Growth and Properties of Photovoltaic Materials

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Materials for Energy Applications".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 557

Special Issue Editors


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Guest Editor
Department of Physics, Natural and Applied Sciences, University of Wisconsin-Green Bay, Green Bay, WI 54311, USA
Interests: DFT; multiferroics heterostructures; photovoltaic materials; rechargeable ion batteries; transport calculations

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Guest Editor
Dipartimento di Fisica e Astronomia, Università di Padova, Via Marzolo 8, 35131 Padova, Italy
Interests: charge transport in ferroelectric oxides; optical coatings; integrated photonics; gravitational wave science; materials characterization
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Special Issue Information

Dear Colleagues,

The "Growth and Properties of Photovoltaic Materials" Special Issue serves as a pivotal platform for the exploration of solar energy technology. Photovoltaics, an essential component of our sustainable energy future, is at the forefront of a global shift toward cleaner energy sources. This Special Issue acts as a repository of knowledge, uniting experts, scientists, and engineers in their shared mission to advance our understanding and application of photovoltaic materials.

In essence, this Special Issue delves into the art of material growth, striking a balance between precision and innovation. Crafting high-performance photovoltaic materials is a delicate process of achieving crystalline perfection while preserving energy efficiency. Articles within this Special Issue illuminate crystal growth techniques, from vapor deposition to solution-based methods, crucial for robust solar cell development.

This exploration extends to core material properties. Material characterization, covering structural, optical, and electrical aspects, unveils molecular intricacies, paving the way for improved photovoltaic efficiency. Investigating semiconductor properties provides insights into charge separation and transport mechanisms, essential to solar cell operation.

The Special Issue also highlights thin-film solar cells and sustainable technologies for energy conversion. We invite experts, scholars, and practitioners to contribute their findings and insights, bridging the gap between theory and practical applications in the dynamic world of photovoltaic materials.

Dr. Mahmoud H. Hammouri
Dr. Marco Bazzan
Guest Editors

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Keywords

  • photovoltaic materials
  • solar energy
  • crystal growth
  • semiconductor properties
  • energy conversion

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Published Papers (1 paper)

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Research

23 pages, 18931 KiB  
Article
Unveiling the Electrochemical Kinetics of an FeWO4-NiFeOOH Anode: Electrolyte Effects on Energy Conversion
by Itheereddi Neelakanta Reddy, Sarath Chandra Veerla, Bhargav Akkinepally, Moorthy Dhanasekar, Jaesool Shim and Cheolho Bai
Crystals 2025, 15(4), 345; https://doi.org/10.3390/cryst15040345 - 6 Apr 2025
Viewed by 194
Abstract
This study aims to determine the electrochemical performance of FeWO4 (Fe), NiFeOOH (Ni), and FeWO4/NiFeOOH (FeNi) electrodes in 0.1 M Na2SO4 and 0.1 M NaOH electrolytes, highlighting the impact of SO42− and OH ions. [...] Read more.
This study aims to determine the electrochemical performance of FeWO4 (Fe), NiFeOOH (Ni), and FeWO4/NiFeOOH (FeNi) electrodes in 0.1 M Na2SO4 and 0.1 M NaOH electrolytes, highlighting the impact of SO42− and OH ions. Nyquist analysis demonstrated that the FeWO4/NiFeOOH electrode had the lowest charge transfer resistance, indicating superior charge transport and capacitive performance over the individual electrodes. In Na2SO4, SO42− ions stabilized double-layer capacitance and enhance ionic mobility. Conversely, in NaOH, highly conductive and mobile OH ions significantly improved charge transfer and diffusion, making NaOH more effective for electrochemical applications. Tafel analysis revealed better charge transfer kinetics and greater energy efficiency in NaOH, with the composite electrode excelling in both electrolytes. Linear voltammetry showed a synergistic interaction between FeWO4 and NiFeOOH, achieving a photocurrent density of 6.70 mA·cm−2 in NaOH under illumination, an 830.56% increase over Na2SO4. Additionally, the FeWO4/NiFeOOH composite electrode exhibited longer electron lifetimes in NaOH than in Na2SO4, attributed to the smaller ionic radius and higher diffusion coefficient of OH ions. Pulsed photocurrent analysis revealed notable improvements in photocurrent generation and stability in NaOH. These findings indicate that the FeWO4/NiFeOOH composite is a highly efficient and stable material for advanced energy technologies, with NaOH providing optimal performance conditions. Full article
(This article belongs to the Special Issue Growth and Properties of Photovoltaic Materials)
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