Deep‐Ultraviolet Nonlinear Optical Crystal Cs2Al2(B3O6)2O: A Benign Member of the Sr2Be2(BO3)2O Family with [Al2(B3O6)2O]2− Double Layers

For the explorations of deep ultraviolet (DUV) nonlinear optical (NLO) borates, a type of important optoelectronic material, the (BO3)3− group has been long regarded as the sole microscopic optically‐active unit, and toxic Be‐containing raw materials are frequently‐adopted. Herein, a new DUV NLO cry...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry : a European journal 2018-06, Vol.24 (31), p.7856-7860
Main Authors: Fang, Zhi, Jiang, Xingxing, Duan, Meihong, Hou, Zhanyu, Tang, Changcheng, Xia, Mingjun, Liu, Lijuan, Lin, Zheshuai, Fan, Feidi, Bai, Lei, Chen, Chuangtian
Format: Article
Language:English
Subjects:
Aluminum
Beryllium
Birefringence
Borates
Cations
chemical co-substitution
Chemistry
Crystal growth
Crystals
Cs2Al2(B3O6)2O
deep-ultraviolet
Energy gap
Melts
nonlinear optical material
Nonlinear optics
Optoelectronics
Organic chemistry
Raw materials
SBBO family
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For the explorations of deep ultraviolet (DUV) nonlinear optical (NLO) borates, a type of important optoelectronic material, the (BO3)3− group has been long regarded as the sole microscopic optically‐active unit, and toxic Be‐containing raw materials are frequently‐adopted. Herein, a new DUV NLO crystal, Cs2Al2(B3O6)2O (CABO), was designed and synthesized by simultaneously replacing the (BO3)3− groups and Be2+ cations for (B3O6)3− units and Al3+ cations in Sr2Be2(BO3)2O, which possesses a favorable structure, through a chemical co‐substitution approach. CABO exhibits a considerable DUV NLO capability because of the wide band gap and large birefringence originating from the [Al2(B3O6)2O]2− double layers. Remarkably, CABO melts congruently and does not contain the toxic beryllium, which is favorable for bulk‐size crystal growth and practical applications. SHG without Be! The first B3O6‐based Sr2Be2B2O7‐type deep‐ultraviolet nonlinear optical crystal, Cs2Al2(B3O6)2O, was designed by co‐substitution method and proven to exhibit a considerable DUV NLO capability for its [Al2(B3O6)2O]2− double layers.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201801742