs has shown promise in mitigating lead toxicity through effective passivation, primarily by forming hydrogen bonds (H‐bonds) between functional groups of the ligands and the perovskite structure. In this minireview, we explore the critical role of H‐bonds in stabilizing PSCs by enhancing the structural integrity of the perovskite layer and reducing lead leakage. Furthermore, we discuss the contribution of these ligands in defect passivation, hydrophobicity, self‐encapsulation, cross‐linking, and self‐healing mechanisms. These insights will highlight the multi‐functional capabilities of ligands in improving the long‐term stability and durability of PSCs, offering pathways to address current challenges in their commercialization.

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Advancements in Photovoltaic Cell Materials: Silicon, Organic, and Perovskite Solar Cells

Cited by 27 publications

References 162 publications

Hybrid Gold-Based Perovskite Derivatives: Synthesis, Properties, and Prospects in Photovoltaics

Hybrid Gold-Based Perovskite Derivatives: Synthesis, Properties, and Prospects in Photovoltaics

Ligand Assisted Hydrogen Bonding: A Game‐Changer in Lead Passivation and Stability in Perovskite Solar Cells

Ligand Assisted Hydrogen Bonding: A Game‐Changer in Lead Passivation and Stability in Perovskite Solar Cells

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