PbBe2B2O6: an ultraviolet nonlinear-optical crystal with unprecedented π-π interacting BeBO5 group.
Chem Commun (Camb)
; 58(89): 12471-12474, 2022 Nov 08.
Article
de En
| MEDLINE
| ID: mdl-36268796
ABSTRACT
π-Conjugated-group systems are fascinating and have been pursued for nonlinear materials owing to their superior optical and electronic properties, but are so far quite limited. Here, we report a new ultraviolet (UV) nonlinear-optical (NLO) beryllium borate crystal PbBe2B2O6 that manifests an unprecedented π-π interacting BeBO5 group, constructed by interconnected π-conjugated BeO3 and BO3 units. The PbBe2B2O6 crystal has a short UV cutoff wavelength of 249 nm, phase-matching behavior in the whole transmission region from UV to IR light region (249-3166 nm), and remarkably the largest NLO effect (18.5 × KDP) among the π-conjugated UV NLO crystal materials. Theoretical calculation unravels that the highly NLO-active BeBO5 group has strong π-π interactions. This work offers an innovative source of BeO3-participating NLO materials and expands the frontier of NLO research.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Chem Commun (Camb)
Sujet du journal:
QUIMICA
Année:
2022
Type de document:
Article
Pays d'affiliation:
Chine