Synthesis, Characterization and Application of Optoelectronic Materials

Dear Colleagues,

Optoelectronic materials, which are capable of efficient light–matter interaction, are the cornerstone of modern photonic and electronic technologies. Their ability to convert, emit, or detect light enables a wide range of applications, from high-efficiency solar cells and advanced displays to ultrasensitive sensors and next-generation communication systems. The performance of devices based on these materials is critically dependent on their synthesis, which determines the morphology, crystallinity, and defect structure, as well as on the subsequent characterization and integration processes that define the final device architecture and functionality. Therefore, a deep understanding of the interrelationships between material synthesis, structural/photophysical properties, and device performance is essential for driving innovation in this field.

While significant progress has been made, the rapid evolution of this field presents ongoing challenges, such as achieving precise control over material properties at the nanoscale, developing scalable and sustainable synthesis methods, and integrating disparate materials into multifunctional, high-performance devices. This Special Issue, “Synthesis, Characterization and Application of Optoelectronic Materials,” is launched with a unique perspective that bridges the gap between fundamental material discovery and practical device engineering. It specifically emphasizes the innovation that emerges from the cycle of “synthesis → characterization → application → feedback-informed design.”

We believe that addressing current bottlenecks requires a holistic approach. Therefore, this Special Issue seeks to curate high-quality research that not only reports advances in individual areas but also explores the feedback mechanisms and design principles that connect them. We aim to highlight work whose characterization guides the synthesis of optoelectronic materials, ultimately leading to optimized device performance for targeted applications.

This Special Issue seeks high-quality research and review articles focusing on the latest advances in this dynamic area. Topics of interest include, but are not limited to, the following:

• Novel synthesis and fabrication methods for optoelectronic materials (e.g., perovskites, quantum dots, 2D materials, organic semiconductors);
• Advanced in situ characterization techniques for probing the structural, optical, and electronic properties of these materials;
• Design, fabrication, and optimization of optoelectronic devices such as solar cells, light-emitting diodes (LEDs), photodetectors, lasers, and micro-energy harvesters (e.g., triboelectric/piezoelectric nanogenerators);
• Multimodal and correlative studies that establish structure-property-device performance relationships;
• Machine learning-assisted material discovery, characterization data analysis, and device applications;
• Emerging applications in energy harvesting, sensing, imaging and display, information technology, and wearable electronics.

We welcome contributions that provide fundamental insights, report innovative methodologies, or explore cutting-edge applications of optoelectronic materials.

Dr. Kun Wang
Prof. Dr. Chaoxing Wu
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• optoelectronic materials
• material synthesis
• characterization
• photodetectors
• solar cells
• light-emitting diodes (LEDs)
• triboelectric nanogenerator
• device fabrication
• energy harvesting