Guili Wang, Wentian Wu, Chunxiao Li and Jiyong Yao
{"title":"稀土氧硫化物Eu2ZnGe2OS6：一种具有[GeOS3]单元†的相位匹配红外非线性光学材料","authors":"Guili Wang, Wentian Wu, Chunxiao Li and Jiyong Yao","doi":"10.1039/D4CE01051E","DOIUrl":null,"url":null,"abstract":"<p >Oxychalcogenides have been highly anticipated as nonlinear optical (NLO) crystals because of their excellent optical properties. Herein, a rare-earth oxychalcogenide Eu<small><sub>2</sub></small>ZnGe<small><sub>2</sub></small>OS<small><sub>6</sub></small> was successfully designed and synthesized. It crystallizes in the non-centrosymmetric <em>P</em><img>2<small><sub>1</sub></small><em>m</em> space group with highly polarized mixed-anion [GeOS<small><sub>3</sub></small>] units and exhibits an indirect band gap of 2.22 eV, a moderate second harmonic generation (SHG) response (0.4 × AGS), and phase-matching properties. Additionally, Eu<small><sub>2</sub></small>ZnGe<small><sub>2</sub></small>OS<small><sub>6</sub></small> exhibits a significant calculated birefringence of 0.173@2090 nm. This research has enriched the rarely studied rare-earth oxychalcogenide system and provided new ideas for the design of promising IR NLO crystals.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 47","pages":" 6683-6687"},"PeriodicalIF":2.4000,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ce/d4ce01051e?page=search","citationCount":"0","resultStr":"{\"title\":\"Rare-earth oxychalcogenide Eu2ZnGe2OS6: a phase-matching infrared nonlinear optical material with [GeOS3] units†\",\"authors\":\"Guili Wang, Wentian Wu, Chunxiao Li and Jiyong Yao\",\"doi\":\"10.1039/D4CE01051E\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Oxychalcogenides have been highly anticipated as nonlinear optical (NLO) crystals because of their excellent optical properties. Herein, a rare-earth oxychalcogenide Eu<small><sub>2</sub></small>ZnGe<small><sub>2</sub></small>OS<small><sub>6</sub></small> was successfully designed and synthesized. It crystallizes in the non-centrosymmetric <em>P</em><img>2<small><sub>1</sub></small><em>m</em> space group with highly polarized mixed-anion [GeOS<small><sub>3</sub></small>] units and exhibits an indirect band gap of 2.22 eV, a moderate second harmonic generation (SHG) response (0.4 × AGS), and phase-matching properties. Additionally, Eu<small><sub>2</sub></small>ZnGe<small><sub>2</sub></small>OS<small><sub>6</sub></small> exhibits a significant calculated birefringence of 0.173@2090 nm. This research has enriched the rarely studied rare-earth oxychalcogenide system and provided new ideas for the design of promising IR NLO crystals.</p>\",\"PeriodicalId\":70,\"journal\":{\"name\":\"CrystEngComm\",\"volume\":\" 47\",\"pages\":\" 6683-6687\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2024-11-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://pubs.rsc.org/en/content/articlepdf/2024/ce/d4ce01051e?page=search\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"CrystEngComm\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/ce/d4ce01051e\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"CrystEngComm","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ce/d4ce01051e","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Rare-earth oxychalcogenide Eu2ZnGe2OS6: a phase-matching infrared nonlinear optical material with [GeOS3] units†
Oxychalcogenides have been highly anticipated as nonlinear optical (NLO) crystals because of their excellent optical properties. Herein, a rare-earth oxychalcogenide Eu2ZnGe2OS6 was successfully designed and synthesized. It crystallizes in the non-centrosymmetric P21m space group with highly polarized mixed-anion [GeOS3] units and exhibits an indirect band gap of 2.22 eV, a moderate second harmonic generation (SHG) response (0.4 × AGS), and phase-matching properties. Additionally, Eu2ZnGe2OS6 exhibits a significant calculated birefringence of 0.173@2090 nm. This research has enriched the rarely studied rare-earth oxychalcogenide system and provided new ideas for the design of promising IR NLO crystals.
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