Janus molecules: large second-order nonlinear optical performance, good temporal stability, excellent thermal stability and spherical structure with optimized dendrimer structure

2018 ◽  
Vol 2 (7) ◽  
pp. 1374-1382 ◽  
Author(s):  
Pengyu Chen ◽  
Huanyu Zhang ◽  
Mengmeng Han ◽  
Ziyao Cheng ◽  
Qian Peng ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Nonlinear Optical ◽  
Temporal Stability ◽  
Second Order ◽  
Optical Performance ◽  
Excellent Thermal Stability ◽  
Good Thermal Stability ◽  
Spherical Structure ◽  
Electro Optic

A Janus molecule J2 containing five FTC moieties exhibited good thermal stability, excellent electro-optic performance and good temporal stability.

A rigid ringlike molecule: large second-order nonlinear optical performance, good temporal and thermal stability, and ideal spherical structure conforming to the “site isolation” principle

2018 ◽  
Vol 6 (25) ◽  
pp. 6784-6791 ◽  
Author(s):  
Pengyu Chen ◽  
Guangchao Liu ◽  
Huanyu Zhang ◽  
Meng Jin ◽  
Mengmeng Han ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Nonlinear Optical ◽  
Second Order ◽  
Optical Performance ◽  
Site Isolation ◽  
Spherical Structure

Ringlike molecule R1 containing two FTC moieties exhibited excellent EO performance (d33 = 562 pm V−1 @1950 nm, T80% = 145 °C).

FTC-containing molecules: large second-order nonlinear optical performance and excellent thermal stability, and the key development of the “Isolation Chromophore” concept

2016 ◽  
Vol 4 (48) ◽  
pp. 11474-11481 ◽  
Author(s):  
Pengyu Chen ◽  
Xiuyang Yin ◽  
Yujun Xie ◽  
Shufang Li ◽  
Shiyu Luo ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Nonlinear Optical ◽  
Second Order ◽  
Optical Performance ◽  
Excellent Thermal Stability ◽  
Extended Application

The extended application of the concept of “Isolation Chromophore” produced a d33 value of 384 pm V−1 @ 1950 nm.

Thieno [2,3-b] indole-based second-order nonlinear optical chromophores with high thermal stability and good nonlinear optical performance

2022 ◽  
Vol 307 ◽  
pp. 130959
Author(s):  
Lingxiao Song ◽  
Hui Zhang ◽  
Xiaoyu Shi ◽  
Jie Zhang ◽  
Kexin Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Nonlinear Optical ◽  
Second Order ◽  
High Thermal Stability ◽  
Optical Performance ◽  
Nonlinear Optical Chromophores ◽  
Optical Chromophores

Molecular Design of Stable Second Order Nonlinear Optical Polymers

1990 ◽  
Vol 214 ◽  
Author(s):  
Braja K. Mandal ◽  
Jayant Kumar ◽  
Sukant Tripathy
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Molecular Design ◽  
Photochemical Reactions ◽  
Second Order ◽  
Optical Polymers ◽  
Electro Optic ◽  
Nonlinear Optical Polymers ◽  
Thermal Stability Of

ABSTRACTThe temporal and thermal stability of second order nonlinear optical properties of polymers is an important issue in the development of poly meric electro-optic devices. This has been addressed by introducing interchain crosslinking. A number of crosslinked systems developed by photochemical reactions have been presented.

Thermally Stable Polyimide/Silica Hybrid: Synthesis, Characterization and Optical Nonlinearity

2010 ◽  
Vol 123-125 ◽  
pp. 1275-1278
Author(s):  
Guang Yu Wu ◽  
Cheng Yao ◽  
Feng Xian Qiu
Keyword(s):  
Electron Microscopy ◽  
Thermal Stability ◽  
High Performance ◽  
Nonlinear Optical ◽  
Sol Gel ◽  
Optical Nonlinearity ◽  
29Si Nmr ◽  
Scanning Calorimetry ◽  
Excellent Thermal Stability ◽  
Electro Optic

An intercalation nonlinear-optical (NLO) polyimide was synthesized based on the 3,3’, 4,4’- Bisphenyltetracarboxylic (BPDA) and [(6-nitrobenzothiazole-2-yl)diazenyl]phenyl-1,3- diamine (NBADA). Then, hybrid polymer was synthesized by the sol-gel technique. FT-IR spectroscopy and 29Si NMR were used to characterize the structure of the hybrid. The results revealed that Q3, Q4 and T3 are the major microstructure elements in forming a network structure. The surface morphology, particle size, crystallinity and the thermal stability of the hybrid were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). DSC and TGA results showed that the glass transition temperature (Tg) and the decomposition temperature (Td) at 5% mass loss were 243, 359°C and 355, 456°C, respectively. These results showed that the hybrid material had excellent thermal stability than the pure polyimide. The electro-optic coefficients of nonlinear optical polyimide and hybrid were measured at the wavelength of 832 nm. The electro-optic coefficients were 22 and 19pm/V (poling voltage of 3.8KV, 210°C) and the values remained well (retained＞93% for more than 100h). The results suggest that the materials have potential applications for high performance optical device.

Thermal Stability of Solid Aluminum Electrolytic Capacitors with Conductive Polyaniline Counter Electrode

2012 ◽  
Vol 512-515 ◽  
pp. 1018-1021
Author(s):  
Xu Fei Zhu ◽  
Long Fei Jiang ◽  
Wei Xing Qi ◽  
Chao Lu ◽  
Ye Song
Keyword(s):  
Thermal Stability ◽  
Counter Electrode ◽  
Electrolytic Capacitor ◽  
Aluminum Electrolytic Capacitor ◽  
Dodecylbenzenesulfonic Acid ◽  
Excellent Thermal Stability ◽  
High Frequencies ◽  
Solid Aluminum ◽  
Good Thermal Stability ◽  
Thermal Stability Of

To overcome the risk of electrolyte leakage and the shortcoming of higher impedance at high frequencies for the conventional aluminum electrolytic capacitor impregnated with electrolyte solutions, solid aluminum electrolytic capacitor employing conducting polyaniline (PANI) as a counter electrode was developed. The as-fabricated solid capacitors have very low impedances at high frequencies and excellent thermal stability. The superior performances can be ascribed to high conductivity and good thermal stability of the camphorsulfonic acid (CSA)-dodecylbenzenesulfonic acid (DBSA) co-doped PANI.

Synthesis of nonlinear optical chromophores with isophorone-derived bridges for enhanced thermal stability and electro-optic activity

2020 ◽  
Vol 8 (27) ◽  
pp. 9226-9235 ◽  
Author(s):  
Fenggang Liu ◽  
Songmin Mo ◽  
Zhaofen Zhai ◽  
Meishan Peng ◽  
Shuangke Wu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Nonlinear Optical ◽  
Electro Optic ◽  
Nonlinear Optical Chromophores ◽  
Optical Chromophores

In this work, we developed a series of nonlinear optical chromophores J1–J4 with the same julolidinyl-based donor and tricyanovinyldihydrofuran acceptor with different modified isophorone-derived bridges.

Poled Polyimides for Thermally Stable Electro-Optic Materials

1992 ◽  
Vol 247 ◽  
Author(s):  
J. W. Wu ◽  
J. F. Valley ◽  
M. Stiller ◽  
S. Ermer ◽  
E. S. Binkley ◽  
...  
Keyword(s):  
Electric Field ◽  
Nonlinear Optical ◽  
Room Temperature ◽  
Curing Process ◽  
Thermally Stable ◽  
Excellent Thermal Stability ◽  
Electro Optic ◽  
Poling Temperature ◽  
Electric Field Poling ◽  
Thermal Stability Of

ABSTRACTUsing polyimide as host in a guest-host electro-optic (EO) thin film a thermally stable poled electro-optic response is demonstrated at temperatures at 150 °C and 300 °C. Electric field poling during curing process including imidization (170 -230 °C) and densification (340 -380 °C) accounts for the highly thermally stable EO response. As a room temperature curing process, chemical imidization is employed as a novel curing process. Dehydration occurring through imidization of the polyamic acid is completed chemically after poling rather than thermally during poling. After thermal aging at 155 °C (above the poling temperature) chemically imidized samples retain over 30% of their original poling induced EO signal while similarly poled samples, which have not been chemically imidized, produce a null EO response. For a class of polyimides possessing aliphatic structure, the thermoplastic behavior of cured guest-host polyimide system allowed the electric field poling at temperatures above the glass transition temperature (Tg). One example of polyimide doped with 10% nonlinear optical molecules exhibits Tg near 200 °C, leading to an excellent thermal stability of the poled EO response with a depoling knee-temperature of 150°C.

Dislocations that Decrease Size Mismatch within the Lattice Leading to Ultrawide Band Gap, Large Second‐Order Susceptibility, and High Nonlinear Optical Performance of AgGaS 2

2019 ◽  
Vol 131 (29) ◽  
pp. 10084-10088 ◽  
Author(s):  
Hui‐Min Zhou ◽  
Lin Xiong ◽  
Ling Chen ◽  
Li‐Ming Wu
Keyword(s):  
Band Gap ◽  
Nonlinear Optical ◽  
Second Order ◽  
Optical Performance ◽  
Size Mismatch ◽  
Order Susceptibility
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