Abstract

Aging effects of porous silicon (PS) and the origin of blue shift are investigated. Photoluminescence (PL) measurements of the PS prepared with HF-EtOH solution showed a 210 meV blue shift after 1.5 months. It is found from deconvolution of the PL spectra that this shift is not fully related to the quantum confinement (QC) effect. For stable PS formation, a HF-EtOH-H₂O₂ solution is used. A stable luminescence at 2.01 eV with a Gaussian distribution is obtained when the samples are kept in H₂O₂ for 45 min after the anodization.

©2003 Optical Society of America

Photoluminescence from n-type porous silicon layer enhanced by a forward-biased np-junction

Jia-Chuan Lin, Wei-Lun Chen, and Wei-Chih Tsai
Opt. Express 14(21) 9764-9769 (2006)

Temperature dependence and aging effects on silicon nanowires photoluminescence

Pietro Artoni, Alessia Irrera, Fabio Iacona, Emanuele F. Pecora, Giorgia Franzò, and Francesco Priolo
Opt. Express 20(2) 1483-1490 (2012)

Edge effect in electrochemical etching on porous silicon and its direct evidence on photoluminescence patterns

Jia-Chuan Lin, Hsi-Ting Hou, Hsin-Kai Wang, Kuo-Chang Lo, and Meng-Kai Hsu
Opt. Mater. Express 7(3) 880-887 (2017)

Three-dimensional electrochemical etching by grid ditching for multi-wavelength visible-light emission on porous silicon

Jia-Chuan Lin and Yu-Chen Huang
Opt. Express 28(22) 32549-32555 (2020)

Fabrication and surface passivation of porous 6H-SiC by atomic layer deposited films

Weifang Lu, Yiyu Ou, Paul Michael Petersen, and Haiyan Ou
Opt. Mater. Express 6(6) 1956-1963 (2016)