Light-Emitting Materials and Devices: Design, Characterization, and Applications of Optoelectronics and Sensing

Dear Colleagues,

Light-emitting materials and devices have been at the forefront of technological advancements across optoelectronics, communication, health care, and sensing applications. Over recent decades, the development of novel luminescent materials—including organic semiconductors, carbon nanodots, quantum dots, and perovskites—has opened up new opportunities for designing highly efficient, flexible, and tunable light-emitting devices. These materials have led to innovations in devices such as light-emitting diodes (LEDs), laser diodes, and advanced optical sensors.

Recent progress in nanofabrication techniques and device architecture design has significantly enhanced the performance and multi-functionality of these systems. At the same time, challenges remain in achieving long-term operational stability, scalable manufacturing, and environmentally sustainable processes. Understanding the fundamental photophysical mechanisms through advanced characterization methods is crucial for optimizing efficiency, lifetime, and functionality of light-emitting materials and devices.

This Special Issue invites contributions from researchers working on the cutting edge of material development and device fabrication. We welcome original research articles, comprehensive reviews, and case studies that address challenges and opportunities in this dynamic field, aiming to bridge fundamental science with technological innovation.

Recommended topics include, but are not limited to, the following:

• Synthesis of light-emitting materials:
• Organic, inorganic, hybrid, and perovskite emitters;
• Quantum dots and carbon dots.
• Design and fabrication of light-emitting devices:
• OLEDs, QD-LEDs, and perovskite LEDs;
• Laser diodes and novel luminescent devices.
• Characterization techniques for light-emitting materials and devices:
• Spectroscopic analysis;
• Time-resolved photoluminescence;
•  Imaging;
• Light-emitting materials for sensing applications:
• Optical sensors based on luminescence changes;
• Bio-sensing and environmental monitoring.

We encourage submissions that combine theoretical, experimental, and computational approaches and those that explore interdisciplinary applications of light-emitting materials and technologies.

We look forward to receiving your valuable contributions.

Dr. Chiara Olla
Dr. Cheng-Ao Yang
Dr. Qinghua Wang
Prof. Dr. Yiping Cao
Guest Editors

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