Paper Title:
Application of CdTe Quantum Dots to Development Fingerprints on Adhesive Surfaces
  Abstract

Water-soluble fluorescent CdTe quantum dots were synthesized using TGA (Thiolglycolic acid) as the stabilizer and characterized by fluorescence spectroscopy. This fluorescent material was applied to development fingerprints deposited on the sticky side of adhesives. The development conditions such as development time, temperature and pH value of QDs solution were investigated. The comparison experimental with traditional methods and development rate were also studied. The results show that this material exhibited strong visible fluorescence under excitation at 365 nm. CdTe QDs can detect fingerprints on different adhesive surfaces. In addition, the development rate of fingerprints on the adhesive side of cellulose tape was discussed and the effective development rate for 30-days-aged fingerprints can reach to 72%. Furthermore, the developed fingerprints have higher and stable fluorescence intensity, weaker background interference and better contrast between fingerprints and the substrate. CdTe QDs is a promising reagent for fingerprints development on adhesive surfaces.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Materials Science and Engineering
Edited by
Ran Chen
Pages
874-880
DOI
10.4028/www.scientific.net/MSF.694.874
Citation
R. Q. Yang, Y. G. Wang, B. B. Xia, Y. J. Wang, J. J. Liu, "Application of CdTe Quantum Dots to Development Fingerprints on Adhesive Surfaces", Materials Science Forum, Vol. 694, pp. 874-880, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yu Juan Jin, Yun Jun Luo, Guo Zhi Xu, Biao Yang
Chapter 1: Materials Properties
Abstract:Uniform and well-dispersed photoluminescent semiconductor CdSe(Cadmium selenium) QDs(Quantum dots) were in-situ prepared stabilized by...
900
Authors: Yu Juan Jin, Yun Jun Luo, Yuan Feng Wang, Hui Sun, Hao Nan Zhang, Di Jin
Chapter 2: Advanced Materials and Material Science, Materials Processing and Machining
Abstract:Uniform and well-dispersed photoluminescent semiconductor CdSe (Cadmium selenium) QDs (Quantum dots) were in-situ prepared by taking...
319