Emergent updates and future directions on white light emitting diodes based on luminous lead-free halide perovskites

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2024-11-06 DOI:10.1016/j.matlet.2024.137671

Prashant Kumar , Manish Kumar , Dharm Veer Singh , Samiksha Dabas , D.K. Dwivedi

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Abstract

Lead halide perovskites possess exceptional optical and electrical properties, yet their inherent toxicity and instability present significant challenges for practical application in white light-emitting diodes (WLEDs) for displays and lighting. Alhough, techniques such as reduced dimensionality, transition metal doping, and protective encapsulation have shown some success in enhancing stability. These advancements remain limited and do not fully meet the requirements for real-world WLED devices. This featured letter delves into the emerging advancements in lead-free halide perovskite WLEDs includes color-conversion WLEDs, and single-emissive-layer WLEDs. Despite significant advancements, issues with stability, efficiency, and scalable fabrication still exist. Future approaches centre on methods to enhance these features, opening the door for lead-free perovskite WLEDs to become commercially viable and bringing in a new age of environmentally friendly lighting options. Additionally, this featured letter provides a comprehensive review of the current advancements and future possibilities in WLEDs based on lead-free halide perovskites materials. This letter serves as an invaluable resource for researchers, scientists, and engineers dedicated to advancing this field.

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基于发光无铅卤化物过氧化物的白光发光二极管的最新进展和未来方向

卤化铅包晶石具有优异的光学和电学特性，但其固有的毒性和不稳定性给显示和照明用白光发光二极管（WLED）的实际应用带来了巨大挑战。尽管降低尺寸、掺杂过渡金属和保护性封装等技术在提高稳定性方面取得了一些成功。但这些进展仍然有限，不能完全满足实际 WLED 器件的要求。这封特写信件深入探讨了无铅卤化物包晶 WLED 的新进展，包括色彩转换 WLED 和单发光层 WLED。尽管取得了重大进展，但仍存在稳定性、效率和可扩展制造方面的问题。未来的研究重点是如何增强这些特性，从而为无铅包晶 WLED 的商业化打开大门，并将环保照明带入一个新时代。此外，这封特写信件还全面回顾了基于无铅卤化物包晶材料的 WLED 目前的进展和未来的可能性。对于致力于推动这一领域发展的研究人员、科学家和工程师来说，这封信是非常宝贵的资源。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive