Strong alternating piezoelectric field enhanced the piezocatalytic degradation of carbamazepine by a 3-chromophore material Cd4BiO(BO3)3 coupled ultrasound in water

Pb3.5GeS4Br3: the first phase-matching thiogermanate halide infrared nonlinear optical material

“…[1][2][3][4][5][6] Based on their operating regions, NLO materials can be classified into deep-ultraviolet (DUV), ultraviolet-visible to near-infrared (UV-vis-NIR), and mid-to far-infrared (IR) NLO materials. In the past few decades, a large number of excellent oxide-based UV or DUV NLO materials, including β-BaB 2 O 4 , 7 LiB 3 O 5 , 8 KH 2 PO 4 , 9 KTiOPO 4 , 10,11 KBe 2 BO 3 F 2 12 and NH 4 B 4 O 6 F, 13 have been rationally designed and fabricated, [14][15][16][17] while for mid-and far-IR bands, the commercialized NLO materials are composed of chalcopyrite-like AgGaS 2 (AGS), AgGaSe 2 (AGSe) and ZnGeP 2 (ZGP). [18][19][20] Nevertheless, due to the intrinsic drawbacks of these materials, such as the low laser-induced damage threshold (LIDT) in AGS and AGSe, 21 the non-phase matching behavior of AGSe and strong twophoton absorption in ZGP at around ∼1 μm, their applications are highly limited.…”

Scalable synthesis of Bi2O2S nanoplates with large piezoelectric potential induced by a built-in electric field in a [Bi2O2]2+ layer for the degradation of organic contaminants

“…Then a built-in electric field (BIEF) is generated, which further induces the electrons (e − ) and holes (h + ) to separate in a crystal that is excited by external stress, and thus redox reactions occurred with the adsorbed substances on the catalyst surface to effectively degrade organic pollutants. Therefore, the design and construction of piezoelectric catalysts for the generation of BIEF is crucial, 8–10 which requires piezoelectric catalysts with asymmetric crystal structures and flexible shapes. 11–13…”