A novel 2-(aminomethyl)pyridineH₂PO₄ crystal with second-order nonlinear optical performance

Abstract

Organic phosphate nonlinear optical (NLO) materials, especially for the introduction of π-conjugated organic cationic, have attracted attention due to their excellent performance and promising applications. Here, combining the π-conjugated organic...

From C4H7N2Ge0.4Sn0.6Br3 to C6H11N2Ge0.4Sn0.6Br3: Effective Modulation of the Second Harmonic Generation Effect and Optical Band Gap by Planar π-Conjugated Organic Cation Size

“…In addition, we investigated their photoluminescence (PL) properties. The photoluminescent excited states were measured at room temperature (298 K) under the excitation condition of 300−360 nm, as shown in Figure 3c,d, the optimal excitation wavelengths of I and II are about 308 and 354 nm, respectively, and under the optimal excitation wavelengths, the broadband blue−green emission occurs at 468 and 467 nm, 57 respectively, and the full-width at halfmaximum (fwhm) is 74 and 42 nm. The cationic groups (C 4 H 7 N 2 ) + and (C 6 H 11 N 2 ) + both contain an imidazole ring, but the substituents are different.…”