Organic Semiconductor Lasers and Tailored Nanostructures for Raman Spectroscopy

by Xin Liu

Institution: Universität Karlsruhe
Year: 2015
Keywords: Organischer Halbleiter, DFB-Laser, oberflächenverstärkte Raman-Spektroskopie, Lab-on-Chip organic semiconductor, DFB-laser, surface-enhanced Raman spectroscopy, lab-on-a-chip
Record ID: 1118146
Full text PDF: http://digbib.ubka.uni-karlsruhe.de/volltexte/documents/3562305


This work presents the application of organic semiconductor distributed feedback laser as free-space excitation source in Raman spectroscopy. Surface-enhanced Raman scattering effect is exploited to improve the detection sensitivity. The SERS condition is achiedved by using substrates consisting of gold-coated polymeric nanopillar arrays. The organic-laser-excited SERS measurements are applied to verify the concentration variation of biomolecule adenosine in aqueous solutions.