Jingfang Zhou, Qian Wu, Aimin Ji, Zhen Jia, Mingjun Xia
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引用次数: 0
Abstract
The pursuit of second-order nonlinear optical (NLO) materials for mid-infrared (mid-IR, 3–5 μm) applications has been a significant research frontier due to their potential in optoelectronic technologies. In this review, we focus on noncentrosymmetric (NCS) molybdenum/tungsten tellurites incorporating d0 transition metal cations (Mo6+/W6+) and Te4+ cation with stereo-chemically active lone electron pair, which are prone to the second-order Jahn-Teller (SOJT) distortions. These compounds exhibit exceptional NLO effects, high optical transmittance in the 3–5 μm range, moderate birefringence, and ease of crystal growth in ambient conditions. Furthermore, they possess wider band gaps compared to conventional mid-IR NLO materials like metal phosphides and chalcogenides, enhancing their laser damage resistances. We categorize the notable NCS molybdenum/tungsten tellurites into nine series based on their cationic types, concentrating on ternary and quaternary systems. The review outlines their synthesis methods, crystal structures, growth techniques, and physical properties, with an emphasis on the relationship between SOJT-active units, NCS structures, and NLO performances. This work provides a clear perspective on the understanding of these materials and aims to accelerate the exploration of high-performance mid-IR NLO crystals to meet the increasing technological demands.
期刊介绍:
ACS Medicinal Chemistry Letters is interested in receiving manuscripts that discuss various aspects of medicinal chemistry. The journal will publish studies that pertain to a broad range of subject matter, including compound design and optimization, biological evaluation, drug delivery, imaging agents, and pharmacology of both small and large bioactive molecules. Specific areas include but are not limited to:
Identification, synthesis, and optimization of lead biologically active molecules and drugs (small molecules and biologics)
Biological characterization of new molecular entities in the context of drug discovery
Computational, cheminformatics, and structural studies for the identification or SAR analysis of bioactive molecules, ligands and their targets, etc.
Novel and improved methodologies, including radiation biochemistry, with broad application to medicinal chemistry
Discovery technologies for biologically active molecules from both synthetic and natural (plant and other) sources
Pharmacokinetic/pharmacodynamic studies that address mechanisms underlying drug disposition and response
Pharmacogenetic and pharmacogenomic studies used to enhance drug design and the translation of medicinal chemistry into the clinic
Mechanistic drug metabolism and regulation of metabolic enzyme gene expression
Chemistry patents relevant to the medicinal chemistry field.