title: Image-contrast technology based on the electrochemiluminescence of porous silicon and its application in fingerprint visualization.
abstract: 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.
authors.affiliation: Department of Chemistry, Institution of Microanalytical Systems, Zhejiang University, Hangzhou, 310058 (China).
authors.forename: Jie
authors.initials: J
authors.lastname: Tan
authors.forename: Linru
authors.initials: L
authors.lastname: Xu
authors.forename: Tong
authors.initials: T
authors.lastname: Li
authors.forename: Bin
authors.initials: B
authors.lastname: Su
authors.forename: Jianmin
authors.initials: J
authors.lastname: Wu
keywords: electrochemiluminescence; explosives detection; latent fingerprints; luminescence imaging; porous silicon