CONFERENCE PROCEEDINGS
Advanced Search
Home > Journals > J. Photon. Energy > Volume 8 > Issue 2 > Article
Open Access
6 November 2017 Kinetically controlled crystal growth approach to enhance triplet energy migration-based photon upconversion
Taku Ogawa, Nobuhiro Yanai, Hironori Kouno, Nobuo Kimizuka
Author Affiliations +
Journal of Photonics for Energy, Vol. 8, Issue 2, 022003 (November 2017). https://doi.org/10.1117/1.JPE.8.022003
Abstract
Improving efficiency of triplet–triplet annihilation-based photon upconversion (TTA-UC) in crystalline media is challenging because it usually suffers from the severe aggregation of the donor (sensitizer) molecules in acceptor (emitter) crystals. We show a kinetically controlled crystal growth approach to improve donor dispersibility in acceptor crystals. As the donor–acceptor combination, a benchmark pair of platinum(II) octaethylporphyrin (PtOEP) and 9,10-diphenylanthracene (DPA) is employed. A surfactant-assisted reprecipitation technique is employed, where the concentration of the injected PtOEP–DPA solution holds the key to control dispersibility; at a higher PtOEP–DPA concentration, a rapid crystal growth results in better dispersibility of PtOEP molecules in DPA crystals. The improvement of donor dispersibility significantly enhances the TTA-UC quantum yield. Thus, the inherent function of donor-doped acceptor crystals can be maximized by controlling the crystallization kinetics.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Citation Download Citation
Taku Ogawa, Nobuhiro Yanai, Hironori Kouno, and Nobuo Kimizuka "Kinetically controlled crystal growth approach to enhance triplet energy migration-based photon upconversion," Journal of Photonics for Energy 8(2), 022003 (6 November 2017). https://doi.org/10.1117/1.JPE.8.022003
Received: 25 August 2017; Accepted: 19 October 2017; Published: 6 November 2017
JOURNAL ARTICLE
 11 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Lens.org Logo
CITATIONS
Cited by 20 scholarly publications.
Advertisement
Advertisement
KEYWORDS
Crystals
Photonic crystals
Molecules
Quantum efficiency
Upconversion
Absorption
Molecular aggregates
RELATED CONTENT
Tuning of fluorescence in films and nanoparticles of oligo-phenylenevinylenes
Proceedings of SPIE (December 01 1997)
Stokes and anti-Stokes luminescence in LiTaO3:Ho
Proceedings of SPIE (August 10 2001)
Absolute photoluminescence quantum yield of molecular organic thin films ...
Proceedings of SPIE (December 16 1998)
Nanoscale C60 aggregates in solution
Proceedings of SPIE (November 01 1997)
Optical properties of films built up by polar molecules
Proceedings of SPIE (February 06 1997)
Photoinduced proton transfer reaction in pentacene-doped benzoic acid crystals
Proceedings of SPIE (March 08 1995)
Nonlinear spectroscopy of C60 single crystal
Proceedings of SPIE (November 28 1994)
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top