Luminescence of porous silicon/terbium organic complex hybrid

A simple but effective doping method to introduce organometallic complexes into porous silicon was developed. Upon hybridization with a Tb-sulfosalicylic complex, porous silicon emits bright green emission when excited with an UV light. The photoluminescence spectrum shows that only Tb³⁺ ions emit efficiently while the luminescence of porous silicon and organic ligands are almost thoroughly quenched. Based on the Fourier transform infrared and photoluminescence measurements, it is proposed that Tb³⁺ complex was physically adsorbed in the pores of porous silicon. The origin of Tb³⁺ PL was also elucidated from the PL excitation spectrum measurement.

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. X. Meng, T. K. Li, W. K. Wong, K. W. Cheah; Luminescence of porous silicon/terbium organic complex hybrid. Appl. Phys. Lett. 30 October 2000; 77 (18): 2795–2797. https://doi.org/10.1063/1.1320843 and may be found at https://pubs.aip.org/aip/apl/article/77/18/2795/148547/Luminescence-of-porous-silicon-terbium-organic.