Oxyhalides: prospecting ore for optical functional materials with large laser damage thresholds
Yang, ZH (Yang, Zhihua); Hu, C (Hu, Cong); Mutailipu, M (Mutailipu, Miriding); Sun, YZ (Sun, Yanzhou); Wu, K (Wu, Kui); Zhang, M (Zhang, Min); Pan, SL (Pan, Shilie)
2018
发表期刊JOURNAL OF MATERIALS CHEMISTRY C
ISSN2050-7526
卷号6期号:10页码:2435-2442
摘要

As a significant category of optical functional materials, nonlinear optical (NLO) materials play a key role in the laser field, and exploring and screening potential NLO candidate materials are crucial for material design. The main challenge for exploring NLO materials is how to balance the contradiction among the NLO quality factors in one compound: band gaps, laser damage thresholds, birefringences, second harmonic generation (SHG) responses and infrared-cutoff edges (especially for the infrared range). In this research work, a series of oxyhalide materials that have superiorities over chalcogenides in open-system growth conditions are studied theoretically and experimentally. Combining experimental measurement and first-principles calculation, we find that bismuth oxyhalides can achieve wide IR absorption edges extending to the important atmospheric window (8-14 mu m), relatively large band gaps (2-4 eV) and large laser damage thresholds. Inversely, alkaline-metal oxyhalides can reach the deep ultraviolet (UV) region with cutoff edges shorter than 200 nm. The oxyhalides with comparable SHG intensities with the UV benchmark KH2PO4 and IR application benchmark crystal AgGaS2 are analyzed, and this shows that enhancing the intensity of NLO activity and densities of active units is one way to enlarge SHG responses. The NLO phenomenon is exemplified in bismuth oxyhalides since large orbital hybridization interactions of (O-p, Bi-sp) are induced by the stereochemical activity of lone pairs. Besides, owing to the anisotropy distribution of electronic density, bismuth oxyhalides exhibit suitable birefringence, meeting the phase matching conditions. And especially, BiOCl demonstrates a large birefringence (>0.2), making it a potential birefringence material. It is also revealed that the criticism for the NLO quality factors can be met by controlling the metal cation, halide ion, and the ratio of metal and oxygen. The balance among NLO quality factors (band gaps, SHG effects, birefringences, etc.) proves that oxyhalides are competitive and promising candidates with large laser damage thresholds for potential application in the NLO field.

DOI10.1039/c7tc04857b
收录类别SCI
WOS记录号WOS:000428997500004
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5274
专题中国科学院特殊环境功能材料与器件重点试验室
材料物理与化学研究室
通讯作者Yang, ZH (Yang, Zhihua); Pan, SL (Pan, Shilie)
作者单位1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm CAS, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yang, ZH ,Hu, C ,Mutailipu, M ,et al. Oxyhalides: prospecting ore for optical functional materials with large laser damage thresholds[J]. JOURNAL OF MATERIALS CHEMISTRY C,2018,6(10):2435-2442.
APA Yang, ZH .,Hu, C .,Mutailipu, M .,Sun, YZ .,Wu, K .,...&Pan, SL .(2018).Oxyhalides: prospecting ore for optical functional materials with large laser damage thresholds.JOURNAL OF MATERIALS CHEMISTRY C,6(10),2435-2442.
MLA Yang, ZH ,et al."Oxyhalides: prospecting ore for optical functional materials with large laser damage thresholds".JOURNAL OF MATERIALS CHEMISTRY C 6.10(2018):2435-2442.
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