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Inside Cover: Lead Mixed Oxyhalides Satisfying All Fundamental Requirements for High‐Performance Mid‐Infrared Nonlinear Optical Materials (Angew. Chem. Int. Ed. 19/2020)
Author(s) -
Chen Xinglong,
Jo Hongil,
Ok Kang Min
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202003882
Subject(s) - infrared , cover (algebra) , nonlinear optical , flux (metallurgy) , nonlinear system , materials science , optoelectronics , oxide , nanotechnology , engineering physics , chemical engineering , optics , physics , engineering , mechanical engineering , metallurgy , quantum mechanics
The lead mixed oxyhalides Pb 13 O 6 Cl 4 Br 10 , Pb 13 O 6 Cl 7 Br 7 , and Pb 13 O 6 Cl 9 Br 5 , with both a suitable band gap ( E g ) and NLO coefficient ( d ij ), satisfy all the fundamental requirements to be high‐performance mid‐IR nonlinear optical (NLO) materials. As reported by K. M. Ok and co‐workers in their Research Article on page 7514, millimeter‐sized crystals of Pb 13 O 6 Cl 4 Br 10 and Pb 13 O 6 Cl 7 Br 7 and centimeter‐sized crystals of Pb 13 O 6 Cl 9 Br 5 can be grown by the flux method in an open system, which is a huge advantage compared to the growth of all the non‐oxide IR NLO crystals.