TY - JOUR
T1 - Synthesis and characterization of new benzo[e]indol salts for second-order nonlinear optics
AU - Wen, Jiahui
AU - Ping, Linjun
AU - Li, Ruian
AU - Shang, Shufang
AU - Zhao, Weidong
AU - Hai, Mingtan
AU - Cao, Hui
AU - Yuan, Xiaotao
AU - Wang, Dong
AU - He, Wanli
AU - Yang, Zhou
N1 - Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2020/4
Y1 - 2020/4
N2 - Organic second-order nonlinear optical materials are of great significance in the field of integrated photonics, optical data storage and optical information processing. In this work, two iodide salts with benzo[e]indol cations as electron-withdrawing groups were designed and synthesized, which are (E)-2-(4-hydroxy-3-methoxystyryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (1-TB) and (E)-2-(3,4-dihydroxystyryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (2-TB). Under the irradiation of 1064 nm laser, the second harmonic generations of the 1-TB and 2-TB powders are 760 and 580 times that of urea, respectively. Among them, crystals of 1-TB are successfully grown by a slow cooling method without using seed crystals. Bulk crystal with a size of 8.0 × 3.0 × 1.0 mm3 and many submillimeter single crystals with excellent optical quality are obtained.
AB - Organic second-order nonlinear optical materials are of great significance in the field of integrated photonics, optical data storage and optical information processing. In this work, two iodide salts with benzo[e]indol cations as electron-withdrawing groups were designed and synthesized, which are (E)-2-(4-hydroxy-3-methoxystyryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (1-TB) and (E)-2-(3,4-dihydroxystyryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (2-TB). Under the irradiation of 1064 nm laser, the second harmonic generations of the 1-TB and 2-TB powders are 760 and 580 times that of urea, respectively. Among them, crystals of 1-TB are successfully grown by a slow cooling method without using seed crystals. Bulk crystal with a size of 8.0 × 3.0 × 1.0 mm3 and many submillimeter single crystals with excellent optical quality are obtained.
KW - Nonlinear optical materials
KW - Organic single crystal
UR - http://www.scopus.com/inward/record.url?scp=85082974713&partnerID=8YFLogxK
U2 - 10.3390/cryst10040242
DO - 10.3390/cryst10040242
M3 - Article
AN - SCOPUS:85082974713
SN - 2073-4352
VL - 10
JO - Crystals
JF - Crystals
IS - 4
M1 - 242
ER -