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Abstract Electrically driven light‐emitting diodes (ED LEDs) based on 3D metal halide perovskites have seen remarkable advancements during the past decade. However, the highest‐performing devices are largely based on lead‐containing 3D perovskites, presenting two key challenges – toxicity and stability – that must be addressed for commercialization. Reducing structural dimensionality and incorporating non‐lead metals present promising pathways to address these issues. Although research on ED LEDs based on low‐dimensional, lead‐free metal halides (LD LFMHs) is growing, their performance still significantly lags behind that of 3D lead halide perovskites. This review seeks to deliver a comprehensive overview of ED LEDs based on LD LFMHs, covering a brief history of their development, methods for material synthesis, luminescence mechanisms, and applications in electroluminescent devices. It also examines current challenges and proposes practical strategies to enhance device performance, with the goal of inspiring further progress in the field.
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Solvent‐Free Fabrication Methods of Metal Halide Perovskites
Abstract Metal halide perovskites have ascended as a remarkable class of materials in recent years, demonstrating exceptional promise for application in various electronic and optoelectronic devices. The vast majority of research on these materials focuses on their processing from solution, which is relatively easily executed in laboratory settings, but its scalability for industrial mass production remains a significant hurdle. Furthermore, its reliance on highly toxic solvents imposes limitations with respect to large‐area fabrication and have a negative environmental impact. This review comprehensively explores the current status of solvent‐free fabrication methods for metal halide perovskites, outlines the current challenges and opportunities, and provides a critical assessment of the technological readiness and future research directions. The development of robust and scalable solvent‐free fabrication methodologies is essential to realizing the full potential of metal halide perovskites. We hope that this review will serve as a catalyst, inspiring and guiding researchers to explore new strategies for the solvent‐free deposition of these remarkable materials, thereby expediting their integration into technological applications.
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- Award ID(s):
- 2135937
- PAR ID:
- 10640177
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Advanced Materials
- Volume:
- 37
- Issue:
- 40
- ISSN:
- 0935-9648
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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