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請使用永久網址來引用或連結此文件:
https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/120777
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題名: | A3BBi(P2O7)2 (A = Rb, Cs;B = Pb, Ba): Isovalent Cation Substitution to Sustain Large Second-Harmonic Generation Responses |
作者: | Qi, Lu;Chen, Zhaohui;Shi, Xuerui;Zhang, Xiaodong;Jing, Qun;Li, Na;Jiang, Zhongqi;Zhang, Bingbing;Lee, Ming-Hsien |
日期: | 2020-10-13 |
上傳時間: | 2021-05-07 12:10:31 (UTC+8) |
摘要: | Exploring novel photoelectric functional materials via chemical substitution-oriented design is an effective strategy, which can be expanded to the discovery of high-performance UV nonlinear optical (NLO) materials. Two new NLO pyrophosphates, Rb3BaBi(P2O7)2 (I) and Cs3BaBi(P2O7)2 (II), are rationally developed by a cation substitution technique based on A3PbBi(P2O7)2 (A = Rb and Cs), of which I inherits the large second-harmonic generation (SHG) response (exptl 2.5 × KDP; calcd 2.9 × KDP) and moderate birefringence (0.025@1064 nm) accompanied by a broadened UV transparent region. Compounds I and II are isomeric and exhibit different Ba–P–O frameworks. Especially, I possesses a large SHG effect benefiting from the favorable pentagonal-net topological structure. Detailed theory calculations elucidate the origin of the linear and nonlinear optical properties of the compounds. The insights obtained from the atomic-level module adjustment involving lone-pair-active optical anisotropy are useful for designing more efficient UV NLO materials. |
關聯: | Chemistry of Materials 32(19), p.8713-8723 |
DOI: | 10.1021/acs.chemmater.0c03383 |
顯示於類別: | [物理學系暨研究所] 期刊論文
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