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Image‐Contrast Technology Based on the Electrochemiluminescence of Porous Silicon and Its Application in Fingerprint Visualization
Author(s) -
Tan Jie,
Xu Linru,
Li Tong,
Su Bin,
Wu Jianmin
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201404948
Subject(s) - electrochemiluminescence , fingerprint (computing) , visualization , contrast (vision) , computer science , silicon , porous silicon , high contrast , nanotechnology , materials science , process (computing) , artificial intelligence , chemistry , optoelectronics , electrode , optics , physics , operating system
The electrochemiluminescence (ECL) of porous silicon (pSi) has attracted great interest for its potential application in display technology and chemical sensors. In this study, we found that pSi with a different surface chemistry displayed an apparently different dynamic ECL process. An image‐contrast technology was established on the basis of the intrinsic mechanism of the ECL dynamic process. As a proof of principle, the visualization of latent fingerprints (LFPs) and in situ detection of TNT in fingerprints was demonstrated by using the ECL‐based image‐contrast technology.