Synthesis and characterization of a new tin(IV) complex for fabrication of an organic light-emitting diode (OLED) and photoluminescence properties of the tin oxide core

Abstract

A new tin(IV) complex, (C13H10NO)[SnCl4(C9H6NO)]·2CH3OH, was prepared in a facile process and characterized by 1H, 13C, and 119Sn NMR, IR, and UV spectroscopy in addition to single-crystal X-ray diffraction analysis. Current–voltage (I–V) characteristics, photoluminescence (PL), and electroluminescence (EL) properties of the complex have been investigated and an application of the prepared complex in fabrication of an organic light-emitting diode has been demonstrated. The EL of the compound exhibits blue–green emission at 494 nm. Tin(IV) oxide core that resulted from direct thermal decomposition of the complex at 450 °C in air was characterized by X-ray powder diffraction and scanning electron microscopy; then, the PL property was investigated and compared with the PL of the complex. The tin(IV) oxide core showed a band gap of ∼3.81 eV determined from the UV/visible absorption spectrum. The tin oxide core showed stable PL with one emission peak centered at 581 nm.