Special Section on Optics, Spectroscopy, and Nanophotonics of Quantum Dots

Sensitization of photoprocesses in colloidal Ag2S quantum dots by dye molecules

[+] Author Affiliations
Oleg V. Ovchinnikov, Tamara S. Kondratenko, Irina G. Grevtseva, Mikhail S. Smirnov

Voronezh State University, Department of Optics and Spectroscopy, Universitetskay sq., 1, Voronezh 394006, Russia

Sergey I. Pokutnyi

Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine, 17 General Naumov Street, UA 03164 Kyiv, Ukraine

J. Nanophoton. 10(3), 033505 (Mar 02, 2016). doi:10.1117/1.JNP.10.033505
History: Received November 25, 2015; Accepted February 2, 2016
Text Size: A A A

Abstract.  The effect of photosensitization of IR luminescence excitation (1205 nm) of colloidal Ag2S quantum dots (QDs) with average size of 2.5±0.6  nm in gelatin at 600 to 660 nm by molecules of 3,3’-di-(γ-sulfopropyl)-4,4’,5,5’-dibenzo-9-ethylthiacarbocyanine betaine pyridinium salt (Dye1) and thionine dye (Dye2) was registered. Cis-J-aggregates of Dye1 and cations monomer of Dye2 conjugated with Ag2S QDs take part in this process. The photosensitization of luminescence excitation of colloidal Ag2S QDs was interpreted by resonance nonradiation transfer of electronic excitation energy from cis-J-aggregates of Dye1 and cations of Dye2 to centers of recombination luminescence of Ag2S QDs.

Figures in this Article
© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Oleg V. Ovchinnikov ; Tamara S. Kondratenko ; Irina G. Grevtseva ; Mikhail S. Smirnov and Sergey I. Pokutnyi
"Sensitization of photoprocesses in colloidal Ag2S quantum dots by dye molecules", J. Nanophoton. 10(3), 033505 (Mar 02, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.033505


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.