Birefringent crystals play a crucial role in the laser polarization of modern laser technologies.As a marvelous branch of optical materials,oxyhalides are attracting extensive interest for their suitable structures an...Birefringent crystals play a crucial role in the laser polarization of modern laser technologies.As a marvelous branch of optical materials,oxyhalides are attracting extensive interest for their suitable structures and diverse properties.Metal cations with lone pairs have proven advantageous for enhancing birefringence and extending the range of transmission.In this study,we comprehensively investigated the antimony(Ⅲ)oxyhalide system,Sb–O–X.Specifically,we systematically examined the impact of single-site substitution within a series of compounds,including SbOCl,Sb_(2)OCl_(4),Sb_(3)O_(4)F,Sb_(3)O_(4)I,Sb_(3)O_(4)Cl,Sb_(8)O_(11)Cl_(2),and Sb_(8)O_(11)Br_(2).The substitution of halogens led to significant alterations in the crystal structures,ranging from 0D isolated units to 2D layers,which are favorable for generating birefringences greater than 0.1.These findings underscore the potential of antimony oxyhalides for achieving the balance between birefringence and bandgap,and affirm the viability of single-site substitution as an effective strategy for discovering birefringent materials.展开更多
基金financially supported by the Key Research and Development Program of Xinjiang(2022B01023-3)Tianshan Talent Training Program(2023TSYCLJ0018)+3 种基金West Light Foundation of CAS(2020-XBQNXZ-002)National Natural Science Foundation of China(22335007,22361132544,U2003131)the High-level Professional and Technical Personnel of Xinjiang Autonomous RegionXinjiang Major Science and Technology Project(2021A01001).
文摘Birefringent crystals play a crucial role in the laser polarization of modern laser technologies.As a marvelous branch of optical materials,oxyhalides are attracting extensive interest for their suitable structures and diverse properties.Metal cations with lone pairs have proven advantageous for enhancing birefringence and extending the range of transmission.In this study,we comprehensively investigated the antimony(Ⅲ)oxyhalide system,Sb–O–X.Specifically,we systematically examined the impact of single-site substitution within a series of compounds,including SbOCl,Sb_(2)OCl_(4),Sb_(3)O_(4)F,Sb_(3)O_(4)I,Sb_(3)O_(4)Cl,Sb_(8)O_(11)Cl_(2),and Sb_(8)O_(11)Br_(2).The substitution of halogens led to significant alterations in the crystal structures,ranging from 0D isolated units to 2D layers,which are favorable for generating birefringences greater than 0.1.These findings underscore the potential of antimony oxyhalides for achieving the balance between birefringence and bandgap,and affirm the viability of single-site substitution as an effective strategy for discovering birefringent materials.
