Stilbazolium-MPS ₃ Nanocomposites with Large Second-Order Optical Nonlinearity and Permanent Magnetization

Abstract

Intercalated layered materials comprising an organic dye and inorganic MPS(3) [where M is either the manganese ion (Mn(2+)) or the cadmium ion (Cd(2+))] phases have been prepared. The intercalation process induces a spontaneous poling, giving rise to an efficiency of 750 times that of urea in second-harmonic generation for the cadmium derivative. In addition, the manganese derivative displays a permanent magnetization below 40 kelvin. Thus, these materials exhibit both a large optical nonlinearity and magnetic ordering.

Investigation of longitudinal 31P relaxation in metal selenophosphate compounds

“…The latter are important in the areas of catalysis, ceramics, glasses, and molecular sieves. Many thio-and seleno-phosphates however also exhibit promising and unique properties such as intercalation chemistry, ion-exchange, and magnetic and optical phenomena [2][3][4][5].…”

“…Interesting properties and uses exhibited by some [P 2 Q 6 ] 4À containing compounds are: ferroelectricity for use in memory devices (Sn 2 P 2 S 6 , CuInP 2 S 6 ) [11,12]; non-linear optical properties (Mn 2 P 2 S 6 ) [5]; and photoconductivity (In 1.33 P 2 Se 6 ) [13,14].…”

Amplification of the linear and nonlinear optical response of a chiral molecular crystal

“…A first theoretical estimate of the enhancement factor can be obtained from the coefficients ψ 0 | μ e mag |ψ n /(E n − E 0 ) in Eq. (4). To this purpose, we use the results obtained from the TD-DFT calculations, and consider only the first electronically excited state.…”

“…1,2 Organic materials have been found to exhibit second-harmonic generation (SHG) efficiencies that by far exceed those of inorganic nonlinear optical (NLO) crystals such as lithium niobate (LiNbO 3 ) or potassium dihydrogen phosphate (KDP). 3,4 Other advantages of organic materials include fast response times and high optical damage thresholds. Apart from the more common push-pull molecules, several approaches to chromophore optimization have been proposed such as the use of octupolar systems 5,6 and molecules with tuned bond length alternation.…”

A density functional theory study of Raman modes of cadmium hexathiohypodiphosphate (CdPS3)

“…CdPS 3 quantum dots have also been deposited on substrates in solar cells to absorb sunlight and produce more free electrons to enhance the efficiency of solar cells. Insertion of intrinsic conducting polymer in layered host materials results in a dramatic modification of the physical properties, which has led to various applications as nonlinear optical materials [14,15], magnetic materials [16,17], catalysts and cathode materials in battery applications [18,19]. Different synthetic approaches [20,21] combining a variety of host [22] and guest molecules [23][24][25] [26][27][28] and the literature on its counterpart using density functional theory based calculations is still lacking.…”