Lim, JE Chae, WS Lee, Y Kim, KJ 2024-01-21T18:40:39Z 2024-01-21T18:40:39Z 2021-09-01 1997-02 0013-4651 https://pubs.kist.re.kr/handle/201004/143973 Spectral shifts of visible electroluminescence (EL) from cathodically biased n-Si in electrolyte solution containing persulfate ions are described. The electrochemically etched n-Si cathodes exhibit a blue shift of the EL with the increase of applied potential. It is explained that the blue shift is caused by the formation of an accumulation layer and the Fermi level pinning in the porous Si. A study of the EL as a function of time at a constant potential shows a red shift, which can be attributed to the bandgap lowering caused by the conversion of the predominant surface bonds Si-H to Si-Si. Electropolymerization of aniline on the porous Si surface enhanced the stability of the EL possibly due to the strengthening of the surface bonds. English ELECTROCHEMICAL SOC INC VISIBLE ELECTROLUMINESCENCE LIGHT-EMISSION SILICON PHOTOLUMINESCENCE ENHANCEMENT DEVICES DIODES Spectral shifts of electroluminescence from porous n-Si under cathodic bias Article 10.1149/1.1837461 1 JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.144, no.2, pp.647 - 652 JOURNAL OF THE ELECTROCHEMICAL SOCIETY 144 2 647 652 scie scopus A1997WL64700045 2-s2.0-0031077002 Electrochemistry Materials Science, Coatings & Films Electrochemistry Materials Science Article VISIBLE ELECTROLUMINESCENCE LIGHT-EMISSION SILICON PHOTOLUMINESCENCE ENHANCEMENT DEVICES DIODES electroluminescence porous silicone SIMS aniline