| Title | Rare earth induced formation of delta-BiB3O6 at ambient pressure with strong second harmonic generation |
| Authors | Cong, Rihong Yang, Tao Lin, Zheshuai Bai, Lei Ju, Jing Liao, Fuhui Wang, Yingxia Lin, Jianhua |
| Affiliation | Chinese Acad Sci, Key Lab Funct Crystals & Laser Technol, Tech Inst Phys & Chem, BCCRD, Beijing 100080, Peoples R China. Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China. Chinese Acad Sci, Key Lab Funct Crystals & Laser Technol, Tech Inst Phys & Chem, BCCRD, POB 2711, Beijing 100080, Peoples R China. |
| Keywords | NONLINEAR-OPTICAL COEFFICIENTS CRYSTAL-STRUCTURE BISMUTH BORATE LASER CRYSTAL META-OXOBORATE BIB3O6 BIBO MECHANISM GROWTH ND RE |
| Issue Date | 2012 |
| Publisher | 材料化学杂志 |
| Citation | JOURNAL OF MATERIALS CHEMISTRY.2012,22,(34),17934-17941. |
| Abstract | Pure delta-BiB3O6, which is the polymorph of the most promising nonlinear optical (NLO) crystal alpha-BiB3O6 (BIBO), was first synthesized at high pressure/high temperature. delta-BiB3O6 possesses a non-centrosymmetric structure and moreover, its three-dimensional (3D) structure rather than 2D in BIBO suggests a high possibility to grow optical single-crystals. As an important candidate for NLO materials, we performed theoretical calculations of delta-BiB3O6 based on first principles. Surprisingly, it gives a significant higher second-harmonic generation (SHG) coefficient than previous experimental results (comparable to KDP), which greatly stimulates us to find a convenient synthesis method of the delta-phase at ambient pressure. In the present work, we report that rare-earth doping would stabilize the delta-phase at ambient pressure via a sol-gel method and the doping would reach quite a high level, delta-Bi1-xRExB3O6 (RE = La, Ce, Pr, Nd, 0 < x <= 0.15). The large miscibility is explained based on the structural similarity between delta-BiB3O6 and gamma-REB3O6. The observed powder SHG signals are 4-6 times of KDP, consistent with our theoretical calculations. Furthermore the high level of Nd3+-doping might extend its applications to SFD or SSFM laser materials. |
| URI | http://hdl.handle.net/20.500.11897/150976 |
| ISSN | 0959-9428 |
| DOI | 10.1039/c2jm32744a |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 稀土材料化学与应用国家重点实验室 |
