{"title":"三角形结构的Ln(HCOO)3 （Ln = Y, Gd, Ce, La）具有优异的紫外非线性光学性能","authors":"Xue Bai, Xin Wen, Chensheng Lin, Yuchen Yan, Xuemei Shi, Xue Cao, Jindong Chen, Guangsai Yang, Zhanggui Hu, Jiyang Wang, Ning Ye, Guang Peng","doi":"10.1002/smll.202412404","DOIUrl":null,"url":null,"abstract":"<p>Identifying an ideal structure is essential for developing outstanding nonlinear optical (NLO) crystals, which typically involve the selection of microscopic functional building blocks (FBUs) and constructing excellent crystal structures. This often presents significant challenges. Herein, the long-neglected <i>π</i>-conjugated [HCOO]<sup>−</sup> is selected as the UV NLO-active FBU, and a series of isomorphic anhydrous rare earth formates, Ln(HCOO)<sub>3</sub> (Ln = Y, Gd, Ce, and La) with the space group <i>R</i>3m, are synthesized and characterized. This crystal series exhibits a desired delicate balance between strong second-harmonic generation (SHG) effects (2.41–3.89 × KH<sub>2</sub>PO<sub>4</sub>), large band gaps (4.20–5.45 eV), and suitable birefringence (0.064–0.081@1064 nm). Besides, such a unique structure exhibits a significant structure-property correlation, revealing that the ionic radius of Ln<sup>3+</sup> is inversely related to the SHG effect, and a smaller ionic radius corresponds to stronger SHG effects.</p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 10","pages":""},"PeriodicalIF":13.0000,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ln(HCOO)3 (Ln = Y, Gd, Ce, and La) With Triangular Configuration Exhibits Excellent UV Nonlinear Optical Performance\",\"authors\":\"Xue Bai, Xin Wen, Chensheng Lin, Yuchen Yan, Xuemei Shi, Xue Cao, Jindong Chen, Guangsai Yang, Zhanggui Hu, Jiyang Wang, Ning Ye, Guang Peng\",\"doi\":\"10.1002/smll.202412404\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Identifying an ideal structure is essential for developing outstanding nonlinear optical (NLO) crystals, which typically involve the selection of microscopic functional building blocks (FBUs) and constructing excellent crystal structures. This often presents significant challenges. Herein, the long-neglected <i>π</i>-conjugated [HCOO]<sup>−</sup> is selected as the UV NLO-active FBU, and a series of isomorphic anhydrous rare earth formates, Ln(HCOO)<sub>3</sub> (Ln = Y, Gd, Ce, and La) with the space group <i>R</i>3m, are synthesized and characterized. This crystal series exhibits a desired delicate balance between strong second-harmonic generation (SHG) effects (2.41–3.89 × KH<sub>2</sub>PO<sub>4</sub>), large band gaps (4.20–5.45 eV), and suitable birefringence (0.064–0.081@1064 nm). Besides, such a unique structure exhibits a significant structure-property correlation, revealing that the ionic radius of Ln<sup>3+</sup> is inversely related to the SHG effect, and a smaller ionic radius corresponds to stronger SHG effects.</p>\",\"PeriodicalId\":228,\"journal\":{\"name\":\"Small\",\"volume\":\"21 10\",\"pages\":\"\"},\"PeriodicalIF\":13.0000,\"publicationDate\":\"2025-02-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Small\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/smll.202412404\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/smll.202412404","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Ln(HCOO)3 (Ln = Y, Gd, Ce, and La) With Triangular Configuration Exhibits Excellent UV Nonlinear Optical Performance
Identifying an ideal structure is essential for developing outstanding nonlinear optical (NLO) crystals, which typically involve the selection of microscopic functional building blocks (FBUs) and constructing excellent crystal structures. This often presents significant challenges. Herein, the long-neglected π-conjugated [HCOO]− is selected as the UV NLO-active FBU, and a series of isomorphic anhydrous rare earth formates, Ln(HCOO)3 (Ln = Y, Gd, Ce, and La) with the space group R3m, are synthesized and characterized. This crystal series exhibits a desired delicate balance between strong second-harmonic generation (SHG) effects (2.41–3.89 × KH2PO4), large band gaps (4.20–5.45 eV), and suitable birefringence (0.064–0.081@1064 nm). Besides, such a unique structure exhibits a significant structure-property correlation, revealing that the ionic radius of Ln3+ is inversely related to the SHG effect, and a smaller ionic radius corresponds to stronger SHG effects.
期刊介绍：
Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments.
With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology.
Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.
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