Ultrafast chirality-dependent dynamics from helicity-resolved transient absorption spectroscopy

IF 5.8 3区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Nanoscale Pub Date : 2024-12-26 DOI:10.1039/D4NR03682D
Xiu Zhang, Lu Zhang, Junzhi Zhu, Tingxiao Qin, Haiyun Huang, Baixu Xiang, Haiyun Liu and Qihua Xiong
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Abstract

Chirality, a pervasive phenomenon in nature, is widely studied across diverse fields including the origins of life, chemical catalysis, drug discovery, and physical optoelectronics. The investigations of natural chiral materials have been constrained by their intrinsically weak chiral effects. Recently, significant progress has been made in the fabrication and assembly of low-dimensional micro and nanoscale chiral materials and their architectures, leading to the discovery of novel optoelectronic phenomena such as circularly polarized light emission, spin and charge flip, advocating great potential for applications in quantum information, quantum computing, and biosensing. Despite these advancements, the fundamental mechanisms underlying the generation, propagation, and amplification of chirality in low-dimensional chiral materials and architectures remain largely unexplored. To tackle these challenges, we focus on employing ultrafast spectroscopy to investigate the dynamics of chirality evolution, with the aim of attaining a more profound understanding of the microscopic mechanisms governing chirality generation and amplification. This review thus provides a comprehensive overview of the chiral micro-/nano-materials, including two-dimensional transition metal dichalcogenides (TMDs), chiral halide perovskites, and chiral metasurfaces, with a particular emphasis on the physical mechanism. This review further explores the advancements made by ultrafast chiral spectroscopy research, thereby paving the way for innovative devices in chiral photonics and optoelectronics.

Abstract Image

螺旋分辨瞬态吸收光谱的超快手性相关动力学
手性是自然界普遍存在的一种现象,在生命起源、化学催化、药物发现、物理光电子学等多个领域都有广泛的研究。天然手性材料固有的弱手性效应限制了它们的研究。近年来,低维微纳米级手性材料及其结构的制备和组装取得了重大进展,发现了圆偏振光发射、自旋和电荷翻转等新型光电现象,在量子信息、量子计算和生物传感等领域具有巨大的应用潜力。尽管取得了这些进展,但低维手性材料和结构中手性的产生、传播和放大的基本机制仍未被探索。为了应对这些挑战,我们专注于使用超快光谱来研究手性演化的动力学,目的是更深入地了解手性产生和放大的微观机制。本文综述了二维过渡金属二硫族化合物(TMDs)、手性卤化物钙钛矿、手性超表面等手性微/纳米材料的研究进展,并着重介绍了其物理机理。本文将进一步探讨超快手性光谱学研究的进展,从而为手性光子学和光电子学的创新器件铺平道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nanoscale
Nanoscale CHEMISTRY, MULTIDISCIPLINARY-NANOSCIENCE & NANOTECHNOLOGY
CiteScore
12.10
自引率
3.00%
发文量
1628
审稿时长
1.6 months
期刊介绍: Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.
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